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B&F FK 9 Mark IV Manual

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Airplane Manual
FK 9 Mark IV
Certified as Ultralight according
Kennblatt Nr. 61102.2
BFU 95 / LTF-UL 2003
This manual must be carried in the
Serial Nr.: ____
aircraft at all times.
Manual Nr.:
This  is  the  Pilot's  operating  manual  and  
approved flight manual.
9-____-1E
Manufacturer: FK Lightplanes

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Summary of Contents for B&F FK 9 Mark IV

  • Page 1 Airplane Manual FK 9 Mark IV Certified as Ultralight according Kennblatt Nr. 61102.2 BFU 95 / LTF-UL 2003 This manual must be carried in the Serial Nr.: ____ aircraft at all times. Manual Nr.: This  is  the  Pilot’s  operating  manual  and  ...
  • Page 2 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Section 0 page 0-1 No part of this manual may be reproduced or changed in any manner without written agreement of the manufacturer. Important service informations / bulletins can be obtained from our website. Check our website regularly as automatic update by mail is not assured.
  • Page 3 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-2 List of effective Pages Revision 21 Date 1. of July 2011 Page Revision Date Page Revision Date 1.07.11 1.07.11 1.07.11 1.07.11 1.07.11 1.07.11 1.07.11 20.07.06 1.12.05 1.07.11 1.09.03 1.07.11...
  • Page 4 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-3 TABLE OF CONTENTS 1. GENERAL ................. 1-1 1.1. Airplane Three Side View ........... 1-2 1.2. Technical Data ............1-3 1.3. Abbreviations and Terminology........ 1-3 2. LIMITATIONS ................2-1 2.1.
  • Page 5 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-4 2.15. Placards ............... 2-6 3. EMERGENCY PROCEDURES ..........3-1 3.1. General ................ 3-1 3.2. Engine Failure ............. 3-1 3.3. Fuel Pressure Low ............3-1 3.4. Generator Fault ............3-1 3.5.
  • Page 6 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-5 4.9. Cruise ................4-6 4.10. Descent ................ 4-6 4.11. Landing ................ 4-7 4.12. Touch and Go.............. 4-8 4.13. After Landing / Parking ..........4-8 5. PERFORMANCE ..............5-1 5.1.
  • Page 7 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-6 7.6. Baggage ............... 7-4 7.7. Seats and seatbelts ............ 7-4 7.8. Doors ................7-4 7.9. Engine ................7-4 7.10. Fuel System..............7-5 7.11. Brakes ................7-7 7.12.
  • Page 8 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Section 0 page 0-7 8.13. Required Tools ............8-5 8.14. Weighing ..............8-5 8.15. Mounting / Maintenance of the Rescue System ..8-6 8.16. Assembly of the Aircraft ..........8-6 9.
  • Page 9 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 17 General page 1-1 General This manual must be read carefully by the owner and operator in order to become familiar with the operation of the FK 9. The manual presents suggestions and recommendations to help obtain safe and maximum performance without sacrificing economy.
  • Page 10 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 10 General page 1-2 1.1. Airplane Three Side View...
  • Page 11 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 General page 1-3 1.2. Technical Data normal shortwing Wing span: 9,85 m 9,25 m Length: 5,94 m Wing area: 11,42 qm 10,73 qm Height: 2,43 m 1.3. Abbreviations and Terminology a) Speeds Indicated airspeed = speed as shown on the airspeed indicator Calibrated Airspeed is the indicated airspeed, corrected for position...
  • Page 12 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 1 General page 1-4 c) Weight and Balance Reference An imaginary vertical plane from which all horizontal Datum distances are measured for balance purposes The horizontal distance from the reference datum to the center of gravity of an item Moment The product of the weight of an item multiplied by its arm...
  • Page 13 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 Limitations page 2-1 Limitations 2.1. General This chapter contains limitations, instrument markings and placards required for the safe operation of the aircraft. Limitations valid for additional equipment can be found in chapter 9 (supplements).
  • Page 14 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Limitations page 2-2 2.3. Airspeed Indicator Markings Every aircraft must be equipped with an airspeed indicator type “Winter  FK  9   Mk3/Mk4”, which is calibrated to the aircraft. This is the master airspeed indicator, even with an EFIS installed.
  • Page 15 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Limitations page 2-3 ROTAX 912 UL ROTAX 912 ULS automobile - oil (API SF or SG) 2,6 Ltr (min) to 3,05 Ltr (max) Oil capacity min 50°C, max. 140°C min 50°C, max. 130°C Oil temperature 1,5 bar to 5 bar (engine start 7 bar) Oil pressure...
