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Roko Aero NG 4 ML Operating Instructions Manual

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THIS MANUAL TO BE KEPT IN AIRCRAFT.
AEROSPORT AVIATION PTY LTD, MELBOURNE, AUSTRALIA.
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phone.: +420 577 011 441 fax: +420 577 011 576www.rokoaero.com
NG4-LSA
REGISTRATION 24-7357
SR No. 001/2008
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  • Page 1 THIS MANUAL TO BE KEPT IN AIRCRAFT. NG4-LSA AEROSPORT AVIATION PTY LTD, MELBOURNE, AUSTRALIA. REGISTRATION 24-7357 SR No. 001/2008 Ě Ě Á Ý Á Ý phone.: +420 577 011 441 fax: +420 577 011 576www.rokoaero.com...
  • Page 2 SECTION 0 0. TECHNICAL INFORMATION 0.1 Record of revisions 0.2 List of effective pages 0.3 Table of contents...

  • Page 3: Table Of Contents

    0.3 Table of contents Section TECHNICAL INFORMATION ............. 0 GENERAL INFORMATION ............1 OPERATING LIMITATIONS ............2 EMERGENCY PROCEDURES ..........3 NORMAL PROCEDURES ............4 PERFORMANCE ............... 5 WEIGHT AND BALANCE ............6 AIRPLANE AND SYSTEMS DESCRIPTION ......7 AIRPLANE HANDLING,SERVICING AND MAINTENANCE ..8 REQUIRED PLACARDS AND MARKINGS .......

  • Page 4: General Information

    SECTION 1 1. GENERAL INFORMATION 1.1 Introduction 1.2 Warnings, cautions and notes 1.3 Descriptive data 1.3.1 Aircraft description 1.3.2 Powerplant 1.3.3 Aircraft dimensions 1.3.4 Aircraft layout 1.4 Definitions and abbreviations Date of Issue: 04/2008 Revision: 1.0...
  • Page 5 1.1 Introduction NG 4 ML is a Light Sport Aircraft designed and built in ROKO AERO a.s., Uherský Brod, Czech Republic, based on FAA Light Sport Aircraft (LSA) category according to ASTM Standards F2245, F2279 and F 2295. This Aircraft Operating Instruction has been prepared to provide pilots with information for the safe and efficient operation of NG 4 ML aircraft.

  • Page 6: Descriptive Data

    1.3 Descriptive data 1.3.1 Aircraft description NG 4 ML is airplane intended especially for recreational and cross-country flying, non-aerobatics operation and basic training. NG 4 ML is a single-engine, all metal, low-wing monoplane of semi- monocoque construction with two side-by-side seats. The airplane is equipped with a fixed tricycle undercarriage with stearable nose wheel.
  • Page 7 1.3.4 Aircraft layout Date of Issue: 04/2008 Revision: 1.0...

  • Page 8: Definitions And Abbreviations

    1.4 Definitions and abbreviations Air Traffic Control Airspeed Indicator BEACON anti-collision beacon Calibrated Airspeed COMM communication transmitter EFIS Electronic Flight Instrument System Emergency Locator Transmitter Engine Monitoring System °F temperature in degree of Fahrenheit foot / feet ft/min feet per minute Global Positioning System power unit Indicated Airspeed...
  • Page 9 Outside Air Temperature Pilot Operating Handbook pound per square inch - pressure unit revolutions per minute sec. second US gal volume unit Visual Flight Rules Visual Meteorological Conditions maneuvering airspeed maximum flap extended speed maximum designed cruising speed never exceed speed stall speed with wing flaps in extended position stall speed with wing flaps in retracted position best angle of climb speed...

  • Page 10: Operating Limitations

    SECTION 2 2. OPERATING LIMITATION Introduction Airspeed Airspeed Indicator Markings Powerplant 2.4.1 Engine operating speeds and limits 2.4.2 Fuel 2.4.3 2.4.4 Coolant Powerplant Instrument Markings Miscellaneous Instrument Markings Weight Center of Gravity Approved Maneuvers 2.10 Maneuvering Load Factors 2.11 Crew 2.12 Kinds of Operation 2.13 Other Limitations Date of Issue: 04/2008...
  • Page 11 2.1 Introduction Section 2 includes operating limitations, instrument markings and basic placards necessary for the safe operation of the aircraft, its engine, standard systems and standard equipment. 2.2 Airspeed Airspeed limitations and their operational significance are shown below: Speed KIAS Remarks Never exceed Do not exceed this speed in any...

