Since the weather here has gone to hell in a hand basket and it’s
going to take Peter and his ERA elves another 8 or 9 months to finish
my turnkey, I was getting bored (been 4 months since the order was placed)
and was reading some of the old threads and came across this one.
While I don’t have a Cobra now I used to have one and dug out some old manuals
and ran off the starting procedure for it. Sometimes I wonder how we ever got anything done after going through all of this.
BEFORE START
*1. Canopy hatch - as desired.
*2. Knife and loose equipment - stowed and
secure.
3. Seat and pedals - adjust.
*4. Safety belt and shoulder harness fastened.
5. Shoulder harness lock - operation of inertia reel.
6. Door jettison handle - secure and safetied.
*7. Cyclic - position and trigger guard down.
*8. Collective - position, friction - OFF, downlock removed.
*9. Throttle friction - OFF.
10. SL, searchlight, switch - STOW
*11. AC circuit breakers - In WEAPON SIGHT).
12. BAT switch - OFF.
13. GEN switch - OFF.
14. INVTR switch - OFF.
15. NON-ESS BUS - MANUAL
*16. ENG DE-ICE switch - OFF.
17. FORCE TRIM switch - FORCE TRIM
18. FUEL switch - OFF.
19. ENG
OIL BYP switch - as desired.
20. GOV switch - AUTO.
21. Free air temperature - check.
22. SCAS power - OFF.
23. Canopy removal arm/fire unit safety pin - remove and stow.
24. Signal distribution panel - as desired.
25. Instruments - check static indications, condition, and markings.
*26. Altimeter - set.
27. VIS/IVSI - note indication.
28. RMI - set to ADF position. *29. EMER COL HYD switch - OFF.
30. WING STORES JETTISON switch Cover closed and safetied.
31. Compass slaving switch - as desired.
32. Clock - wound, running. and set.
33. Weapons select switch - as desired.
*34. MASTER ARM switches - OFF.
35. GUNNER/PILOT CONTROL switch as desired.
*36. POINT / AREA FIRE switch - as desired.
37. WG ST JETTISON SELECT - BOTH.
38. RKT
PR SEL - set to 1. 39. WG ST ARM switch - OFF.
40. SMOKE grenade switches - OFF.
41. FM radio - OFF and set..
42. PROXIMITY WARNING - OFF.
43. PITOT HEAT switch - OFF.
44. RAIN REMOVAL - ENVR CONT switch - OFF.
45. HEAT OR VENT control- PULL.
46. Vents - as desired.
47. Avionics - OFF, SN on desired frequencies.
48.
Deleted.
49.
Deleted.
50.
Deleted.
51. INSTR and CONSOLE LTS - as desired.
*52. ANTI-COLL LT - ON.
53. POSITION LTS switch - as required. Steady for night; OFF for day.
54. DC circuit breakers - IN.
55. Cockpit lights - OFF, Check condition and security. Set as required.
3-17. Starting Engine.
*1. Helmets and gloves - on.
*2. Helmet Visors - down.
*3. BA T switch - ON, OFF for GPU start.
WARNING
When helicopter is armed with rockets, make start with battery only, because it is hazardous to place an APU (or any electrical generating equipment) in same revetment or parking area due to danger of accidental firing of rockets.
*4. APU - Give signal for APU connection. *5. Intercom - as desired.
5. RPM WARNING - OFF.
7. CHIP DET - Test.
*8. GOV RPM INCR/DECR switch decrease 10 seconds.
*9. Throttle - Check full travel and operation of engine idle stop, and idle release switch.
*10. Throttle -Set - rotate to engine idle and position just to the abort side of the stop.
*11.FUEL switch - FUEL.
*12. MASTER CAUTION WARNING lights and RPM - ON.
*13. CAUTION panel and MASTER CAUTION lights - TEST and RESET.
*14. Fireguard - posted.
15. Main rotor - clear and displaced.
*16. Voltmeter - minimum 22 vdc.
17. Deleted.
*18. Starter trigger - energize, start clock.
19. Deleted.
*20. Collective - full down during start.
21. Cyclic - centered.
*22. EGT and gas producer gage - monitor.
*23. Starter trigger - release at 40 percent N1.
*24. GEN switch - ON.
*24. INVTR switch - MAIN.
*25. Engine and transmission
oil pressure proper indication.
