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BRISTELL B23 AIRCRAFT FLIGHT MANUAL The technical content of this document is approved under the authority of the DOA ref. EASA. 21J.411 Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL INTENTIONALLY LEFT BLANK Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Model: BRISTELL B23 Serial No: ……………. Registration: ……………… Document No.: ADXC-73-001-AFM Date of Issue: 15.04.2021 For approval reference of pages identified as “Approved page” refer to Section 0.1 record of revisions This aircraft must be operated in compliance with information and limitations contained herein.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL SECTION 0 TECHNICAL INFORMATION Record of revisions ..........0-1 List of Effective Pages ........... 0-2 Table of Contents ........... 0-5 Symbols, Abbreviations, Terminology ....0-6 Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Record of revisions Any revision of the present manual, except actual weighing data, must be recorded in the following table and in case of approved Sections endorsed by the Agency. The new or amended text in the revised pages will be indicated by a black vertical line in the left hand margin, and the Revision No.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Table of Contents Sections: Technical Information ..............0-0 General ..................1-0 Limitations .................. 2-0 Emergency procedures .............. 3-0 Normal procedures ..............4-0 Performance ................5-0 Weight and balance ..............6-0 Aeroplane and system description..........7-0 Aeroplane handling, servicing and maintenance .......
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Symbols, Abbreviations, Terminology AEPS Aircraft emergency parachute system Above ground level C.G. Centre of gravity Cylinder head temperature EASA European Union Aviation Safety Agency Exhaust gas temperature Engine indication system (used to describe the physical unit...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Speeds: Calibrated airspeed Equivalent airspeed Indicated airspeed True airspeed Design manoeuvring speed Maximum speed with flaps extended Maximum level flight speed Never exceed speed Maximum structural cruising speed Stall speed Stell speed in landing configuration...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction The aeroplane Flight Manual has been prepared to provide pilots and operators with information for the safe and efficient operation of this very light aeroplane. This manual includes the information required to be supplied to the pilot...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Warnings, cautions and notes 1.3.1 AFM warnings, cautions and notes The following definitions apply to warnings, cautions and notes used in the flight manual. WARNING Means that the non-observation of the corresponding procedure leads to an immediate or important degradation of the flight safety.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 1.3.2 Pilot warnings, cautions and advisory lights The colour coding for pilot indications follows the aviation standard: RED: immediate danger, immediate pilot action AMBER: condition acceptable only for limited time GREEN: normal operation Any other: Information The following table gives an overview of implication and required procedures to react and interpret the indications.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Light Display Condition Implication/ Procedure Electric system Check ALT1/ALT2 ON cont... VOLTS voltage Check AMP positive (charging the system) below 8 Volt RED, USB power - remove load switch off all non-essential master electrical equipment warning see AFM 3.8.5 Alternator...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Light Display Condition Implication/ Procedure Electric system Check ALT1/ALT2 ON cont... VOLTS voltage below 11 Check AMP positive (charging AMB. Volt the system) USB power - remove load master caution switch off all non-essential electrical equipment Observe;...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Light Display Condition Implication/ Procedure AMB. Usable fuel This system is electrically remaining less than independent of the fuel QTY FUEL 6 liter in left tank indication. In case of Left conflicting information landing is advised as soon as practical AMB.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction Section 2 includes operating limitations, instrument markings, and basic placards necessary for safe operation of the aeroplane, its engine, standard systems and standard equipment. The limitations included in this section and in Section 9 have been approved by European Union Aviation Safety Agency.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Airspeed indicator markings Airspeed limitation color coding is programmed in the MFD/PFD displays IAS value or range Marking Significance knots Flap Operating Range. (Lower limit is maximum weight 1.1 VS0 in White 48-82 landing configuration.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Powerplant instrument markings Powerplant limitation color coding is programmed in the MFD/PFD displays Caution Normal Minimum Caution Maximum Range Operating Rotax 912 Limit Range Range (yellow) Range (red line) (yellow) (red line) (green) Engine speed <...