33k in the air
Staff Sergeant
- 1,281
- Jan 31, 2021
And just think of the ease of the logistics in supplying three different types of ammunition! To say nothing of ground crews having to maintain three different weapon systems!
Groundhog Thread Part Deux - P-39 Fantasy and Fetish - The Never Ending Story (Mods take no responsibility for head against wall injuries sustained)
- Thread starter greybeard
- Start date
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And just think of the ease of the logistics in supplying three different types of ammunition! To say nothing of ground crews having to maintain three different weapon systems!
Greg Boeser
1st Sergeant
Why bother? The 37mm is unreliable. It's just ballast. The synchronized fifties fire too slow. And the wing mounted .30s are too weak to do damage. best remove them and fill the gun bays with beer so you can have a cold one when you land. Or maybe not. They tend to get shaken up when you tumble.
wuzak
Captain
And hope your wingman is out of gun range?
buffnut453
Captain
The groundhog was so good it didn't need no stinkin' wingman!
GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Yep!
Plus, I don't think they had a syncronized flat-spin manouver in advanved training.
Plus, I don't think they had a syncronized flat-spin manouver in advanved training.
The ground…
ThomasP
Senior Master Sergeant
In case anyone is interested, I found this in my files the other day - no idea where I found it originally. I would assume this is the ~basis for the weight of 6690 lbs used in the Wright Field tests. As in most cases with USAAF useful load charts, the radio Command Set is probably included in the Weight Empty.
GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Glad to see the pilot is considered a "useful load"... 
33k in the air
Staff Sergeant
- 1,281
- Jan 31, 2021
I was going to suggest a flamethrower, but upon further reflection, how about a battering ram?
FLYBOYJ
"THE GREAT GAZOO"
DarrenW
Staff Sergeant
I always thought 200 lbs was considered the 'normal' crew weight for a US single-seat fighter. Weren't P-39 pilots allowed parachutes?Glad to see the pilot is considered a "useful load"...
FLYBOYJ
"THE GREAT GAZOO"
200 or 180 pounds depending if you were on weight watchersI always thought 200 lbs was the 'normal' crew weight for an American single-seat fighter. Weren't P-39 pilots allowed parachutes?
Just Schmidt
Senior Airman
Indeed he is, he can lean forward or back to ajust the cog.Glad to see the pilot is considered a "useful load"...
GregP
Major
If he's a GOOD wingman, then he's in a spin right beside you, so you have to let go of the trigger and re-engage it once per revolution to avoid killing your wingman. The timing is sort of to the tune of Foggy Mountain Breakdown or a John Phillip Sousa march. Properly done, you sling bullets everywhere for a very short time since the round per gun weren't all that much ... 200 rpg for the two nose-mounted 50's and 300 rpg for the four wing-mounted 30's. The cannon had a massive 30 rounds. That assumes a P-39N.
Of course, you are then out of ammunition and the CG has migrated aft to the point where it is tough to recover from said spin, especially simultaneously in formation, with both of you headed in the same direction.
That was all made even MORE difficult if there happened to be four P-39s spinning in formation!
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SaparotRob
Unter Gemeine Geschwader Murmeltier XIII
What a sight that would have been. It would have been glorious.
GregP
Major
But, improperly done, it was a sight to warm the Axis heart as the P-39s spun down into the ground. Hopefully, there at least a few parachutes in there somewhere.
buffnut453
Captain
This visual sprang into my mind:
SaparotRob
Unter Gemeine Geschwader Murmeltier XIII
Trippy!
GregP
Major
The only problem with this video is it lasts about 50 times longer than the ammunition in a P-39. Otherwise, it's spot-on.
fubar57
General
