michael rauls
Tech Sergeant
- 1,679
- Jul 15, 2016
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Ya, that's the trouble with the Brits didn't need the U.S.s help in in one theater or the U.S. didn't need whoevers help in this theater or that or the whole war for that matter proposed by the poster who's name escapes me at the moment. Unraveling the multiple tentacles of history and trying to figure how things would have played out is a complicated task indeed.I presume any scenario without the British still has them in Malta?
The radio equipment would be moved from the tail cone up to right behind the pilot over the engine to restore balance after removing the 100# nose armor. Balance would have been untenable without this modification.With the P39, you've got to be careful about removing weight from the nose! Your climb performance gain comes at the cost of making an already twitchy airplane twitchier. Shifting the CG aft like that does give you the benefit of a slight reduction in drag, as the horizontal stabilizer doesn't have to generate as much negative lift, with its attendant induced drag. OTOH, pitch stability is reduced and stick force gradients get terrifyingly light. An enhanced performance mount for experten, but a handful for the less experienced.
Cheers,
Wes
The conflict in N Africa was what it was on land and in the air but it the sea battle was also critical.Ya, that's the trouble with the Brits didn't need the U.S.s help in in one theater or the U.S. didn't need whoevers help in this theater or that or the whole war for that matter proposed by the poster who's name escapes me at the moment. Unraveling the multiple tentacles of history and trying to figure how things would have played out is a complicated task indeed.
My point in response to that poster was that inho while either would probably have ultimately prevailed without the other it misses the most important point which is it's a darn good thing we did have each others help lest that victory be so much more costly.
The radio equipment would be moved from the tail cone up to right behind the pilot over the engine to restore balance after removing the 100# nose armor. Balance would have been untenable without this modification.
Caldwell alone got 3 experten while flying a P-40 - he shot down Wolfgang Lippert (30 victory claims, commander of II./JG 27) on 23 November 1941, (Lippert subsequently died from wounds received while bailing out), he killed Erbo von Kageneck (69 victory "experten" of III./JG 27) on Dec 24 1941. He also shot down Stahlschmidt in February 1942 though he survived to die later.
(MAW Volume 1) page 329
"On November 22, 1941 there was a significant engagement in which the Tomahawk was put to a hard test by the Bf 109F. At 1540 nine Tomahawks of No. 112 Squadron RAF were joined by thirteen Tomahawks of No. 3 Squadron RAAF for an offensive sweep over the Tobruk-El Adem area[7]. At roughly 1600 hours they were intercepted near Bir Hacheim by 20 Bf 109Fs attacking from 3,000 feet above [8]. During the subsequent hour long engagement, which took place near two German airfields, JG 27 fighters landed and refueled to rejoin the fight. In the melee DAF fighters claimed three Bf 109s shot down and four "probables", while JG 27 claimed 11 P-40s [9]. The actual losses were 6 Bf 109F-4s and 7 Tomahawk IIbs shot down and 1 badly damaged (the aircraft of future RAAF Ace Bobby Gibbes) [10]. In the aftermath of the bloody fight both sides were shaken. The Germans believed they had come out ahead but felt the losses were unacceptable , and therefore made the decision not to dogfight the Tomahawk with the Bf 109F in the future [11], and instead to rely on 'boom and zoom' tactics[12], which while effective, imposed certain Tactical limitations. "
I just had a look at 3 squadrons ORB for this date and can confirm the following losses -MAW I states that there were 2 combats during the day; a mid morning escort for Blenheims by 3 RAAF was interceptet by Jg27 resulting in the loss of 3 Tomahawks and 2 109's. In the afternoon engagement 6 Tomahawks from 3 RAAF and 1 from 112 Sqd were lost and 4 109's shotdown. So actual losses was 10 Tomahaawks and 6 109's in these combats.
Me too. Moving radio equipment up from the tailcone to behind the pilot was a fairly common modification as shown in photographs.I would like to see a Load and Balance chart for this mod.
12 or 24 Volt DC in; 120 Volt, 400 cycle AC out, and boy, do they whine. In the T34 it was right under the front seat and you could hear it over the engine, and that 400 cycle note (a very flat middle C) always bled through into your earphones.Dyno motors were basically (I think) an electric motor running on voltage coupled to an electric generator making another voltage on the same shaft and possible using the same magnet structure. 24/28 volt motor turning a 400volt or higher generator.
Couple of radios, sometimes three, move however many you need for balance.You have to be sure that the photo is showing the complete radio.
Some P-39s mounted the IFF gear above the engine and the regular radio stayed aft.
this is a sheet for the regular radio as used in P-39Qs (other P-39s may have had a different radio?)
View attachment 542966
Better picture.
View attachment 542967
please note that this is the radio and does not include the 37lb dynomotor.
The russians may have yanked the IFF gear and moved the communications radio. I don't know. They may have left the dynomotor in the original position.
Some aircraft equipped with IFF had components of the radio installation in 5-6 locations (or up to 9 if you include the antennas) as there were separate control boxes in the cockpit.
Dyno motors were basically (I think) an electric motor running on voltage coupled to an electric generator making another voltage on the same shaft and possible using the same magnet structure. 24/28 volt motor turning a 400volt or higher generator.
Even a small one could be heavy as anyone who has used old car generators and starter motors can tell you
They seldom if ever got to perform side by side in the same arena, so it's a theoretical discussion that lets every one exercise their scholarly research skills and advocate for their preferred interpretation. "Sci-Fi", if you will.the Typhoon was better at performance but never got the chance to prove it's worth so we have a comparison that is hard to make.
Hold on just a minute! It might not be so simple as that. If Britain falls, the empire, industry, and Navy become Axis assets, and the stranglehold on raw material supply chains dissolves. Then Axis industry, along with its newly acquired assets, might very well outproduce the unlikely bedfellows, US/USSR. The blitz on London might be B36s from Bangor and Presque Isle rather than HE111s from France. And the US might be subject to invasion from the north.
Cheers,
Wes
My 2 cents, I'm not sure what the thread's purpose here was, the Typhoon was better at performance but never got the chance to prove it's worth so we have a comparison that is hard to make.
Great P40 history here to add to my childhood fantasies. I picked up WWII history after tiring of Sci-Fi at my local library. The first book I checked out on WWII was "The Flying Tigers".
Couple of radios, sometimes three, move however many you need for balance.
Couple of radios, sometimes three, move however many you need for balance.
Isn't it amazing the things that people who've never gotten their hands dirty in the guts of an airplane can accomplish that lowly grease monkeys like you and I can't?go back and look at the data sheet for the SCR-522 radio, it has the dimensions of the radio and the dynomotor. Maybe you can jam all the radio gear under the canopy over the engine and maybe you can't
I just had a look at 3 squadrons ORB for this date and can confirm the following losses -
Morning escort
AN416 F/L Saunders
AN378 P/O Lane
AK510 F/O Watson
Afternoon sweep
AN244 W/C Jefferies (force landed & rescued)
AN410 F/L Knowles
AN373 F/O Roberts
AK390 F/O Kloster
AN305 P/O Lees
AN507 Sgt Simes (rescued)
Even I know from reading about the war on the Eastern Front that out of the P-40F and Typhoon, it was the little Cobra that was the best fighter.Isn't it amazing the things that people who've never gotten their hands dirty in the guts of an airplane can accomplish that lowly grease monkeys like you and I can't?
Cheers,
Wes