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Miscellaneous instrument markings MFD/PFD displays are programmed with limitation color coding for: Normal Minimum Caution Caution Maximum Operating Limit Range Range Limit Range (red line) (yellow) (yellow) (red line) (green) Electric 8 to 11 11 to 12...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL upper area ............... 1 kg Max. Wing locker loading (per side) ........20 kg Maximum lateral asymmetry (fuel+wing locker baggage) .. 15 kg Minimum crew weight ............55 kg Maximum crew weight ............. see 6.4 NOTE Actual empty weight is shown in SECTION 6.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Approved manoeuvres EASA category: CS23 Amdt 5 Level 1 (AMC3 CS-VLA), 1. All standard manoeuvres during normal flight 2. Stalls (except whip stalls) 3. Non-aerobatic manoeuvres: 4. Lazy eight 5. Chandelle 6. Steep turn in which the angle of bank is not more than 60°...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 2.13 Fuel Tank capacity ........60 l in each fuel tank Total fuel ......2 x 60 l = 120 l Usable fuel ....... 2 x 59 = 118 l Unusable fuel ......2 x 1l = 2 l Approved fuel grades: •...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 2.16 Placards Limitation Placard: Placard Meaning and location On the instrument panel left- hand side above MFD On the instrument panel left- hand side above MFD. Other Placards: Placard Meaning and location Instrument panel left to right:...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Placard Meaning and location Call sign label (example) above PFD screen Above dimmer and indication lights centre panel On centre panel next to trim indication Heat direction control knob lower right panel Heat control knob lower right...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Placard Meaning and location Compass deviation placard on front of magnetic compass Cabin and Center console front to aft: Left fuselage side panel, below canopy frame Right fuselage side panel, below canopy frame At internal canopy locking...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Placard Meaning and location On left and right side of centre console Headset / Headset power USB outlets between seats On the wall of the lower fuselage luggage compartment Between pilot seat to indicate the ELT location which is on...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Placard Meaning and location On lower left side of lower cowling Conv. ethylene-glycol 50% water dilution, On coolant reservoir 2.5L, refer to Rotax SI-912-016 On firewall, right top engine side above brake fluid reservoir On AEPS Egress...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Placard Meaning and location At canopy lock outside left Left and right static port on fuselage side wall Aircraft identification plate (might vary with nationality of registration), mounted on the rear fuselage, beneath the horizontal stabiliser...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Around fuel tank filler caps on both wings. On the trailing edge of flaps, ailerons, trim tab and rudder to avoid excessive pressure on them. Wing flap root areas Marking at elevator trim indicator Marking for the optimal...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 2.17 Minimum Equipment The following equipment must be in operating conditions for the respective operation modes Item/Equipment VFR-Day VFR-Night Emergency exit hammer Landing light Anti-Collision light Position light during twilight L3 ESI-500 with Magnetometer Pitot heat...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction Section 3 provides checklists and detail procedures for coping with various emergencies that may occur. In case of emergency the process steps described in this section should be followed and applied as necessary to correct the problem.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 10. Master switch OFF for VFR DAY ON for VFR NIGHT WARNING After switching Master switch OFF, control of the flaps is no longer possible 11. Landing Lights ON for VFR NIGHT 12. Land 3.2.3...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Smoke and fire 3.4.1 Engine fire on ground at engine starting 1. Starter keep in starting position 2. Brakes apply 3. Fuel Selector close 4. Throttle full power 5. Heating close 6. Ignition switch off after the fuel in...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL If landing is ensured OR fire gets critical: 3. Fuel Selector close 4. Throttle full power 5. Ignition switch off after the fuel in carburettors is consumed and engine shut down 6. Master 7. Land and stop the airplane 8.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 3.4.5 Fire in the cockpit 1. Master switch switch off 2. Heating close 3. Fire extinguisher (if installed) use as appropriate 4. If fire can be stopped: Land as soon as practical If not: Land as soon as possible...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Glide 1. Speed 67 KIAS 2. Flaps retracted CAUTION Engine rotation with ignition off does not stop with airspeed even at stall. However an inflight engine failure or propeller control failure could lead to such condition which is not tested. A further degradation of glide performance in such condition should be anticipated Document No.: ADXC-73-001-AFM...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Emergency landing 3.6.1 Landing without engine power Emergency landings might be required in the case of engine failure and the engine cannot be re-started. 