  • Page 12: Airspeed Indicator Markings

    2.3 Airspeed indicator markings Airspeed indicator markings and their color-code significance are shown below: IAS value or range Marking Significance KIAS White 30-75 Flap Operating Range. Green 36-129 Normal Operating Range. Yellow Maneuvers must be conducted with 129-145 caution and only in smooth air. Red line Maximum speed for all operations.
  • Page 13 Powerplant 2.4.1 Engine operating speeds and limits Engine Model: ROTAX 912 ULS Engine Manufacturer: Bombardier-Rotax GMBH 98.6 hp Max Take-off: at 5800 rpm, max.5 min. 92.5 hp Max. Continuous: at 5500 rpm 68.4 hp Cruising: at 5000 rpm Max. Take-off: 5800 rpm, max.
  • Page 14 2.4.2 Fuel This fuel can be used: (refer to engine Operator’s Manual) - min. RON 95, EN 228 Premium, EN 228 Premium plus, AVGAS100LL - Fuel according to FAA - Standard Spec. for Automotive Spark- Ignition Engine Fuel, ASTM D 4814 or AVGAS 100 LL - Fuel according to DOT - CAN/CGSB-3.5 Quality 3 min AKI 91 or AVGAS 100 LL, 93 Octane Automotive Fuel Due to higher lead content in AVGAS, the wear of the valve seats...

  • Page 15: Powerplant Instrument Markings

    NOTE: Type of coolant used by aircrafts manufacturer is shown in Section 10 Supplement No.2. Coolant liquid volume: It is about ........2,5 ltr 2.4.5 Powerplant instrument markings Analogue engine instruments markings and their color-code significance are shown below Normal Minimum Caution Maximum...
  • Page 16 Miscellaneous Instrument Marking Note: There are not any miscellaneous instrument marking Date of Issue: 04/2008 Revision: 1.0...

  • Page 17: Approved Maneuvers

    2.7 Center of gravity Operating C.G. range .......... 25 to 35 % of MAC 2.8 Approved maneuvers Airplane Category: LSA The NG 4 ML is approved for normal and below listed maneuvers: Steep turns not exceeding 60° bank Lazy eights Chandelles...

  • Page 18: Kinds Of Operation

    2.10 Crew Number of seats ..........2 Minimum crew ..........1 pilot in the left seat Minimum crew weight ........55 kg Maximum crew weight ........see SECTION 6 WARNING Do not exceed maximum take-off weight 600 kg ! 2.11 Kinds of operation There are permitted Day VFR flights, Night VFR flights are permitted with installation of optional Night Lighting Package and operation by an appropriate rated pilot.

