Diamond Aircraft HK 36 TC Flight Manual
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Diamond Aircraft HK 36 TC Flight Manual

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  • Page 2 Flight Manual 0.1 PREFACE Congratulations on your choice of the HK 36 TC powered sailplane. Skillful operation of a powered sailplane will ensure your safety and provide you with hours of enjoyment. Therefore, you should take the time to get familiar with your new HK 36 TC.
  • Page 4 HK 36 TC with Rotax 912 S3 Introduction Flight Manual Rev. Reason Chap- Page(s) Date of EASA Date Signature Revision Approval verification Inserted Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 0 - 3...
  • Page 5 HK 36 TC with Rotax 912 S3 Introduction Flight Manual 0.3 LIST OF EFFECTIVE PAGES Page Date Page Date 06 Oct 2003 06 Oct 2003 06 Oct 2003 EASA-appr. 06 Oct 2003 06 Oct 2003 EASA-appr. 06 Oct 2003 06 Oct 2003 EASA-appr.
  • Page 6 HK 36 TC with Rotax 912 S3 Introduction Flight Manual Page Date Page Date EASA-appr. 4-21 06 Oct 2003 06 Oct 2003 EASA-appr. 4-22 06 Oct 2003 06 Oct 2003 EASA-appr. 4-23 06 Oct 2003 06 Oct 2003 EASA-appr. 4-24...
  • Page 7 HK 36 TC with Rotax 912 S3 Introduction Flight Manual 0.4 TABLE OF CONTENTS Chapter GENERAL (a non-approved chapter) ......... 1 OPERATING LIMITATIONS (an approved chapter) .

  • Page 8: Table Of Contents

    HK 36 TC with Rotax 912 S3 General Flight Manual CHAPTER 1 GENERAL Page 1.1 INTRODUCTION ......... 1-2 1.2 CERTIFICATION BASIS .

  • Page 9: Introduction

    This must always be kept onboard the powered sailplane. 1.2 CERTIFICATION BASIS The HK 36 TC powered sailplane with Rotax 912 S engine has been type certified by Austro Control GmbH (ACG) in accordance with Change 5 of JAR-22 for sailplanes and powered sailplanes as a derivative of the HK 36 TC.

  • Page 10: Warnings, Cautions And Notes

    HK 36 TC with Rotax 912 S3 General Flight Manual 1.3 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 in flight safety.

  • Page 11: Explanations And Abbreviations

    HK 36 TC with Rotax 912 S3 General Flight Manual 1.4 EXPLANATIONS AND ABBREVIATIONS a) Airspeeds Indicated Airspeed. Airspeed read on airspeed indicator without any correction of errors. Calibrated Airspeed. Indicated airspeed, corrected for installation and instrument errors. True Airspeed. The speed of the powered sailplane relative to the air.
  • Page 12 HK 36 TC with Rotax 912 S3 General Flight Manual c) Mass and balance Non-lifting parts Fuselage, rudder, horizontal tail surfaces and useful load Useful load Occupants, baggage and fuel d) Miscellaneous Anti Collision Light (Strobe Light) Above Ground Level...

  • Page 13: Units Of Measurement

    HK 36 TC with Rotax 912 S3 General Flight Manual 1.5 UNITS OF MEASUREMENT Dimension SI Units US Units Conversions Length [mm] millimeters [in] inches [mm] / 25.4 = [in] meters [ft] feet [m] / 0.3048 = [ft] [km] kilometers...

  • Page 14: Descriptive Data

    Flight Manual 1.6 DESCRIPTIVE DATA The HK 36 TC is a two-seated powered sailplane in fiber-composite structure, de- signed in compliance with JAR-22; Category of Airworthiness: Utility. It is a low wing powered sailplane with T-tail, side-by-side seating configuration, tricycle landing gear and Schempp-Hirth type air brakes in the upper surface of the wings.

  • Page 15: Three-View Drawings

    HK 36 TC with Rotax 912 S3 General Flight Manual 1.7 THREE-VIEW DRAWINGS Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 1 - 8...
  • Page 16 HK 36 TC with Rotax 912 S3 General Flight Manual Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 1 - 9...
  • Page 17 HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations CHAPTER 2 OPERATING LIMITATIONS Page 2.1 INTRODUCTION ......... 2-2 2.2 AIRSPEED .