1. Speed adjust for optimum gliding 67 KIAS 2. Propeller Take-off position 3.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 6. Perform low-altitude passage into wind over the right-hand side of the chosen area with flaps extended 10° and thoroughly inspect the landing area for obstacles. 7. Perform circuit pattern. 8. Perform approach 9. Flaps extend as needed 10.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Recovery from unusual attitudes 3.7.1 Loss of spatial orientation If spatial orientation is lost or manual control of the airplane is no longer possible: Press „LVL“ button on the Autopilot! The autopilot will take over control and put the airplane in a level attitude.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Other emergencies 3.8.1 Vibration If any forced aircraft vibrations appear, it is necessary: 1. To set engine speed to such power rating where the vibrations are lowest. In case of severe vibrations, with identified origin being the powerplant and endangering structural integrity the engine should be shut down.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 3. Speed 67 KIAS 4. Land as soon as practical 3.6.2. 3.8.5 Alternator failure / use of back-up battery The Rotax 912 S engine has an integrated AC generator, a further external alternator is installed. Alternator failure is indicated on the PFD.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 3.8.6 Bus system failure The B23 electric bus system features two main sections Pilot/ALT1 (with the Avionic Sub-Bus) and Batt/ALT 2. They are connected via the BUS- TIE circuit breaker Both sides of the system provide a set of functions enabling safe flight and landing.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 2. Exit icing conditions change altitude or turn back. 3. Carb heat pull knob to ON 4. Cockpit heating pull knob to ON 5. Up/Down knob pushed forward (UP) to defrost windshield 3.8.9 Loss of primary instruments Although the Garmin displays might be used as main electronic flight instrument, the independent L3 ESI-500 is the primary flight display.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL WARNING Avoid activation in strong updrafts. In these situations, it is best to first get away from the updraft, and then to activate the rescue system. WARNING Minimum effective altitude for the use of AEPS is 1000ft (300 m) above ground.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL SECTION 4 NORMAL PROCEDURES Introduction ............4-1 Daily inspection ............4-1 Pre-flight inspection ..........4-2 Normal procedures and check list ......4-6 4.4.1 Before engine starting ............. 4-6 4.4.2 Use of external power ............. 4-6 4.4.3...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction Section 4 provides checklist and amplified procedures for the conduct of normal operation. Normal procedures associated with optional systems can be found in Section 9. Daily inspection Daily inspection is to be performed prior to the first flight of the day.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Check coolant level Check brake fluid level Check battery pole condition Check Bowden cables condition and attachment Inspect inside of cowling for signs of exhaust gas impingement, excessive heat, chaffing Inspect cowling attachments Re-install cowling Inspect all cowling fasteners being tight ...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL − Ignition - OFF − Avionics/Instruments - Check condition − Cockpit - Check for loose objects and condition − Loading - Check for weight and balance, securing − Master switch - ON − Avionics switch - ON −...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL − Engine cowling condition − Propeller, blades and spinner condition (no blade cracks, no leading edge protection damages) − Engine mount and exhaust manifold condition − Oil quantity check NOTE Oil level check requires to open the oil access hatch and remove the oil filler cap.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL − Vertical tail unit - condition of surface, attachment, free rudder movement (press tail down to have nose gear free), rudder stops, antenna − Horizontal tail unit - condition of surface, attachment, free elevator movement, elevator stops...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Normal procedures and check list 4.4.1 Before engine starting 1. Luggage secured / no loose objects in cabin 2. Rudder pedal position WARNING Adjusting of rudder pedals position during flight is PROHIBITED. Make sure the pedals are set symmetrically 3.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL 1. Circuit breakers CHECK 2. Master switch 3. Backup battery 4. PFD Wait for boot sequence and confirm fuel QTY matches with pre-flight visual check NOTE Fuel qty above 45liter (per tank) is indicated as “+45liter”.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL NOTE Oil pressure with a cold engine could be high. A maximum of 7bar is acceptable 15. Throttle adjust for smooth running at 2000 16. Choke Release after engine runs uniformly 17. Backup battery 18. Fuel Pump CAUTION The starter should be activated for a maximum of 10 sec., followed by 2...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 4.4.5 Taxiing Apply power and brakes as needed. Keep engine speed <2500 RPM until oil temperature reaches 50°C. Apply brakes to control movement on ground. Taxi carefully when wind velocity exceeds 20 knots (10 m/s).