  • Page 19: Emergency Procedures

    SECTION 3 3. EMERGENCY PROCEDURES 3.1 Introduction 3.2 Engine Failure 3.2.1 Engine failure during take-off run 3.2.2 Engine failure during take-off 3.2.3 Engine failure in flight 3.3 In-flight Engine Starting 3.4 Smoke and Fire 3.4.1 Fire on ground at engine starting 3.4.2 Fire on ground with engine running 3.4.3...
  • Page 20 3.1 Introduction Section 3 provides checklists and amplified procedures for coping with various emergencies that may occur. Emergencies caused by aircraft or engine malfunction are extremely rare if proper pre-flight inspections and maintenance are practiced. However, should an emergency arise, the basic guidelines described in this section should be considered and applied as necessary to correct the problem.
  • Page 21 3.2.3 Engine failure in flight 1. Push control stick forward 2. Speed - gliding at 65 KIAS 3. Altitude - below 150 ft: land in take-off direction - over 150 ft: choose a landing area 4. Wind - find direction and velocity 5.
  • Page 22 3.4 Smoke and Fire 3.4.1 Fire on ground at engine starting 1. Starter - keep in starting position 2. Fuel Selector - close 3. Throttle - full power 4. Ignition - switch off 5. Leave the airplane 6. Extinguish fire by fire extinguisher or call for a fire-brigade if you cannot do it.
  • Page 23 3.4.4 Fire in flight 1. Heating - close 2. Fuel Selector - close 3. Throttle - full power 4. Master switch - switch off 5. Ignition - switch off after the fuel in carburetors is consumed and engine shut down 6.
  • Page 24 3.5 Glide An example of the use of gliding is in the case of engine failure 1. Speed - recommended gliding speed 65 KIAS 3.6 Landing Emergencies 3.6.1 Emergency landing Emergency landings are generally carried out in the case of engine failure and the engine cannot be re-started.
  • Page 25 6. Reduce power to idle when flying over the runway threshold and touch-down at the very beginning of the chosen area. 7. After stopping the airplane switch off all switches, shut off the fuel selector, lock the airplane and seek for assistance. NOTE Watch the chosen area steadily during precautionary landing 3.6.3 Landing with a flat tire...
  • Page 26 3.7 Recovery from Unintentional Spin WARNING Intentional spins are prohibited! There is no an uncontrollable tendency of the airplane to enter into a spin provided the normal piloting techniques are used. Unintentional spin recovery technique: 1. Throttle idle 2. Lateral control ailerons neutralized 3.

  • Page 27: Other Emergencies

    3.8 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. 2. To land on the nearest airfield or to perform a precautionary landing according to 3.6 3.8.2 Carburetor icing The carburetor icing shows itself through a decrease in engine power...

  • Page 28: Normal Procedures

    SECTION 4 4. NORMAL PROCEDURES 4.1 Introduction 4.2 Assembly and Disassembly 4.3 Pre-flight Inspection 4.4 Normal Procedures 4.4.1 Before engine starting 4.4.2 Engine starting 4.4.3 Engine warm up, Engine check 4.4.4 Taxiing 4.4.5 Before take-off 4.4.6 Take-off 4.4.7 Climb 4.4.8 Cruise 4.4.9 Descent...
  • Page 29 Section 4 provides checklists and recommended procedures for normal operation of the aircraft. 4.2 Assembly and Disassembly Refer to the NG 4 ML Maintenance and inspection procedures manual. 4.3 Pre-flight Inspection Carry out the pre-flight inspection every day prior to the first flight or after airplane assembly.
  • Page 30 The manufacturer recommends carrying out the pre-flight inspection as follows: Date of Issue: 04/2008 Revision: 1.0...
  • Page 31 Inspection Check List  Ignition - OFF Master switch - ON Fuel gauge ind. - check fuel quantity Master switch - OFF Avionics - check condition Control system - visual inspection, function, clearance, free movement up to stops - check wing flaps operation Canopy - condition of attachment, cleanness Check cockpit for loose objects...
  • Page 32 WARNING Physically check the fuel level before each takeoff to make sure you have sufficient fuel for the planned flight. CAUTION In case of long-term parking it is recommended to turn the engine several times (Ignition OFF!) by turning the propeller. Always handle the blade area by the palm i.e.
  • Page 33 4.4 Normal procedures 4.4.1 Before engine starting Control system - free & correct movement Canopy - clean Brakes - fully applied Safety harness - tighten 4.4.2 Engine starting Start the engine according to its manual procedure Master switch - switch on Fuel Selector - on Choke (cold engine)
  • Page 34 4.4.3 Engine warm up, Engine check Prior to engine check block the main wheels using chocks. Initially warm up the engine to 2000 rpm for approx. 2 minutes, then continue to 2500 rpm till oil temperature reaches 122°F. The warm up period depends on ambient air temperature.
  • Page 35 4.4.5 Before take-off Altimeter - set Trim - set neutral position Control system - check free movement Cockpit canopy - closed Safety harness - tighten Fuel Selector - on (select tank) Ignition - switched on Wing flaps - extend as needed 4.4.6 Take-off Brakes - apply to stop wheel rotation...
  • Page 36 4.4.7 Climb 1. Best rate-of-climb speed - 70 KIAS 2. Throttle - Max. take-off power (max. 5800 rpm for 5 minutes) - Max. cont.power 5500 rpm 3. Trim - trim the airplane 4. Instruments - oil temperature and pressure, cylinder temperature within limits CAUTION If the cylinder head temperature or oil temperature approach their limits, reduce the climb angle to decrease airspeed and thus fulfill the...
  • Page 37 4.4.11 Balked Landing 1. Throttle - full power (max.5800 rpm) 2. Wing flaps - extend as needed 3. Trim - adjust as needed 4. Wing flaps - retract at height of 150 ft after reaching 65 KIAS 5. Trim - adjust 6.
  • Page 38 4.4.15 Aircraft parking and tie-down Ignition check - OFF Master switch check - OFF Fuel selector - OFF Parking brake - use it as necessary (if installed) Canopy - close, lock as necessary Secure the airplane NOTE It is recommended to use parking brake (if installed) for short-time parking only, between flights during a flight day.

