Check Off List

B-24D and B-24E Airplanes

BEFORE STARTING ENGINES

  1. Check Form 1 and Loading
  2. Pitot Heads - Covers removed
  3. Wheel Chocks in Place
  4. Bomb Doors and Cabin Doors - "OPEN"
  5. Fuel Tank Valves - "ON"
  6. Amount of Fuel - not less than 1200 U.S. Gallons
  7. Main Line and Battery Switches - "ON" (If Battery Cart not used)
  8. Generator Switches - "OFF"
  9. Auxiliary Power Unit Started
  10. Turn on Electric Auxiliary Hydraulic Pump
  11. Adjust Seat and Rudders
  12. Parking Brake - "ON"
  13. Instrument Power Switch - "ON"
  14. Navigation and Cabin Light - "ON" (Night)
  15. Supercharger - "OFF"
  16. Mixtures - "IDLE CUT OFF"
  17. Automatic Pilot - "OFF"
  18. Wing and Prop De-Icers - "OFF"
  19. Intercooler Shutters - "OPEN"
  20. Cowl Flaps - "OPEN"
  21. Altimeters Set
  22. See that Propellers are Clear and Ground Crew Notified, Fire Guard Posted, Pull Propeller through by hand six blades
  23. Propellers High RPM
  24. Throttles 1/3 "OPEN"
  25. Ignition Switches - "ON" (All Engines)
  26. Fuel Pressure - Booster Pump on for Engine to be started
  27. Primer (Electric) as required
  28. Starter Energizer 30 Seconds, then Mesh - Old Type
  29. Starter Energizer 12 Seconds, then Mesh while still holding Energizer "ON"
  30. Mixture - Automatic Lean (after Engine Fires) - Do not exceed 1400 RPM in "Auto Lean" on Ground

BEFORE TAKEOFF

  1. Cabin and Bomb Doors "Closed"
  2. Surface Controls - Checked for Freedom and Direction
  3. Trim Tabs - Set for "Take-Off"
  4. Mixtures - Auto Rich
  5. Check Fuel Pressure with Booster Pumps "OFF" - "ON" after Check
  6. Check Engines at 2000 RPM after head temperature reaches 150° C.
  7. Check Switches and Instrument Readings (Vacuum Pressure On - No. 1 and No. 2 Engines - 4 = ¼ at 100 RPM)
  8. Check High RPM Lights "ON"
  9. Check Manifold Pressure Full Throttle
  10. Supercharger Set and Locked (49" @ 2700 RPM)
  11. Wing Flaps - "DOWN" 20° on No. 3 Run Up
  12. Cowl Flaps 1/3 "OPEN" (Greater Opening Buffets Tail)
  13. Auxiliary Power Unit "OFF"
  14. Generators "ON"
  15. Landing Gear Lever "DOWN" Position to Check Kick-Out Pressure (should be 825 lbs. to 875 lbs.)
  16. Gyro Instruments Uncaged
  17. Nose Clear of Crew

READ BEFORE TAKE-OFF
AFTER TAKE-OFF AND DURING CLIMB

  1. Gear Up on Pilot's Signal (Brakes Applied to Stop Wheels)
  2. Turbo Superchargers Reduced to 45.5"
  3. Reduce RPM to 2550
  4. Raise Flaps only after gear up lever returns to neutral
  5. Fuel Booster Pumps "OFF" (Unless Required for High Altitude Flying)
  6. Cowl Flaps adjusted
  7. Auxiliary Hydraulic "OFF" on other than local flight

BEFORE LANDING

  1. Notify Crew
  2. Nose Clear of Crew
  3. Auxiliary Hydraulic Power "ON"
  4. Brakes Check Pressure (850 lbs. to 1050 lbs.)
  5. Automatic Pilot - "OFF"
  6. Cowl Flaps - "CLOSED"
  7. Mixtures - "Auto Rich"
  8. Intercooler shutters "OPEN" (Unless Carburetor is Icing)
  9. Booster Pumps - "ON"
  10. Wing De-Icer - "OFF"
  11. Landing Gear Lever "UP" to Check Kick-out Pressure (Should be 1050 to 1100 P.S.I.)
  12. Landing Gear "DOWN" (Air Speed not to Exceed 155 MPH)

    Sequence of Operation:

    • Pressure Builds up Suddenly then Drops
    • Green Light Turns On
    • Control Handle returns to Neutral
    • Warning Horn - "OFF" when any Throttle is Closed
    • Visually Inspect Locks
  13. Wing Flaps - "DOWN" do not Exceed 155 MPH with Flaps Down
  14. Propeller Controls High RPM
  15. Turbos (as required) "OFF" Normally (See Supercharger Operation)
  16. Landing Gear Latch "DOWN" again (Final Check)

AFTER LANDING

  1. Cowl Flaps "OPEN"
  2. Turbos - "OFF"
  3. Wing Flaps - "UP"
  4. Mixture - "Auto Lean"

TO SECURE AIRPLANE

  1. Engines - "STOPPED"
  2. Cowl Flaps "Closed" after Engine cools
  3. Wheels Chocked
  4. Surface Controls - Locked
  5. All Switches - "OFF"
  6. Tail Support - Installed
  7. Landing Gear Lever in "DOWN" position

OPERATING LIMITS

  1. Oil Pressure 75-90 PSI
  2. Fuel Pressure 14-16 PSI
  3. Oil Temp. (For Take-Off) 40°-85° C.
  4. Cyl. Hd. Temp. (For Take-Off) 205° C.
  5. Max. Head Temps.
    Continuous Operation - 232° C.
    Full Power Climb - 260° C. (One hour only)
    High Speed - 260° C. (One hour only)

CLIMB AND HIGH SPEED (Military Power - Available for 5 Min.)
Max. RPM=2700 and Manifold Pressure=49" HG up to 23,000
Feet Altitude (Reduce Manifold Pressure 1.5" HG per 1000 Ft.
Increase in Altitude over 23,000 Ft.

REQUIREMENTS FOR AUTOMATIC LEAN CRUISING

  1. Mixture Controls - Automatic Lean
  2. Oil Temperature: 75° C. Max.
  3. Oil Pressure: 65 to 100 PSI
  4. Cylinder Head Temperature: 232° C. Max.
  5. Fuel Pressure: 14 to 16 PSI
  6. Cowl Flaps - Closed if possible - or as required
  7. Throttle and Supercharger - At Altitudes where Superchargers are required, put Throttles to Stops and Use Supercharger as required. At Lower Altitudes where Supercharger is not Required, bring Throttles back 2" Hg below desired, then use Supercharger to Gain Desired Manifold Pressure