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL 11. Fuel pump ON, check pressure 12. Fuel Selector set to LEFT fuel tank NOTE The engine fuel return line goes into the left fuel tank. Do not operate the engine with the fuel selector set to the right tank if the left tank is full.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL NOTE Take off or Landing with Autopilot active is not permissible 4.4.7 Take-off 1. Brakes release 2. Carburettor heat Closed 3. Propeller control full forward 4. Throttle full power check airspeed “alive” 5. Airspeed indication 6.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL No obstacle: best rate of climb (Flap 10°) 75 KIAS Obstacle: best angle of climb (Flap 10°) 64 KIAS 11. Trim adjust 12. Flaps retract at Vy 74 KIAS or at 150 ft 13. Fuel pump OFF (recom.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Note: engine fuel return line ONLY dumps to the left tank which means that while running on the right tank some fuel is transferred to left tank. This is amount 5liter/h and will cause that the total time on the left tank is higher than on the right tank.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 2. Touch down on main wheels 3. Flare minimum float 4. After touchdown stick release 5. Maximum braking 6. Retract flaps 4.4.14.2 Soft field landing: 1. Touch down on main wheels 2. Flare expect excessive ground friction.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Rapid engine cooling should be avoided during operation. This happens above all during aircraft descent, taxiing, low engine speed or at engine shutdown immediately after landing. Under normal conditions the engine temperatures stabilize during descent, taxiing and at values suitable to stop engine by switching the ignition off.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL INTENTIONALLY LEFT BLANK Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 4-17 Date of Issue: 15.04.2021...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction Section 5 provides approved data for airspeed calibration, stall speeds and take-off performance as well as non-approved additional information. The data in the charts has been computed from actual flight tests with the aeroplane and engine in good condition and using average piloting techniques.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.1.1 ISA Conversion The offset from ISA condition can be determined with actual outside temperature and pressure altitude using the following diagram. Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Conversion Pressure Altitude to Density Altitude Conversion Pressure Altitude to Density Altitude 5.1.2 Pressure to density altitude conversion P ro c e dure P ro c e dure Procedure: Procedure: A.) Lo c a te P re s s ure Altitude o n IS A c o nditio n line A.) Lo c a te P re s s ure Altitude o n IS A c o nditio n line...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Approved data 5.2.1 Airspeed indication system calibration The airspeed indication system error is only little depended on power setting and not noteworthy depended on flap setting. For low airspeed with engine idle as well as high speed (>100KIAS) and high power setting the error is less than 1 knot.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.2.2 Stall speeds Wing level stall speeds are based on flight testing. Turning flight stall speeds are computed from wing level stall speeds and load factor developed at turn. CONDITIONS: Wing flaps Altitude loss at...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.2.4 Take-off performance Take off distances are based on flight test at MTOW corrected for ISA/SL conditions. Conditions: Wind ................. NIL Runway .............. dry and level Flaps ..............Take-off 10° Brakes ........held while applying the power Throttle ................