  • Page 39: Performance

    SECTION 5 5. PERFORMANCE 5.1 Introduction 5.2 Performance 5.2.1 Airspeed indicator system calibration 5.2.2 Stall speeds 5.2.3 Take-off performance 5.2.4 Landing distances 5.2.5 Climb performance 5.2.6 Cruise 5.2.7 Endurance and Range 5.2.8 Demonstrated crosswind performance 5.2.9 Optimum glide speed 5.2.10 Ceiling...
  • Page 40 5.1 Introduction Section 5 provides data for airspeed calibration, stall speeds, take-off performance and additional information. The presented data has been computed from actual flight tests with the aircraft and engine in good conditions and using average piloting techniques. If not stated otherwise, the performance stated in this section is valid for maximum take-off weight and under ISA conditions.
  • Page 41 5.2 Performance 5.2.1 Airspeed indicator system calibration KIAS KCAS...
  • Page 42 5.2.2 Stall speeds Conditions: Altitude loss Wing Max.take-off at recovery flaps KIAS KCAS weight pos. [ft] Engine idle run 0° Wing level stall 15° 35° 37,5 0° 47,5 Co-ordinated turn 15° 30° bank 35° 5.2.3 Take-off performance Take-off Take-off run distance over RUNWAY distance...
  • Page 43 5.2.4 Landing distances Landing Landing run distance over distance RUNWAY 15 m obstacle (braked) SURFACE PAVED GRASS 5.2.5 Climb performance Conditions: Best rate-of-climb speed Max.Continuous Power - 5500 rpm KIAS [fpm] Weight - 1320 lbs 0 ft ISA 1500 1050 3000 ft ISA 6000 ft ISA 9000 ft ISA...
  • Page 44 5.2.6 Cruise Airspeed Altitude Engine speed [rpm] [ft ISA] KIAS KCAS 4500 4800 5000 5300 5500 5800 4500 4800 5000 3000 5300 5500 5800 4500 4800 5000 6000 5300 5500 5800 4500 4800 5000 9000 5300 5500...
  • Page 45 5.2.7 Endurance and Range The table below shows fuel consumption, endurance and range Altitude [ft ISA] 3000 ft Fuel quantity [ltr] Engine speed [rpm] 4500 4800 5000 5300 5500 Fuel [l/h] consumption KIAS Airspeed KCAS [hh:mm] Endurance 10:50 09:17 08:40 07:13 06:30 Range...

  • Page 46: Weight And Balance

    SECTION 6 6. WEIGHT AND BALANCE 6.1 Introduction 6.2 Weight and Balance Records 6.3 Permitted payload range Date of Issue: 04/2008 Revision: 1.0...
  • Page 47 6.1 Introduction This section contains the payload range within which the NG 4 ML may be safely operated. Procedures for weighing the aircraft and the calculation method for establishing the permitted payload range are contained in last revision of FAA Aviation Advisory Circular AC.43.13 - 1B Date of Issue: 04/2008 Revision: 1.0...