*26. Throttle - slowly advance past the flight idle stop to engine idle position. Manually check stop by attemptirlg to roll throttle off.
*27. APU start - APU disconnected. battery ON.
28. Wing stores ground safety pins removed.
29. Instruments and console lights - as desired.
3-18. Engine Runup.
*1. Gas producer (Nl) - 68 to 72 percent.
2. Throttle friction - as desired.
*3. Engine
oil pressure - 25 psi minimum at flight idle.
*4. Transmission oil pressure - check.
*5. Fuel pressure - check.
*6. MASTER CAUTION light - OFF.
*7. SCAS POWER switch - POWER (check No-Go lights illuminated).
8. Force Trim switch - FORCE TRIM. Check force gradients operational. Press cyclic momentary interrupt switch (pilot then gunner) ensuring magnetic brakes release.
9. Force trim switch - OFF; check pedals and cyclic for freedom of movement and tip-path plane correlation.
10. Hydraulic system number 1 -. Hold switch to hydraulic system 1 (system 2 out). Check master caution and HYD PRESS #2 caution lights ON. All controls free.
11. Hydraulic system number 2 - Hold switch to system 2 (system 1 out). Check master caution and HYD PRESS # 1 caution lights ON. Pedals stiff, cyclic and collective free.
12. Hydraulic test switch - release, lights out.
13. Force trim switch - FORCE TRIM.
*14. Throttle - slowly advance until rpm is 6000 :t50. Check throttle full open. Do not exceed engine limitations.
*16. Radios and navigation aids - ON.
17. XPDR, Transponder - STBY.
*18. GOV INCR-DECR switch - actuate through full range slowly to 6700 rpm. Set rpm at 6600. During increase-decrease check observe low rpm audio and rpm warning light out at 300 rotor rpm
*19. Instruments - normal.
*20. Check for voltage indication as follows: 27.0 Volts 80°F (27°C) and above
28.0 Volts 32°F to 80°F (O°C to 27°C) 28.5 volts 32°F (O°C) and below.
21. Pitot heat switch - ON, note ammeter increase, then OFF.
22. GEN switch - OFF. Master CAUTION light and DC GENERATOR CAUTION lights ON.
23. NON-ESS BUS switch - NORMAL. Check for illumination of the AFT FUEL BOOST caution light.
24. GEN switch - ON, caution lights out.
*25. NON-ESS BUS switch - As required. NORMAL for day; MANUAL for night or weather operation. The MANUAL position should be used at any time it would not be desirable to lose cockpit lights and weapon firing capability in the event of generator failure.
26. INVTR switch - Move to OFF, check pressures and caution light, then standby position; note normal operation of standby inverter, return switch to MAIN position.
27. Engine De-ice switch - Switch to de-ice position. Check EGT rise.
28. Engine De-ice switch - OFF check EGT decrease.
*29. SCAS - Check NO-GO lights out. Engage PITCH, ROLL and YAW channels one at a time.
30. SCAS - Gunner press SCAS cyclic disengage button (Pilot notes channels off).
31. SCAS - Pilot re-engage SCAS channels press SCAS cyclic disengage button (note channels off).
32. SCAS - Pilot check NO-GO lights out re-rengage channels.
33. AFT FUEL BOOST pump - FWD FUEL BOOST pump dc circuit breaker - out, fuel pressure normal; minimum 5 psi. Caution and warning lights on.
34. Engine fuel pump - AFT FUEL BOOST pump DC circuit breaker - out, check fuel pressure zero; AFT FUEL BOOST pump caution light - ON; reset master caution, allow engine to operate without boost pumps for one minute.
*35. Magnetic compass - check with known heading.
*36. Radio magnetic indicator - check heading w.th magnetic compass.
*37. Altimeter - set.
*38. Attitude indicator - set.
*39. Canopy hatches - secured for flight.
40. Forward fuel boost pump - Check FWD FUEL BOOST circuit breaker - in; check light out; pressure normal (minimum five psi).
41. AFT FUEL BOOST pump circuit breaker - in; check all lights out; pressure normal.
42. Signal distribution panel - as desired.
43. Avionics - check as required.
*44.Force trim - as desired.
Boredom can result in my coming up with some really weird stuff.
Oh yeah, here’s a picture of me with my “other” Cobra.
DonC