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.2.5 Landing distances Landing distances are based on flight test at MTOW corrected for ISA/SL conditions. Conditions: Wind ................. NIL Runway .............. dry and level Flaps ..............Landing 25° Final approach speed ......... 58 KIAS...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.2.6 Climb performance Climb performance, Flaps 0° CAUTION MTOP (5800rpm) may be used for max 5min! Document No.: ADXC-73-001-AFM Approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Condition MCP Note: the shortest possible time to a given altitude requires permanent adjustment of airspeed along line of best rate of climb, see climb performance graph Condition MCP Note: the shortest possible distance to a given altitude requires...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Additional information 5.3.1 Cruise NOTE With manifold pressure at 29inHg engine speed may not be less than 5200 RPM With manifold pressure at 27inHg engine speed may not be less than 4650 RPM At 5000 RPM manifold pressure may not exceed 28.5inHg Document No.: ADXC-73-001-AFM...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.3.2 Endurance Conditions: No specific allowance of fuel burn for start-up and taxi Initial climb to altitude @ MCP (full throttle, 5500rpm) Initial climb-out at V Descent fuel flow 10l/h 30 minutes reserve (fuel flow corresponding to the range/endurance point) The range and endurance include the time/distance covered during climb Document No.: ADXC-73-001-AFM...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL NOTE With manifold pressure at 29inHg engine speed may not be less than 5200 RPM With manifold pressure at 27inHg engine speed may not be less than 4650 RPM At 5000 RPM manifold pressure may not exceed 28.5inHg Document No.: ADXC-73-001-AFM...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.3.4 Effect on flight performances and characteristics caused by rain or accumulation of insects. Performance data in this flight manual has been determined with an airplane in good condition but without surface painting. During flight test no noteworthy degradation due to wet or dirty aircraft has been noted neither in performance nor in flight characteristics.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.3.5 Demonstrated crosswind performance Maximum demonstrated crosswind speed: 9kts NOTE The stated cross wind component may or may not be limiting. Actual use of the airplane in high crosswind condition is subject to pilot skill.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 5.3.6 Noise data The noise level of the B23, according to ICAO Annex 16, Chapter X, amounts to 69.2dB(A). Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 5-17 Date of Issue: 15.04.2021...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL SECTION 6 WEIGHT AND BALANCE Introduction ............6-1 Definitions ............... 6-1 Airplane weighing procedure ........ 6-2 Empty aircraft weight and balance record ... 6-3 Loaded Aircraft Weight and CG ......6-4 Equipment list ............6-6 Document No.: ADXC-73-001-AFM...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction This section contains information about the aircraft empty weight and centre of gravity as well as the procedure for its determination. In addition, the method for determination of airplane operational weight and balance is given.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL CG-locations: Fuel ..................1.600 m Luggage in wing locker ............2.025 m Occupant ................2.085 m Luggage in lower aft area ........... 2.520 m Luggage in upper aft area ........... 2.800 m Airplane weighing procedure...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Empty aircraft weight and balance record The table is intended to record continuous history of weighings and changes of equipment affecting weight and balance. Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Loaded Aircraft Weight and CG Loaded aircraft weight and balance is determined by summing individual masses and moments and calculating according flight condition for actual fuel and zero fuel. Results shall be entered in the graph of permissible range.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL W&B envelope limits, see below MTOW MAX ZERO WING LOAD − ∗ 100; with MAC = 1.343m and MAC = 1.377m (%) MTOW MAX ZERO WING LOAD Document No.: ADXC-73-001-AFM...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Equipment list List of equipment installed in BRISTELL B23 Equipment Engine section Engine Rotax 912S3 (dry weight) 1 Req. 61.00 0.318 Propeller 1 Req. 10.00 -0.117 Governor Jihostroj P-110-051/A 1 Req. 1.000 0.246 El. Fuel pump 1 Req.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Equipment In front of instrument panel AEPS System (complete; if installed) 14.380 1.080 1 Req. alternatively AEPS mass balance 12.00 1015 Garmin engine indication GEA24 1 Req. 0.318 1.371 Garmin ADHARS GSU25C 1 Req. 0.235 1.504...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction This section provides description and operation of the aeroplane and its systems. Refer to Section 9, Supplements, for details of optional systems and equipment. Airframe The main airframe of Bristell B 23 aircraft is an aluminium metal riveted structure.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL The wing leading edges feature stall strips to provide benign stall characteristics. Stall strips are symmetric in spanwise extension, but not symmetric in placement along the cross section. 7.2.2 Fuselage The fuselage all-aluminium structure design is formed by bulkheads, stiffeners and surface sheets.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.2.3 Stabilizers, flaps and movable control surfaces The horizontal stabilizer is an all-metal structure consisting of two aluminium spars, eight ribs and aluminium skin. It is mounted on the fuselage by means of front and rear attachments. The front attachments consist of two pins - riveted on the second last bulkhead, and bushings - riveted on the front stabilizer spar.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Flight controls Control System consists of an aluminium pushrods system (machined bell cranks) with a steel torque tube for aileron and elevator. Rudder Control System consists of steel cable and pulley system. The rudder control is also used for nose gear steering in a closed loop system.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL fuselage under the instrument panel. Setting of the rudder pedals in flight is not permissible. Non-symmetric settings (i.e. left pedal back, right pedal front) is mechanically possible but not approved for flying. The pilot upon boarding shall check the correct symmetric pedal setting.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.4.1 Upper panel controls and indication On the upper centre panel annunciator lights are mounted from left to right • Dimmer for glareshield light • Dimmer for flap system and intercom LED and warning/caution/indication LED (not External power).