  • Page 48: Weight And Balance Record

    6.2 Weight and Balance Record Equipment list: WOODCOMP SR 3000 CONSTANT SPEED PROPELLER EFIS D 100 EMS D 120 GPS GARMIN 296 B/K KY 97A + AV 10 GARMIN GTX 327 + AK 350 + AV 22 ASI, ALT, VCC DUAL BRAKES PARKING BRAKE ADJUSTABLE PEDALS...
  • Page 49 Empty Weight C.G. Check WEIGHT MOMENT ITEM (kg) (WEIGHTxARM) RIGHT MAIN = 120,6 = 0,79 95,274 WHEEL LEFT MAIN = 124,4 0,79 98,276 WHEEL = - 0,785 = 103 - 80,855 NOSE WHEEL (negative arm) Aircraft moment: Empty Weight: CG= 0,323 m COMPUTED CG EMPTY = 348 kg...
  • Page 50 WEIGHT MOMENT (kg) (WEIGHTxARM) PILOT PASSENGER BAGGAGE COMPARTMENT - A BAGGAGE COMPARTMENT - B WING LOCKERS 0,65 FUEL TANKS 0,20 TOTAL Take-Off Weight: % MAC Max.Take-off Weight: 600 kg Serial No: 001/2008 CG Range: 24 – 35 % Date: 2008-04-26 Milan Bristela Maximum useful weight: = 600 kg W...
  • Page 51 WEIGHT & BALANCE REPORT Forward C.G. Check WEIGHT MOMENT ITEM (kg) (WEIGHTxARM) RIGHT MAIN = 120,6 = 0,79 95274 WHEEL LEFT MAIN = 124,4 = 0,79 95274 WHEEL = - 0,785 NOSE WHEEL = 103 - 80855 (negative arm) Aircraft moment: Empty Weight: CG= 0,323m COMPUTED CG...
  • Page 52 WEIGHT MOMENT (kg) (WEIGHTxARM) PILOT PASSENGER BAGGAGE COMPARTMENT - A BAGGAGE COMPARTMENT - B WING LOCKERS FUEL TANKS 19,6 TOTAL W= 153 52,6 CG= 0,329 m Take-Off Weight: 501 kg % MAC Max.Take-off Weight: 544 kg Serial No: 001/2008 CG Range: 24 - 35 % Date: 2008-04-26 Milan Bristela...
  • Page 53 WEIGHT & BALANCE REPORT Rear C.G. Check WEIGHT MOMENT ITEM ( kg) (WEIGHTxARM) RIGHT MAIN = 120,6 = 790 95,274 WHEEL LEFT MAIN = 124,4 98,276 WHEEL NOSE WHEEL = 103 - 80855 (negative arm) Empty Weight: CG= 0,323 m Aircraft moment: COMPUTED CG EMPTY...
  • Page 54 WEIGHT MOMENT (kg) (WEIGHTxARM) PILOT PASSENGER BAGGAGE COMPARTMENT - A BAGGAGE COMPARTMENT - B WING LOCKERS 0,65 FUEL TANKS 0,20 TOTAL W = 196 128,4 CG= 0,443 m 544 kg Take-Off Weight: 35 % MAC Max.Take-off Weight: 544 kg Serial No: 001/2008 Date: 2008-04-26 CG Range: 24 –...
  • Page 55 WEIGHT & BALANCE REPORT Blank form WEIGHT MOMENT ITEM (kg) (WEIGHTxARM) RIGHT MAIN WHEEL LEFT MAIN WHEEL NOSE WHEEL (negative arm) Aircraft moment: Empty Weight: COMPUTED CG EMPTY % MAC Date of Issue: 04/2008 Revision: 1.0 6-10...
  • Page 56 WEIGHT MOMENT (kg) (WEIGHTxARM) PILOT PASSENGER BAGGAGE COMPARTMENT - A BAGGAGE COMPARTMENT - B WING LOCKERS 0.65 FUEL TANKS TOTAL Take-Off Weight: % MAC Max.Take-off Weight: 544 kg Registration: Serial No.: CG Range: 24 – 35 % Date: Maximum useful weight : = 600 kg –...
  • Page 57 This page was printed for 544kg in NZ- Aircraft is rated at 600kg in Australia. 6.3 Permitted payload range at 544 kg- not 600 kg. Permitted payload range of NG 4 ML SN: 60 min GAUGES TOGETHER USgal 15,8 23.7...