  • Page 18: Introduction

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.1 INTRODUCTION Chapter 2 includes operating limitations, instrument markings, and basic placards necessary for the safe operation of the powered sailplane, its engine, standard sys- tems and standard equipment.

  • Page 19: Airspeed

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.2 AIRSPEED NOTE The airspeeds shown below must be understood as IAS. 2.2.1 AIRSPEED LIMITATIONS Airspeed limitations and their operational significance are shown below: Airspeed Remarks km/h Never exceed...
  • Page 20 HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations WARNING In order to ensure the flutter safety of the powered sail- plane, the never exceed speed v (IAS) is reduced at pres- sure altitudes above 2000 meters or 6500 ft (see Paragraph 4.5.7 HIGH ALTITUDE FLIGHT).

  • Page 21: Miscellaneous Airspeeds

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.2.2 MISCELLANEOUS AIRSPEEDS Airspeed Remarks km/h At this airspeed, the powered sailplane climbs with the maximum possible rate Best rate-of- of climb. climb speed This airspeed is marked on the air- speed indicator with a blue radial line.

  • Page 22: Airspeed Indicator Markings

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.3 AIRSPEED INDICATOR MARKINGS Airspeed indicator markings and their color-code significance are shown below: Value or Range (IAS) Marking Significance km/h Normal operating range. green Lower limit is 1.1 v at max.

  • Page 23: Power-Plant, Fuel And Oil

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.4 POWER-PLANT, FUEL AND OIL 2.4.1 ENGINE Engine manufacturer ... . . Bombardier Rotax, Gunskirchen, Austria Engine ......Rotax 912 S3...

  • Page 24: Engine Oil

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.4.2 ENGINE OIL Oil temperature Minimum Oil Temperature ..50 EC (122 °F) Maximum Oil Temperature ..130 EC (266°F) Oil pressure Minimum oil pressure .
  • Page 25 HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 2 - 9...

  • Page 26: Fuel

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.4.3 FUEL Fuel capacity Standard tank ....55 liters (14.5 US gal) Long range tank .

  • Page 27: Power-Plant Instrument Markings

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.5 POWER-PLANT INSTRUMENT MARKINGS Power-plant instrument markings and their color-code signification are shown below: Instrument Red Line Green Arc Yellow Arc Red Line Minimum Normal Caution Range Maximum Limit...

  • Page 28: Mass (Weight)

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.6 MASS (WEIGHT) Maximum take-off mass ... 770 kg (1698 lb) Maximum landing mass ... 770 kg (1698 lb) Maximum mass of all non-lifting parts .

  • Page 29: Center Of Gravity

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.7 CENTER OF GRAVITY The datum plane for the center of gravity (CG) specifications lies perpendicular to the center axis of the conical fuselage tube. It contacts the wing leading edge at the root rib to define its position in longitudinal direction.

  • Page 30: Maneuvering Load Factors

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.9 MANEUVERING LOAD FACTORS Table of maximum permissible load factors: with air brakes at v at v extended positive 5.30 4.00 3.50 negative -2.65 -1.50 0.00 WARNING Exceeding the maximum permissible load factors can over- stress the powered sailplane.

  • Page 31: Minimum Equipment List

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.12 MINIMUM EQUIPMENT LIST Minimum equipment (VFR operation) 1 Altimeter 1 Airspeed indicator 1 Magnetic compass 1 Deviation table 1 RPM indicator 1 Running time meter 1 Manifold pressure indicator...

  • Page 32: Other Limitations

    HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations 2.14 OTHER LIMITATIONS Limitations for soaring when using a battery with a capacity of 18 ampère-hours The capacity of the lead accumulator is highly dependent on the temperature. There- fore, the duration of continuous soaring at low ambient temperatures is restricted to: 4 hours at 0 °C (32 °F) and...
  • Page 33 HK 36 TC with Rotax 912 S3 Operating Flight Manual Limitations Placard Location Remark This powered sailplane must be operated as a utility category powered sailplane in compli- ance with the operating limitations as stated in the form of placards, markings, and manuals.
  • Page 34 HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures CHAPTER 3 EMERGENCY PROCEDURES Page 3.1 INTRODUCTION ......... 3-2 3.2 CANOPY JETTISON .