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.4.2 Left side instrument panel • Controls Back up battery: guarded switch, must be opened to activate Choke: pull & rotate ON / rotate & push OFF; Ignition switch: OFF/Left/Right/Both/Start • Features Vent outlet; rotate to open and close, adjust for comfort 7.4.3...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.4.5 Co-Pilot side controls • Park break: press pedals to break and pull to lock • Cabin Heat: pull for heat on. The cabin heat control must be close in case of engine fire or smoke.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.4.6 Right side instrument panel Circuit breakers: Features: • Vent outlet; rotate to open and close, adjust for comfort 7.4.7 Control sticks Both control sticks are equipped with buttons for: • PTT (at front) •...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Simultaneous use of trim from both pilot station stops the trim action. 7.4.8 Center console Below the center panel avionic stack and between the seats a number are a number of controls and features located: •...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL • USB power outlets, headset connectors and Bose headset power supply: are located aft of the glove box between the seat back rests. It is advised to perform any required plug-in or plug-out before boarding.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Landing gear system BRISTELL B 23 airplane landing gear is a three-wheel fixed design, that consists of the main landing gear and the nose landing gear. The nose landing gear is steerable. The main landing gear wheels are equipped with hydraulic disc brakes.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Cockpit lay-out, Seats and safety harness, Two seats are provided in side by side arrangement. Seats are Kevlar sandwich panels with leather upholstery. The seat pans are held in place by metal clips engaging to the main spar. The seat back rests are held in place by a combination of form fit on the lower end.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Baggage compartment The rear baggage compartment is located behind the seats. It may accommodate up to 15 kg (33 lb). This space is divided on two sections – baggage compartment A and B. It is prohibited to place heavy items into Baggage compartment B.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Cabin Access to the cockpit is from both sides after opening the canopy. The canopy is suspended on two hinges on the front side of the frame. It is opened fore-/upward. The opening movement is supported by gas springs on each side.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Powerplant Standard power unit of BRISTELL B 23 airplane is the ROTAX 912S engine and MTV-34 in flight adjustable 3-blade propeller. Both, engine (EASA-TCDS E.121) and propeller (EASA-TCDS P.049) are certified. 7.9.1 Engine ROTAX 912S is a 4 stroke, 4 opposed - cylinder engine, central cam shaft and OHV - mechanism with maximal power of 73.5 kW (98.6 hp) at...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL The propeller is driven through a gearbox which has a gearing ratio of 2.43. The propeller speed is 2386 prop RPM at an engine speed of 5800 engine RPM. The fuel consumption of the Rotax engine, dependent on throttle setting, rpm and altitude is up to a maximum of 30liter/hour.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL The thermal heat capacity of the engine will heat up all components located in the engine bay after engine shut down. In extreme hot conditions this can lead to vapor formation and a non-functioning fuel pump.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.9.2 Propeller The propeller MTV-34 is a three-blade in flight hydraulically adjustable wooden-composite propeller designed for light airplanes with piston engines with power up to 86 kW (115 hp) and max. propeller speed up to 2560 rpm.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.10 Fuel system Fuel is stored in two fuel tanks. The fuel tanks are integrated part of the wing. Their volume is 60 litres each. The tanks are located in the leading edge of the first third of the outer wing span in front of the main spar. The ribs and rear tank wall are structurally independent from the main spar and wing ribs.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Fuel quantity is measured by the fuel float gauges. The float position is converted to an electrical signal and fuel quantity in the tank is indicated on the PFD/MFD screens. The fuel system also provides an independent hard-wired low fuel warning light in the instrument panel (LED).