  • Page 58: Airplane And Systems Description

    SECTION 7 7. AIRPLANE AND SYSTEMS DESCRIPTION 7.1 Introduction 7.2 Airframe 7.3 Control System 7.4 Landing Gear 7.5 Seats and Safety harness 7.6 Baggage Compartment 7.7 Canopy 7.8 Powerplant 7.9.1 Throttle and Choke 7.9.2 Carburetor pre-heating 7.9.3 Heating 7.9 Fuel system 7.10 Electrical system 7.11.1 Battery 7.11.2 Master switch...

  • Page 59: Control System

    Introduction This section provides description and operation of the aircraft and its systems. Airframe All-metal construction, stressed skin, single curvature metal skins riveted to stiffeners. Construction is of 6061-T6 aluminum sheet metal riveted to aluminum angles with Avex rivets. This high strength aluminum alloy construction provides long life and low maintenance costs thanks to its durability and corrosion resistance characteristics.

  • Page 60: Landing Gear

    7.8 Powerplant Engine: ROTAX 912 ULS engine 98.6 hp is installed in NG 4 ML. Rotax 912 ULS is 4-stroke, 4 cylinder, horizontally opposed, spark ignition engine with one central camshaft-push-rod-OHV. Liquid cooled cylinder heads, ram air cooled cylinders.
  • Page 61 Dry sump forced lubrication. Dual contactless capacitor discharge ignition. The engine is fitted with an electric starter, AC generator and mechanical fuel pump. Prop drive via reduction gear with integrated shock absorber. Propeller: - standard WOODCOMP KLASSIC 170/3/R. NOTE For technical data refer to documentation supplied by the propeller manufacturer 7.8.1 Throttle and Choke...

  • Page 62: Fuel System

    7.9 Fuel system Wing tanks volume 2 x 65 ltr. Each tank is equipped with a vent outlet and screen filter. Drain valve located in the lowest point of the each tank and on the bottom edge of the firewall, on the gascolator. Main fuel selector valve is on the central console in the cockpit.

  • Page 63: Instruments And Avionics

    7.11 Pitot and static pressure system Pitot Tube is located below the left wing. Pressure distribution to the instruments is through flexible plastic hoses. Static port is located in center section of wing close to rib # 1 between the spars. Keep the pitot head clean to ensure proper function of the system.
  • Page 64 7.14 Cockpit 7.14.1 Photo of the cockpit Date of Issue: 04/2008 Revision: 1.0...
  • Page 65 7.14.2 Description of equipment and controls in the cockpit Ignition switch Choke EFIS D 100 Flap position indicators Aileron trim indicator 12 V Socket Elevator trim indicator Fuel selector valve Vertical card compass Constant speed propeller Bendix King KY 97A radio Heating Garmin GPS 296 Heating devider flap...

  • Page 66: Airplane Handling,Servicing And Maintenance

    SECTION 8 8. AIRPLANE HANDLING, SERVICING AND MAINTENANCE 8.1 Introduction 8.2 Aircraft Inspection Periods 8.3 Aircraft Alterations or Repairs 8.4 Ground Handling 8.4.1 Towing 8.4.2 Parking 8.4.3 Mooring 8.4.4 Jacking 8.4.5 Road transport 8.5 Cleaning and Care Date of Issue: 04/2008 Revision: 1.0...

  • Page 67: Ground Handling

    8.1 Introduction This section contains factory-recommended procedures for proper ground handling and servicing of the airplane. It also identifies certain inspection and maintenance requirements, which must be followed if the airplane is to retain that new-plane performance and dependability. 8.2 Aircraft inspection periods Periods of overall checks and contingent maintenance depends on the condition of the operation and on overall condition of the airplane.
  • Page 68 8.4.2 Parking It is advisable to park the airplane inside a hangar or alternatively inside any other suitable space (garage) with stable temperature, good ventilation, low humidity and dust-free environment. It is necessary to moor the airplane when it is parked outside a hangar. Also when parking for a long time, cover the cockpit canopy, possibly the whole airplane by means of a suitable tarpaulin.

  • Page 69: Cleaning And Care

    By pushing the fuselage rear section down in the place of a bulkhead the fuselage front section may be raised and then supported under the firewall. By holding the fuselage rear section under a bulkhead the fuselage rear may be raised and then supported under that bulkhead. To lift up a wing, push from underneath that wing only at the main spar area.

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