  • Page 35: Introduction

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.1 INTRODUCTION This chapter provides checklists and recommended procedures for coping with emer- gencies that may occur. Since it is impossible to foresee all kinds of emergencies and consider them in the Flight Manual, it is absolutely necessary for the pilot to know the powered sailplane and to have knowledge and experience in solving problems that may occur.

  • Page 36: Stall Recovery

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.4 STALL RECOVERY Behavior with power off Under all loading conditions, air brakes extended or retracted, in straight and level or in banked flight, the powered sailplane enters a horizontal stall, during which the ailerons remain effective, even with maximum elevator deflection.

  • Page 37: Spin Recovery

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.5 SPIN RECOVERY Rudder ......apply fully opposite to spin direction Elevator .

  • Page 38: Engine Failure

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.7 ENGINE FAILURE 3.7.1 ENGINE FAILURE DURING TAKE-OFF Fuel valve ......check OPEN Electric fuel pump .

  • Page 39: Engine Restart With A Discharged

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.7.2 ENGINE RESTART WITH A DISCHARGED BATTERY (DURING FLIGHT) Electrical equipment ....OFF Fuel valve .

  • Page 40: Propeller Remains In Feathered Position

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.7.3 PROPELLER REMAINS IN FEATHERED POSITION NOTE The propeller requires hydraulic pressure for pitch reduc- tion. The hydraulic pressure is supplied by a pressure accu- mulator. If this accumulator is empty, pressure must be built up by the oil pump of the engine.
  • Page 41 HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures CAUTION It is possible to start the engine with the propeller in the feathered position, this however increases engine wear. Oil pressure ......must be available within 10 seconds Choke .

  • Page 42: Engine Failure During Cruise

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.7.4 ENGINE FAILURE DURING CRUISE Fuel valve ......check OPEN Electric fuel pump .

  • Page 43: Carburetor Icing

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.7.5 CARBURETOR ICING NOTE Carburetor icing can be recognized by a drop in the engine RPM and/or loss of manifold pressure and/or irregular run- ning of the engine without a change in the throttle control position, the choke position, the propeller setting, the air- speed, or the altitude.

  • Page 44: Fire

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.8 FIRE 3.8.1 ENGINE FIRE DURING START ON THE GROUND Fuel valve ......CLOSED Throttle control .

  • Page 45: Engine Fire During Flight

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures after climbing to a height from which the selected landing area can be reached safely: Fuel valve ......CLOSED Electric fuel pump .

  • Page 46: Other Emergencies

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.9 OTHER EMERGENCIES 3.9.1 MALFUNCTION OR FAILURE OF PROPELLER SPEED CONTROL Throttle control ..... . keep RPM in admissible range Airspeed .

  • Page 47: Warning Light For Fuel Pressure Illuminates

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.9.3 WARNING LIGHT FOR FUEL PRESSURE ILLUMINATES Electric fuel pump ....ON if the light extinguishes: * Land on nearest suitable airfield and determine reason for illumination.

  • Page 48: Emergency Landing On Water

    HK 36 TC with Rotax 912 S3 Emergency Flight Manual Procedures 3.9.5 EMERGENCY LANDING ON WATER Emergency landings on water should be performed in extreme emergency situations only. It must be assumed, from trials with sailplanes, that the powered sailplane will submerge immediately after touching the water and then surface again.
  • Page 49 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures CHAPTER 4 NORMAL PROCEDURES Page 4.1 INTRODUCTION ......... 4-2 4.2 RIGGING AND DE-RIGGING .
  • Page 50 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.1 INTRODUCTION Chapter 4 contains checklists and a description of the normal operating procedures which is based on the results of flight tests. Normal procedures associated with optional systems can be found in Chapter 9.
  • Page 51 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Wing installation without wing folding mechanism Clean all bolts and bushes and the B-bolt locking unit and apply a light coat of grease. Lift one wing (two persons at the root rib, one at the wing tip) and insert spar stump into spar tunnel.
  • Page 52 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Wing installation with wing folding mechanism Clean all bolts and bushes and the B-bolt locking unit and apply a light coat of grease, remove cover from B-bolt handhole. Unhook one wing from its hanging mount on the stabilizer, pull it rearward to the stop.
  • Page 53 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Secure main bolts with spring loaded hook. Apply water resistant adhesive tape to the gap between fuselage and wing and to the covers on the access holes. Wing removal To remove the wings reverse the above procedure.
  • Page 54 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Horizontal stabilizer installation Clean all bushes and bolts and apply a light coat of grease. Move trim knob to full NOSE DOWN position. Remove the Pitot tube. Position the horizontal stabilizer over the stabilizer mount; the elevator push-rod must be connected by a second person.
  • Page 55 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.3 DAILY INSPECTION WARNING Master switch OFF, ignition switch OFF! Fuel tank drain check: on the drain port (see Section 7.10 FUEL SYSTEM), drain off about 1/8 liter (approx. 1/8 US qt) of fuel using a transparent drain cup.
  • Page 56 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Inspection of horizontal stabilizer: - Check horizontal stabilizer and tips for improper mounting and insecure attachment, and check skin for damage and cracks. - Check elevator for improper mounting, play, damage and cracks.
  • Page 57 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Oil and coolant check: - Check oil level. NOTE The oil consumption is minor. Refill engine oil only when the oil level reaches or falls below the minimum marking.
  • Page 58 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Check in the cabin: - Verify that loading is admissible (refer to Chapter 6). NOTE Ensure compliance with loading restrictions by changing and/or rearranging the useful load. - Master switch ..... ON - Mode select switch .
  • Page 59 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures - Master switch ..... OFF - Foreign bodies and loose items ..check - Canopy .
  • Page 60 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures WARNING People must stay clear of the propeller danger zone! - Ignition switch ..... turn clockwise to start engine - Throttle control .