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL with fuel the amount in the tank equals to about 12 litres. Using a ruler or “Fuel Hawk” tube the actual quantity above 12 litres can be determined: The fuel vents end at the wingtips where a little scoop provides some RAM pressure.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.11 Electrical system The airplane is equipped with 14V DC electrical installations with grounded negative pole. Primary source of electrical power are two generators. The secondary source of electrical energy is a 12 V battery, located on the firewall.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Systems are protected by circuit breakers, which are permanently on. On the PILOT/ALT1 BUS also combined switches-circuit breakers are used. After switching the master switch on and by turning the ignition key to the “START” position the starter is activated. The starter is supplied from the battery.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Alternator caution is triggered by either an actual failure of the alternator but also by failure of the respective alternator control power supply. Therefore, the alternator caution also turns on when the alternator is not switched on.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL The correlation of consumers and supplying part of the bus system allows continued safe flight and landing with a partial bus system failure: Pilot/ALT1 Bus Consumer Batt/Alt2 Bus Avionic Bus Pitot Heat Strobe L. NAV L.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL The installed USB power outlets are intended for occupant personal electronic devices (PED) and can supply 1000mA and 2100mA as indicated on the outlet. The pilot is responsible for the compatibility of the PED with the aircraft on board system. In case of doubt: don’t use PED’s.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL NOTE: “Day” position for both dimmers is fully turned anti-clockwise Losing power on either bus and/or on the EIS CB leads to partial loss of the information. Restoring power by means of the Back-Up battery does restore the function of the EMS unit (GEA24), and the power input to the indication light control.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.11.3 External lighting External lights are individual selectable − Wing leading edge mounted landing lights − Wing tip mounted position lights incorporating also − Anti-collision lights All three types of light have their own circuit. In case of severe electric system failures partial external lighting can be restored after pulling the BUS-TIE CB, refer to chapter 7.11.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.11.4 External Power The functionality of the external power is limited to supply the engine starter motor and the indication light. The external power cannot be used for re-charging. The external power plug is located on the lower side of the firewall on the engine side left of the nose landing gear.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.12 Pitot and static pressure systems The Garmin GAP-26 Heated Pitot Tube with AOA (angle of attack) is located under the left wing. The total pressure is sensed through the hole in the pitot–tube face.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.13 Miscellaneous equipment 7.13.1 Stall warning system The stall warning employed on this airplane is programable in the G3X and uses AOA as well as normal and pitch acceleration (G3X system). It is set to warn the pilot of approaching stall at about 5kts above stall...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14 Avionics The Avionics system system installed in the B23 is compromised of panel mounted and remote mounted units of the G3X system as well as a stand alone L-3 EFIS. Common interface between the two systems are only pitot and static pressure sources.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.1 L-3 EFIS, L3 ESI-500 The L3 EFIS provides indication of knots indicated airspeed, heading, roll-pitch-attitude, vertical speed (ft), pressure altitude (ft) or optionally in meter (m), barometric correction, selected course for display and slip/skid information.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Pilot menu After pressing the menu button the menu points can be selected by the rotary switch and confirmed by pressing the rotary switch. The menu structure is: BATT Shutdown Data Field ▪ ▪ ▪...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Basic settings for operations Increase display brightness: When the pilot menu is not active, pressing and holding the menu button will increase the display brightness. Use the pitot menu item “Set brightness Offset” to adjust the brightness.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.2 Garmin PFD / MFD screens In this AFM only the basic features of the Garmin touch display installation are explained. For the full range of options, settings, flight planning and accessible information refer to the Garmin G3X pilot guide.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 7-40 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL NRST Key Press to display the Nearest Page for viewing the nearest airports, intersections, NDBs, VORs, waypoints, frequencies, and airspaces Direct-To Key Press to activate the Direct-To function, enter a destination waypoint and establish a direct-to course to the selected destination...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Stall warning, angle of attack indicator The AoA displays next the attitude indicator with increasing AoA, which output an aural warning when reaching the allowable AoA. The EIS indicates manifold pressure (inHg), engine speed (RPM), oil pressure (bar), oil temperature (°C), cylinder head temp.