  • Page 16 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Limitations page 2-4 2.6. Weights Maximum weight per seat: 100 kg Baggage aft max: 10 kg Total of fuel + baggage max.: 46,5 kg Empty weight: acc. actual weighing Maximum Takeoff Weight: 472,5 kg if certified acc.
  • Page 17 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Limitations page 2-5 Spinning any aircraft which is not certified for this maneuver is extremely dangerous! The onset of a stall is indicated to the pilot by many factors like IAS, stick pressure, horizon level.
  • Page 18 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 17 Limitations page 2-6 2.13. Colour The surface of the structure (composite structure) must be white or yellow. Local coloured decoration is possible. Complete painting in different colours only with agreement of the manufacturer. 2.14.
  • Page 19 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Emergency Procedures page 3-1 Emergency Procedures 3.1. General The following information is presented to enable the pilot to form, in advance, a definite plan of action for coping with the most probable emergency situations which could occur in the operation of the airplane.
  • Page 20 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Emergency Procedures page 3-2 3.6. Emergency Landing Glide speed 100 km/h flaps pos. 1 Emergency field select Emergency call (121,5 MHz) perform Throttle close Electrical fuel pump OFF (ROTAX only) Fuel selector OFF (ROTAX only) Ignition / Battery switch...
  • Page 21 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Emergency Procedures page 3-3 3.9. Fire and Smoke All electrical systems Emergency landing perform respective Abnormal List Rescue system activation only, if immediate emergency landing not possible 3.10. Stall recovery A stall can be recognized by light buffeting.
  • Page 22 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 Normal Procedures page 4-1 Normal Procedures 4.1. General This chapter deals with the normal procedures recommended for the safe operation of the FK 9. 4.2. Regular Inspection As Ultralight aircraft are designed to be lighter than normal aircraft but must withstand similiar loads, the structure and the engine must be inspected regularly.
  • Page 23 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 12 Normal Procedures page 4-2 Engine check (also perform the checks required as mentioned in the engine manual) Cowling remove Exhaust check for cracks + check springs Carburetor, accessories check Coolant check, add if required Oil quantity check, add if required...
  • Page 24 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 12 Normal Procedures page 4-3 14. . Antenna + ACL tight 15. Wing bolts secured 16. Aileron hinge secured 17. Balance weight tight, no play 18. Left wing clean, no damage 19.
  • Page 25 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Normal Procedures page 4-4 4.4. Engine Start Seat belts fastened Doors closed and locked Fuel selector OPEN All electrical equipment Circuit breaker check Instruments check & set Rescue system check safety pin removed Battery switch Ignition Electrical fuel pump...
  • Page 26 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Normal Procedures page 4-5 4.6. Before Take-off Brakes set; brakes must hold at least 3200 RPM Instruments check Choke (ROTAX only) check OFF Magnetos (ROTAX only) check at min. 2800 RPM; variance between mags.
  • Page 27 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Normal Procedures page 4-6 4.8. Climb ROTAX SMART Oil temperature max. 130°C max. 140°C max. 120°C max. 105°C Speed 120 km/h with flaps up Hint: At CHT >115°C (ROTAX only) local condensation in the cooling system will cause continuous loss of cooling fluid.
  • Page 28 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Normal Procedures page 4-7 4.11. Landing Normal Landing Speed reduce to 110 km/h Flaps set Pos. 1 Speed 100 to 110 km/h (rain + 5 km/h) Electrical fuel pump ON (ROTAX only) Short prior touchdown start flare to achieve touchdown at minimum speed...
  • Page 29 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Normal Procedures page 4-8 The following table contains minimum and maximum speeds as well as the relevant V for all flap positions, valid for a weight of 472,5 kg: Flap Position (max.
  • Page 30 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Performance page 5-1 Performance 5.1. General The graphs and tables in this section present performance information corrected for the conditions of ICAO Standard Atmosphere. These data do not contain any safety margin and are based on a clean and well serviced aircraft as well as the application of the mentioned procedures.
  • Page 31 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Performance page 5-2 5.3. Cruise Performance The following table (valid for ROTAX 912 UL; M160 (smart) is little better, ROTAX 912 ULS little worse) presents data for fuel consumption and range. For flight planning purpose, add a safety margin of at least 5%.
  • Page 32 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 1 Weight & Balance page 6-1 Weight and Balance 6.1. General To achieve the mentioned performance data and flying abilities, the aircraft must be operated within certified weight and balance limits. Although the aircraft has a wide range for weight and balance, it is not possible to fly with full baggage load, full fuel and 2 heavy pilots at the same time.
  • Page 33 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Weight & Balance page 6-2 Formula to compute the center of gravity (X): GG = total weight Center of Gravity in [m] GR = weight right GL = weight left Tricycle GV = weight front Tailwheel...