  • Page 61: Master Switch

    HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures - At increased idle speed (approximately 1000 RPM) turn off ignition and simultaneously pull propeller speed control all the way back to the FEATHER position. NOTE Unless the propeller speed control is actuated simulta- neously with the ignition switch, the propeller will remain in the take-off position.

  • Page 62: Main Bolts

    HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.4 PREFLIGHT INSPECTION The following checklist placard with the most important items is placed where it is well visible for both pilots: START CHECK 1. Mass & Balance checked 2.

  • Page 63: Extinguishes After Build-Up Of Fuel Pressure

    HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5 NORMAL PROCEDURES AND RECOMMENDED SPEEDS 4.5.1 STARTING ENGINE, RUN UP & TAXIING PROCEDURES Rudder pedals ..... . adjust Seat harnesses .

  • Page 64: Throttle Control

    HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures WARNING People must stay clear of the propeller danger zone! Ignition switch ..... . turn clockwise to start engine Throttle control .
  • Page 65 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Electrical equipment ....as required Altimeter ......set Oil temperature .
  • Page 66 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Propeller check: - Throttle control ....adjust 2000 RPM - Pull propeller speed control back to the cam in front of the SOARING posi- tion, wait until propeller speed drops to approximately 1800 RPM.
  • Page 67 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5.2 TAKE-OFF AND CLIMB Cowl flap ......OPEN Electric fuel pump .
  • Page 68 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5.3 FLIGHT (INCLUDING IN-FLIGHT ENGINE STOP/START PROCEDURES) NOTE Economic power settings can be found in Paragraph 5.3.7 FUEL CONSUMPTION, CRUISING SPEED, ENDUR- ANCE, RANGE. In-flight engine stop Throttle control ..... . IDLE Electrical equipment .
  • Page 69 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Ignition switch ..... . OFF Propeller speed control ....FEATHER (pull all the way back over the cam) Mode select switch .
  • Page 70 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Oil pressure ..... . . check NOTE The hydraulic pressure accumulator is no longer full after the propeller pitch change.
  • Page 71 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5.4 DESCENT Power ......reduce as required Carburetor heat .
  • Page 72 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Sideslip ......possible but not necessary...
  • Page 73 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Touchdown ......on main landing gear Wheel brakes .
  • Page 74 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Balked landing with engine power Air brakes ......retract Power setting .
  • Page 75 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Landing without engine power NOTE If the propeller is feathered, sufficient height must be al- lowed on approach to ensure that the landing field is reached safely. Starting the engine takes too much time during final approach.
  • Page 76 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures Wheel brakes ..... . . apply as required using toe-brakes CAUTION The wheels have a differential braking system.
  • Page 77 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5.8 FLIGHT IN RAIN NOTE Flight performance deteriorates in rain. The impact on the flying characteristics is minor. Flight in very heavy rain should be avoided because of the reduced visibility.
  • Page 78 HK 36 TC with Rotax 912 S3 Normal Flight Manual Procedures 4.5.11 PARKING When parking for a short time, the powered sailplane should be oriented in headwind direction with the parking brake set and the air brakes fixed in the half-extended position.
  • Page 79 HK 36 TC with Rotax 912 S3 Performance Flight Manual CHAPTER 5 PERFORMANCE Page 5.1 INTRODUCTION ......... 5-2 5.2 ACG-APPROVED DATA .