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.3 Garmin GMC 307-20 Autopilot control panel (optional) The GMC 307-20 is part of the Garmin AUTOMATIC FLIGHT CONTROL SYSTEMS (AFCS) and provides a user interface for the autopilot function of the G3X system. Aileron and elevator control and trim are interfaced by the AFCS.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL control stick (CWS), by pressing any trim button or by pressing the AP Key on the GMC 307. NOTE In case of trim system failure (loss of power to trim system) the AP disconnect by trim button is also inoperative Manual disengagement is indicated by a five-second flashing yellow ‘AP’...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Envelope protection, Electronic Stability & Protection (ESP-X) ESP monitor the aircraft and provide control input feedback when necessary to discourage operating the aircraft at potentially unsafe attitudes and/or airspeeds. If enabled (which is the default setting), this feature will automatically arm when the aircraft is above 500 feet AGL and the autopilot is not engaged, and disarm when below 200 feet AGL.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL 1) From the PFD, touch the Autopilot Status Box. The Automatic Flight Control System page is displayed. 2) Touch the ESP button on the Automatic Flight Control System page to enable/disable ESP. NOTE See Garmin G3X Touch Pilots Guide for details and further features:...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.4 Garmin GNC 255 COM/NAV The GNC 255 COM/NAV combines VHF communications transceiver and VOR. Besides traditional NAV/COM features, the GNC 255 also incorporates workload-reducing functions such as automatic decoding of the Morse code station identifier for VOR/LOC, most-used frequency storage in memory, built-in course deviation indicator, and more.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Selecting a COM frequency Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 7-48 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Monitoring the Standby Channel Saving a COM Channel Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 7-49 Date of Issue: 15.04.2021...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.5 Garmin GTX 345 transponder The GTX 345 includes ADS-B In functionality, when connected to a suitable display. GTX 345 Features: • ADS-B Out • Dual-band ADS-B In traffic display output and aural alerting •...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL 7.14.6 Intercom A PM3000 Intercom is installed. Basic operations The volume control knob adjusts the loudness of the intercom and does not affect the volume level of the aircraft radio. By turning the control clockwise, the audio level will increase simultaneously.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Abnormal occurrences In case of failure of the intercom power supply normal radio transmission and reception on the pilot side is still possible. However, this functions not in stereo but only on one channel of the headset Document No.: ADXC-73-001-AFM...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL INTENTIONALLY LEFT BLANK Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 7-53 Date of Issue: 15.04.2021...
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction This section contains factory-recommended procedures for proper ground handling and servicing of the aeroplane. It also identifies certain inspection and maintenance requirements which must be followed if the aeroplane is to retain that new-plane performance and dependability. It is wise to follow a planned schedule of lubrication and preventive maintenance based on climatic and flying conditions encountered.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Aeroplane alterations or repairs Alterations or repair are no pilot action! It is essential that all alterations on the aeroplane are based on approved data and executed by authorized personnel and organizations to ensure that airworthiness of the plane is not violated.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Ground handling 8.4.1 Towing To handle the airplane on the ground, use the Tow Bar, or the fuselage rear pushed down in the place of a bulkhead. CAUTION Avoid excessive pressure at the airplane airframe-especially at control surfaces.
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL 8. Moor the aircraft to the ground by means of a mooring rope passed through the tie-down points. NOTE In case of long term parking, especially during winter, it is recommended: * to cover the cockpit canopy or possibly the whole aircraft by means of a suitable tarpaulin attached to the airframe.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL Cleaning and care 8.5.1 Painted exterior surfaces Use efficient cleaning detergents to clean the aircraft surface. Oil spots on the aircraft surface (except the canopy!) may be cleaned with gasoline. The canopy may only be cleaned by washing it with a sufficient quantity of lukewarm water and an adequate quantity of detergents.
AIRCRAFT FLIGHT BRISTELL B23 MANUAL SECTION 9 SUPPLEMENTS Introduction ............9-1 List of supplements ..........9-2 Supplements inserted ..........9-3 Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Introduction This section contains the appropriate supplements necessary to safely and efficiently operate the aeroplane when equipped with various optional systems and equipment not provided with the standard aeroplane. Document No.: ADXC-73-001-AFM Non-approved page Revision: A2...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL List of supplements Installed in this SN? Date Doc. No. & issue Title supplement (x =yes; − =no) Supplement ADxC-73-004 AFM 27.01.2021 Air Traffic AT-1 Revision A Flight hours meter ADxC-73-010-AFM Supplement 24.02.2021 Revision A...
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AIRCRAFT FLIGHT BRISTELL B23 MANUAL Supplements inserted Document No.: ADXC-73-001-AFM Non-approved page Revision: A2 Date of Issue: 15.04.2021...
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