  • Page 34 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Weight & Balance page 6-3 6.3. Determination of C.G. for the Flight The Pilot is responsible for proper loading of the aircraft. The C.G. can be determined by computation or by using the following graph. The C.G.
  • Page 35 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Weight & Balance page 6-4 Method 2: Example: Enter the graph from the top with the Basic Empty Moment (example 87 mkg) from the respective Basic Empty Weight and Balance Form (Wäge- bericht).
  • Page 36 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Weight & Balance page 6-5 Insert “Loadsheet  FK9” (DIN A4) here.
  • Page 37 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 System Description page 7-1 Systems Description 7.1. General The FK 9 is a two-seat high wing ultralight aircraft with aerodynamic steering. It is available in tricycle or tailwheel configuration. The wing has flaps which can be set to three positions.
  • Page 38 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 System Description page 7-2 7.3. Rescue system The FK 9 is equipped with a rescue system mounted into the fuselage behind the seats. Only original Kevlar harness parts must be used. There must be no obstructions for the deployment of the rocket.
  • Page 39 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 System Description page 7-3 Canister system installation: Softpack installation: The system is activated by pulling the red handle. It is located either overhead the pilots seats (see picture) or at the center console.
  • Page 40 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 System Description page 7-4 7.6. Baggage There is one baggage compartment aft of the pilots seats accessible from the outside by a small door. It has a maximum capacity of 10 kg. The sum of fuel and baggage weight must not exceed 46,5 kg.
  • Page 41 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 System Description page 7-5 7.10. Fuel System There are two fuel tanks with a total capacity of 60 liters mounted behind the pilots seats. The fuel valve (ROTAX only) is located at the center console with positions ON and OFF.
  • Page 42 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 System Description page 7-6...
  • Page 43 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Systems Description page 7-7 Handling of the wingtank: To fill or empty the tank, the respective fuel valve (19) must be open and the pump must be switched to the ”up“ or  “down”  position. Filling of the wintank has to be done on ground with at least 20 liter of fuel in the main tank.
  • Page 44 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 19 Systems Description page 7-8 5.7 Ah 8 Ah 13 Ah Battery rating 5 to 8 minutes 10 minutes 15 minutes Period The electrical panel contains most of the switches and electric fuses. The electrical system is designed for a maximum load of 12 A.
  • Page 45 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 13 Handling, Serv.& Maint. page 8-1 Handling, Servicing and Maintenance 8.1. General Every owner of an FK 9 should keep close contact to the manufacturer for best support. 8.2. Ground Handling Aircraft should be parked with the nose facing into the wind and secured by putting chocks in front of the wheels.
  • Page 46 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 17 Handling, Serv.& Maint. page 8-2 8.5. Regular Maintenance and Lubrication Schedule Maintenance action is due after certain flight hours or time intervals as applicable. There are some actions which must be done for the first time after the very first 2 / 10 flight hours.
  • Page 47 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 17 Handling, Serv.& Maint. page 8-3 insert maintenance schedule FK 9 Airframe (DIN A4) here.
  • Page 48 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 21 Handling, Serv.& Maint. page 8-4 8.7. Fuel System Check / Cleaning If the fuel tanks are contaminated with dirt (check the inside by using a torch), they must be dismantled and cleaned. For this, drain the complete system (by using the electrical fuel pump) and dismantle all connections.
  • Page 49 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 20 Handling, Serv.& Maint. page 8-5 8.10. Main / Subsidiary Structure The main structure contains of: fuselage structure (metal), tail unit structure, engine mount landing gear (metal/carbon fibre composite) control surfaces (metal) main plane structure (metal/ carbon fibre composite) Repairs at the main structure must only be performed by authorized facilities!
  • Page 50 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 Handling, Serv.& Maint. page 8-6 8.15. Mounting / Maintenance of the Rescue System According to the respective manual. 8.16. Assembly of the Aircraft Assemble the aircraft as follows: Check all parts for damage Check fuselage and wings for loose or foreign objects Connect the wings to the fuselage (doors must be removed or closed)
  • Page 51 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 8 Handling, Serv.& Maint. page 8-7 Install the other wing in the same manner The storing device at the aft fuselage can be removed now Mount the outer parts of the elevator Connect and secure the rods for aileron and flaps Connect the pitot tube line...
  • Page 52 Airplane Manual FK 9 B&F Technik Vertriebs GmbH Revision 15 Supplements page 9-1 Supplements 9.1. General This chapter contains information concerning additional or differing equipment of the aircraft. Additional manuals and other useful information are indicated. 9.2. Engine Manual A separate manual for the engine is supplied with every aircraft. Specifications of this manual are part of the airplane manual and must be observed.