  • Page 80: Introduction

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.1 INTRODUCTION Chapter 5 provides ACG approved data for airspeed calibration, stalling speeds and take-off performance, as well as additional information which does not require ap- proval. The data in the charts has been determined on the basis of flight tests with the pow- ered sailplane and power-plant in good condition, with the wheel fairings installed and using average piloting techniques.

  • Page 81: Acg-Approved Data

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.2 ACG-APPROVED DATA 5.2.1 AIRSPEED INDICATOR SYSTEM CALIBRATION Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 5 - 3...

  • Page 82: Stalling Speeds

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.2.2 STALLING SPEEDS Stalling speeds at different bank angles in km/h: Air brakes Bank angle 0° 30° 45° 60° retracted v 78 km/h 84 km/h 93 km/h 110 km/h extended v...

  • Page 83: Take-Off Performance

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.2.3 TAKE-OFF PERFORMANCE Conditions: ... . . 15 EC (59 °F) - Outside Air Temperature - Atmospheric pressure ....1013 hPa (29.92 inHg)

  • Page 84: Additional Information

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.3 ADDITIONAL INFORMATION 5.3.1 DEMONSTRATED CROSSWIND PERFORMANCE Take-off 30 km/h 16 kts Landing 30 km/h 16 kts 5.3.2 GLIDE PERFORMANCE AND FLIGHT POLAR Minimum rate of descent 1.18 m/s (232 fpm)
  • Page 85 HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.3.3 TAKE-OFF CHARTS Conditions: - Full throttle - Maximum flight mass - Propeller setting ..... TAKE-OFF - Rotation speed .
  • Page 86 HK 36 TC with Rotax 912 S3 Performance Flight Manual ... Take-off roll ... Take-off distance to clear a 15 m (50 ft) obstacle Pressure altitude above MSL Head- wind 0 m / 0 ft 400 m / 1310 ft...

  • Page 87: Noise Data

    HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.3.4 NOISE DATA The evaluation of noise emission was carried out according to the Noise Regulations of ICAO, Annex 16. According to Chapter 10: 61.8 dB(A) According to Chapter 6 (for Austria only): 62.3 dB(A);...
  • Page 88 HK 36 TC with Rotax 912 S3 Performance Flight Manual 5.3.7 FUEL CONSUMPTION, CRUISING SPEED, ENDURANCE, RANGE NOTE The specifications for endurance and range apply to a full tank and do not include any reserve. The range specifica- tions apply to flight in still air with a well-maintained and correctly adjusted powered sailplane.
  • Page 89 HK 36 TC with Rotax 912 S3 Performance Flight Manual NOTE It is generally recommended for a fast cruise to select a propeller speed of 2250 RPM and a manifold pressure which is at least 0.7 inHg under the maximum obtainable.
  • Page 90 HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual CHAPTER 6 MASS (WEIGHT) AND BALANCE Page 6.1 INTRODUCTION ......... 6-2 6.2 WEIGHING PROCEDURE .

  • Page 91: Introduction

    Flight Manual 6.1 INTRODUCTION Chapter 6 describes the range of loading in which the HK 36 TC be operated safely. Descriptions of the weighing procedure, the determination of the admissible empty mass CG range and a list of the equipment that must be present in the powered sailplane during the weighing process are included in the Airplane Maintenance Manual (Doc.

  • Page 92: Weighing Report

    HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual 6.3 WEIGHING REPORT The Weighing Report shows the current empty mass (empty weight) and the corre- sponding CG position. The Weighing Report is filed in the Airplane Maintenance Log.

  • Page 93: Basic Empty Mass And Moment

    Airplane Maintenance Manual, Paragraph 4.6. NOTE Due to the design of the HK 36 TC, the maximum mass (weight) of all non-lifting parts will not be exceeded as long as the maximum flight mass (max. gross weight) of 770 kg (1698 lb) is complied with.
  • Page 94 HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual 6.6 MASS AND BALANCE FORM The Mass and Balance Form on the next page shows the following values: current empty mass current empty mass CG position current maximum useful load including parachute, seat cushions, fuel, and...

