1. Home
  2. Flashcards
  3. Preview

BK117 A4/B2/C1 GENERAL INFO

  1. ABORT START CRITERIA
    (5 CONDITIONS)
    • 1)TOT rising abnormally rapidly
    • C1: above 700C rapidly approaching 785C
    • A4/B2: abv 800C rapidly approaching 899C

    2)No Engine or transmission oil pressure indications upon reaching Ground Idle

    3)N2 and NR are not matched after reaching Ground idle

    4)Suspected blade strike into vertical stabilizers

    5)(C1) OVSP F light does not go out at 25%N2 on first engine start OR 45% N1 on second engine start 
  2. ABORT START PROCEDURE
    • POWER LEVER OFF
    • STARTER SWITCH ON FOR MINIMUM OF 10 SECONDS
  3. ROTOR DISC DIAMETER
    36'1" FT
  4. AIRCRAFT LENGTH
    42'7" FT
  5. HEIGHT TO TOP OF TAIL ROTOR
    12' 7"
  6. MAX OPERATING ALTITUDE
    • A4/B2: <=3000 kgs 15000' PA
    • A4/B2: >3000 kgs 10000 PA
    • A4/B2: >3000 kgs, OAT<-30C 12000PA

    C1:18000 PA
  7. MAX ALTITUDE TO HIGE, TAKEOFF AND LAND
    A4: 11000' DA

    • B2: 17000' DA OR 15000' PA
    • WHICHEVER IS LESS

    • C1: 18000' DA OR 18000' PA
    • WHICHEVER IS LESS
  8. MAX LOAD PER GENERATOR
    150 AMPS
  9. WHAT IS THE APU VOLTS/AMPS
    28V APU LIMITED TO 800A WITH CURRENT FLOW LIMITED TO 500A
  10. WHAT TYPE OF ENGINE IS IN THE BK117 A4
    LYCOMING LTS 101 650 B1
  11. WHAT TYPE OF ENGINE IS IN THE BK117 B2
    LYCOMING LTS 101 750 B1
  12. WHAT TYPE OF ENGINE IS IN THE BK117 C1
    TURBOMECCA ARRIEL 1E2
  13. WHAT ARE THE SLOPE LIMITS IN THE BK117
    • 11 deg: LEFT SKID LOW
    • 8 deg: ALL OTHER DIRECTIONS

    5 deg: ALL DIRECTIONS WHEN MMI IS INOP
  14. MAXIMUM AIR TEMPERATURE
    • ISA+35
    • SL MAX 50C
    • @KELP (4000') 42C
  15. MINIMUM AIR TEMPERATURE
    -35C
  16. STARTER LIMITATIONS WITH BATTERY START
    • 60 SECS ON
    • 60 SECS OFF
    • 60 SECS ON
    • 23 MINUTES OFF
  17. STARTER LIMITATIONS WITH APU START
    • 40 SECS ON
    • 60 SECS OFF
    • 40 SECS ON
    • 23 MINUTES OFF
  18. MAX HOVER TURN RATE, <=3200 kgs
    45 deg/sec
  19. MAX HOVER TURN RATE, >3200 kgs
    • A4: N/A
    • B2/C1: 30 deg/sec
  20. WHAT IS THE FUEL CAPACITY
    184(.2) GALS
  21. WHAT ARE THE 3 POSITIONS ON THE VARTOM SWITCH
    • 1) NORM: Rotorspeed kept between 98-102
    • 2)104%: Above 8000'PA & <55 Kts
    • 3)MAN: Have to beep the collective
  22. WHAT IS A GENERAL RULE WHEN USING THE AUTOPILOT
    • SAS: CLOSE TO THE GROUND
    • ATT: ENROUTE
  23. WHAT ARE THE 3 POWER PLANT MODULES IN THE BK117 A4/B2
    • ACCESSORY GB/REDUCTION GB
    • GAS GENERATOR
    • COMBUSTOR/POWER TURBINE
  24. WHAT ARE THE 5 POWER PLANT MODULES IN THE BK117C1
    • 1)Transmission shaft and acces gearbox
    • 2)Axial compressor
    • 3)Gas generator, high pressure section
    • 4)Power Turbine
    • 5)Reduction GB
  25. HOW DOES THE HYD SYSTEM WORK?
    • SYSTEM 1: PITCH AND ROLL
    • SYSTEM 2: TAIL

    IN A FAILURE SYSTEM 2 BECOMES PITCH AND ROLL AND THE "TAIL" DROPS OFF
  26. WHEN CAN YOU APPLY THE ROTOR BRAKE?
    • 30% (Company policy)
    • 50% (limitation)
Author
stevew
ID
190876
Card Set
BK117 A4/B2/C1 GENERAL INFO
Description
BK117 GENERAL INFO
Updated

  1. Home
  2. Flashcards
  3. Preview