How To Start The B-17 Engine
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Uploaded by B17GMODEL on Apr 7, 2010
The B-17 engine starter was a inertia starter. The starter motor spun a heavy flywheel inside the starter.It took up 15 seconds for flywheel build up enough speed to turn the engine. When the co-pilot hit the mesh switch, that's when the flywheel engaged the engine starter gear.
A hand crank could be inserted into the starter and the flywheel could be brought to speed by hand to start the engine when the batteries were low and with no external power available.
Capt. Arthur Kennedy who plays the instructor in this film, was a actor on Broadway and in movies before joining the AAF. After leaving the Military, he remained in show business until his death in 1990. I don't know if he ever was a AAF Pilot.
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How did they ever have time to bomb Germany?
1 year ago 16
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Oh and at 3:10. The trainee is imagining a dude getting chopped up in the prop. "Oh sh....that would really suck...Wait huh??"
1 year ago 4
All Comments (16)
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Those guys must have spent half of WW II just getting the damn engines started. LOL !
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Yes it is him. It's all in the video description.
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That external APU is really small. I have seen the for B-1's and thet are the size of a truck.
MrMKH2010 6 months ago
@MrMKH2010 Seems to me that was just a generator, not a full on APU. Probably just provides low voltage for the starter motors, not the rest of the aircraft. The generators we used WERE massive (bout 4,000 lbs if I remember right), but they powered all systems on the plane.
drmuelr 5 months ago
@drmuelr The B-17 generators were type P-1 24 Volt DC 200 Ampere. They were not massive, pretty small compared to a jet engine AC Generator. The B-17 R-1820-97 engine only weighs about 1200 lbs. The B-17 internal APU, located in the aft fuselage, used for electrical power on the ground, is only about the size of a old lawn mower engine.
B17GMODEL 2 months ago
@MrMKH2010 The external APU you seen on the B-1s the size of a truck, were probably external A/C units used to cool the electronics on the ground. External power unit used by the B-1's A/M32A-86 called "Hobarts" are about the size of a pick up truck.
B17GMODEL 2 months ago
isn't that actor Arthur Kennedy? did he fly these things?
Furyfromthesky25 8 months ago
@Furyfromthesky25 Yes it is Arthur Kennedy.
B17GMODEL 2 months ago