  • Page 95: Mass And Balance Form

    HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual MASS AND BALANCE FORM SERIAL NO.:________________ CALL SIGN:_______________ Minimum useful load Empty on seats Date Empty mass Max. with full fuel tank mass CG pos. useful Signature 12 kg...

  • Page 96: Useful Load

    HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual 6.7 USEFUL LOAD The useful load consists of the masses (weights) of occupants (including parachutes), baggage and fuel. 6.7.1 MAXIMUM USEFUL LOAD The maximum permissible useful load is shown in the Mass and Balance Form, in the Mass and Balance Diagram, and on the placard in the cockpit.

  • Page 97: Useful Load In Baggage Compartment

    HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual Trim weights If the minimum useful load on the seats is above 55 kg (121 lb), then a trim weight fixture can be installed on the center console 400 mm (15.75 in) aft of the firewall. A...

  • Page 98: Fuel Load

    HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual 6.7.4 FUEL LOAD The fuel capacity is given in Section 2.4.3 FUEL. NOTE When refuelling, make sure not to exceed the maximum permissible useful load. Lever arm of the fuel tank The load calculations are based on the following CG positions for the fuel load: Standard tank (55 l / 14.5 US gal)
  • Page 99 HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual Use of the Mass and Balance Diagram The prohibited combinations of useful load on the seats and total mass (weight) of fuel and baggage are represented by the hatching.
  • Page 100 HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual Examples Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 6 - 11...
  • Page 101 HK 36 TC with Rotax 912 S3 Mass & Balance Flight Manual Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 6 - 12...
  • Page 102 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description CHAPTER 7 POWERED SAILPLANE AND SYSTEMS DESCRIPTION Page 7.1 INTRODUCTION ......... 7-2 7.2 AIRFRAME .

  • Page 103: Introduction

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.1 INTRODUCTION Chapter 7 provides a description of the powered sailplane and its systems along with information on their operation. Refer to Chapter 9, Supplements, for details of optional systems and equipment.

  • Page 104: Flight Controls

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Tail plane The rudder, elevator and horizontal stabilizer are manufactured in semi-monocoque sandwich construction. The folded-top COM antenna and the Pitot tube mount are located in the vertical stabilizer. The horizontal tail surfaces are attached with two bolts and a fastening screw.

  • Page 105: Air Brake System

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Rudder pedal adjustment CAUTION The rudder pedals must be adjusted on the ground. The pedals are unlocked by pulling the black T-grip in front of the control stick.

  • Page 106: Landing Gear System

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.5 LANDING GEAR SYSTEM The landing gear consists of a resilient main gear with spring steel struts, and a resilient castering nose wheel. An elastomer damper provides suspension for the nose wheel.

  • Page 107: Seats And Safety Harnesses

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.6 SEATS AND SAFETY HARNESSES The seat shells are removable in order to permit maintenance and inspection of the control system parts beneath. Jackets on the control sticks and on the air brake levers prevent foreign bodies from falling into the area of the control gear.

  • Page 108: Cockpit

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.8 COCKPIT Doc. No. 3.01.12-E Rev. 1 06 Oct 2003 Page 7 - 7...
  • Page 109 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Mode select switch When the mode select switch is in the SOARING position, only the COM equipment and the electric vertical speed indicator (optional) are supplied with battery power. All other electrical equipment is switched off.

  • Page 110: Power-Plant

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Canopy jettison By forcefully swinging the two red levers on the left and right side of the canopy frame 180° rearward, the canopy is disconnected from the two brackets on the left and right side.
  • Page 111 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Carburetor heat, throttle control, propeller speed control These three functions are combined in a unit (throttle quadrant) on the center console. Carburetor heat: Small rectangular lever, Lever fully rearward = carburetor heat ON The carburetor heat is normally OFF (lever fully forward).
  • Page 112 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Cowl flap For the operation of the cowl flap, there is a T-grip on the center console next to the cabin heat button. To arrest the T-grip, turn it 90° clockwise.
  • Page 113 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Propeller Hydro-mechanical constant speed propeller mt-Propeller MTV-21-A-C-F/CF175-05 Diameter ....... . 175 cm (5 ft 9 in) Pitch angles: low pitch .
  • Page 114 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description If the propeller speed control is moved fully rearward over the cam (FEATHER posi- tion) and the propeller speed is higher than 500 RPM, the blades will move into the feathered pitch position.

