P47 Thunderbolt familiarization

This video from the US War Department explains how to fly the real P47 Thunderbolts from startup to shutdown. You can also learn from P47 FSX specific A2A videos (P47 Razorback addon).

Technical & Limitations

Technical information on the p47.
Limitations and procedures come from A2A user guide, and from P-47 Thunderbolt Pilot’s Flight Operating Manual.

Weight

TAKEOFF MAX WEIGHT 17000 pounds

Power

BATTERY 24Vcc
GENERATOR 28Vcc

Fuel

MAIN TANK CAPACITY 205 USGAL
AUX TANK CAPACITY 100 USGAL
FUEL ALARM LIGHTS WHEN FUEL QUANTITY IN MAIN TANK < 40 USGAL
STARTUP PRESSURE 10 PSI
NORMAL PRESSURE 16-17 PSI
MINIMAL PRESSURE 7 PSI

Speed/Height

CEILING 38000 ft
VELOCITY NOT EXCEED 500 MPH
TAS MAX AT SEA LEVEL 321 MPH
TAS MAX AT 30000 ft 426 MPH
MAX SPEED WITH GEAR DOWN 250 KTS
DO NOT GEAR DOWN ABOVE 195 KTS
DO NOT EXTEND FLAPS ABOVE 195 KTS
STALL SPEED (LANDING CONFIGURATION AT 12500 POUNDS) 100 KTS

Cowl flaps

IF EXTERNAL TEMPERATURE > 26°C, COWL FLAPS SHALL BE FULLY OPEN.
IF TAS> 225 KTS, COWL FLAPS SHALL NOT BE FULLY OPEN.

Engine

NEVER SET MAX POWER < 7000 ft
MAX RPM 2700 RPM
RPM RANGE 1700-2550 RPM
CARBURATOR ADMISSION TEMPERATURE RANGE 12-35°C
ADMISSION PRESSURE
MILITARY POWER 52 In/Hg
NORMAL RANGE 25-52 In/Hg
CYLINDER AIR TEMPERATURE
MAX 260°C
TRANSISTIONAL (SHORT TIME) 232°C
NORMAL GROUND 150°C
NORMAL FLIGHT 200°C

Oil

OIL PRESSURE
MIN-MAX 60-90 POUNDS
OPTIMAL RANGE 75-85 POUNDS
IDLE ~25 POUNDS

OIL TEMPRATURE
MIN-MAX 40-90°C
OPTIMAL 50-70°C

Turbo

IF TAS>250 KTS, SET TURBO FLAPS TO NEUTRAL
MAX RPM 20000 RPM
EMERGENCY RPM 22000 RPM (15 MIN MAX)

Hydraulic

NORMAL PRESSURE 1000 PSI

Check lists (standard procedures)

Preliminaries

Check controls for location.
Check that gear handle is DOWN.
Check flaps handle is in UP position.
Flap equalizer, on models having it, must be DOWN (closed).
Generator switch ON.
Intercooler shutters NEUTRAL.
Oil cooler shutters NEUTRAL.
Propeller switch ON and selector in AUTOMATIC.
Fuel boost pump to START and ALTITUDE (full counterclockwise).
Check fuel pressure.
Gun switch OFF.
Adjust rudder pedals.

Starting Procedure

Turn propeller several revolutions by hand with ignition OFF.
P-47B: Ignition switch to BATT.
P-47C, D, and G: Master battery switch ON.
Supercharger lever OFF (full rear).
Fuel selector valve MAIN.
Crack throttle 1/4" to 1/2" OPEN.
Mixture control IDLE CUT-OFF.
Propeller switch AUTOMATIC.
Circuit Breaker ON.
Propeller control maximum, 2700 RPM.
Fuel boost pump control to START and ALTITUDE.
Prime 2 to 4 strokes if warm, 4 to 6 if cold.

As much as 1/4 throttle opening and heavy priming may be necessary when extremely cold.

Ignition switch to BOTH.
Energize and engage starter, push mixture forward to AUTO RICH as
soon as engine catches.

If engine stops due to being loaded, open throttle wide, and return mixture to IDLE CUT-OFF until engine starts again, then retard throttle and return mixture to AUTO RICH. Throttle to 900 RPM.

Engine Warm-up and Pre-Takeoff

Check oil pressure

If 25 lbs is not reached in 30 seconds, SHUT DOWN engine.
Do not increase power above 1000 RPM if oil pressure is 150-200 lbs.
Wait until it is normal, under 90 lbs.

Check magnetos.
With flap selector handle UP, equalize flaps.
Unlock tail wheel and taxi.

Takeoff

Set trim tabs: elevator NEUTRAL, aileron NEUTRAL, rudder TAKEOFF.
Mixture AUTO RICH.
Fuel selector valve on MAIN TANK.
Flaps UP.
Cowl flaps OPEN TRAIL.
LOCK tail wheel.
Open throttle; do not to exceed 42" (with 91 octane fuel).
Watch for overheating, AVOID at all costs!

Power Settings

Takeoff ManPress: 52" (if 91 octane do not exceed 42") RPM: 2700
Climb ManPress: 35" RPM: 2500.
Cruise ManPress: 27" RPM: 2350 (after 10 hours; first 10 hours: 25" and 2250 RPM.)

Landing

Do not lower landing gear above 200 MPH.
Do not lower flaps above 195 MPH.
For partial flaps, return flap handle to NEUTRAL.
Never exceed 250 MPH with landing gear down.
Do not use up all of the runway, land as near as possible to the beginning of the runway.

Checklists (emergency procedures)

Emergency Flaps Procedure

In case of failure of the engine-driven hydraulic pump, flaps may be manually
lowered by use of the emergency hand pump located on the left of the pilot's seat.

Emergency Gear Procedure

In case of failure of engine-driven hydraulic pump, to retract landing gear, move
control handle to UP position as usual, then operate the hand pump until the panel
warning light indicates the gear is up and locked.

To extend landing gear, move control lever to the DOWN position as usual to
releases the gear, which should drop into position and lock due to its own weight.
If gear is still not locked down, yaw the plane from side-to-side.

WARNING -- Always complete the landing-gear cycle, if possible. If handle is
moved to UP, allow gear to go completely up before moving handle again. If
handle is moved to DOWN, allow gear to go completely down before moving
handle again.

Related posts:

  1. TurboSupercharger familiarization Since 1930s, turbosupercharger is used to increase high altitude engine power. The turbosupercharger compensate the lower atmospheric pressure present at high altitude (at 18.000ft, athmospheric pressure is half than...
  2. IOCard programming IOcard is directly connected to PC parallel port, using a standard DB25 cable. IOcard consist on a network of multiplexed addressable latches. Programming is done by controlling parallel port signals....
  3. Howto access and publish addon specific variables with FSUIPC Flight Simulator addons often have specific internal variables that are not published in FSUIPC standard offsets. These values could be interresting for cockpit building. For example, A2A P47 addon does...
  4. B17 Manual and Video tutorial The B17 original manual can be found at b17panel.com (password to open pdf files is “ez”). Accu-Sim provides some video tutorials to help us flying the B17. The Accu-Sim Maintenance...

Comments are closed.