  • Page 115: Fuel System

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.10 FUEL SYSTEM The aluminum tank is located behind the backrest beneath the baggage compartment. The standard version holds 54 liters (14.3 US gal), the long range version 77 liters (20.3 US gal) of usable fuel.

  • Page 116: Electrical System

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.11 ELECTRICAL SYSTEM The master switch is a toggle type. The mode select switch is situated to the right of the master switch. CAUTION Starting the engine is only possible if the mode select switch is in the POWER FLIGHT position.

  • Page 117: Miscellaneous Equipment

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.13 MISCELLANEOUS EQUIPMENT For the operation of additional avionics, refer to the manuals of the respective manu- facturers. 7.14 PLACARDS / INSCRIPTIONS 7.14.1 LIMITATION PLACARDS Limitation placards are shown in Section 2.16 LIMITATION PLACARDS.
  • Page 118 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Placard Place Remark Cabin heat Cowl Flap - instrument pa- pull - ON pull to close nel, center sec- Choke tion pull - ON LH and RH air...

  • Page 119: Placards For Electrical Equipment

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.14.3 PLACARDS FOR ELECTRICAL EQUIPMENT Placard Place Remark Power Flt. Master Soaring Fuel Position Landing shaded areas Fuel Pr. Pump Lights Light are red on placards instrument pa-...
  • Page 120 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Placard Place Remark instrument pa- nel, RH section, optional next to circuit breakers COM/ COM/ XPDR instrument pa- QDMR Vol. nel, center sec- optional tion Headset Pilot Headset Copilot...

  • Page 121: Miscellaneous Placards

    HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description 7.14.4 MISCELLANEOUS PLACARDS Placard Place Remark 79 l (20.9 US gal) AVGAS 100 LL, Auto Super min. 95 RON next to tank filler leaded or unleaded usable: 77 l (20.3 US gal) SAE 15W-40 Oil 3.0 l...
  • Page 122 HK 36 TC with Rotax 912 S3 Powered Sailplane Flight Manual Description Placard Place Remark next to main 2.3 bar / 33 psi 2 pieces wheels next to nose 1.8 bar / 26 psi wheel The placard for the Start-Check is shown in Section 4.4 PREFLIGHT INSPECTION.
  • Page 123 HK 36 TC with Rotax 912 S3 Handling, Care Flight Manual Maintenance CHAPTER 8 POWERED SAILPLANE HANDLING, CARE AND MAINTENANCE Page 8.1 INTRODUCTION ......... . . 2 8.2 POWERED SAILPLANE INSPECTION PERIODS .
  • Page 124 HK 36 TC with Rotax 912 S3 Handling, Care Flight Manual Maintenance 8.1 INTRODUCTION Chapter 8 contains the manufacturer's recommended procedures for proper ground handling and servicing of the powered sailplane. The Airplane Maintenance Manual lists certain inspection and maintenance requirements which must be followed if the Powered Sailplane is to retain a new plane performance and reliability.
  • Page 125 HK 36 TC with Rotax 912 S3 Handling, Care Flight Manual Maintenance 8.5 CLEANING AND CARE It is advisable to remove insects with a wet sponge at the end of every flying day. CAUTION Excessive dirt accumulation degrades flight performance.
  • Page 126 HK 36 TC with Rotax 912 S3 Supplements Flight Manual CHAPTER 9 SUPPLEMENTS Page 9.1 GENERAL ..........9-2 9.2 LIST OF SUPPLEMENTS .
  • Page 127 HK 36 TC with Rotax 912 S3 Supplements Flight Manual 9.1 GENERAL Chapter 9 contains information concerning additional (optional) equipment of the HK 36 TC. Unless otherwise stated, the procedures given in the Supplements must be applied in addition to the procedures given in the main part of the Flight Manual.
  • Page 128 HK 36 TC with Rotax 912 S3 Supplements Flight Manual 9.2 LIST OF SUPPLEMENTS Powered sailplane S/N.: Call Sign: Date: applicable Suppl. Rev. Title Date Tow-Plane Operation 06 Oct 2003 Electrical Power Socket for 06 Oct 2003 Additional Equipment Operation with Winterization Kit...

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