Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: gatt on July 10, 2001, 05:03:00 AM

Title: P-39 Airacobra
Post by: gatt on July 10, 2001, 05:03:00 AM

Does anyone have good data about P-39 performance (climb, roll ...)?

THX for any help.

Title: P-39 Airacobra
Post by: niklas on July 10, 2001, 09:21:00 AM

http://people.freenet.de/luftwaffeln/nacaroll.html (http://people.freenet.de/luftwaffeln/nacaroll.html)

there is the rollrate of a p39-D included.
 http://people.freenet.de/luftwaffeln/109f4_eval2.gif (http://people.freenet.de/luftwaffeln/109f4_eval2.gif)

this american report list 6min for the P39D to climb to 15k

niklas

[ 07-10-2001: Message edited by: niklas ]

Title: P-39 Airacobra
Post by: F4UDOA on July 10, 2001, 09:33:00 AM

Gatt,

From "America's Hundred Thousand"

The P-39D/K model
sea level= 305MPH approx
12,000FT= 360MPH
28K= 305MPH again
Climb sea level=2500fpm

P-39Q
Sea level= 305MPHsea level
20,000ft=375MPH
Climb sea level=3300fpm approx

Cheers

Title: P-39 Airacobra
Post by: AKDejaVu on July 10, 2001, 12:54:00 PM

No F4UDOA.. he said "good" data.  Those numbers suck.

AKDejaVu

Title: P-39 Airacobra
Post by: funkedup on July 10, 2001, 02:23:00 PM

Those are MIL power numbers IIRC.  At low altitudes, substantial overboost could be used in versions P-39D-2 and later.   :)

Title: P-39 Airacobra
Post by: F4UDOA on July 10, 2001, 04:05:00 PM

Actually I think Funked has a point.

I have record of the test between the A6M2 Zero and the P-39D, P-51A, P-38F, P40F, F4F and F4U-1(early) in late 1942.

The P-39 was able to outclimb the Zero to 10,000FT. This may not seem like much but when you consider that same Zero outclimbed the P-38F, P-51A, P-40F and F4F to 10,000FT it is somewhat impressive. For the record the Zero and the F4U were very close with the F4U having the advantage between sea level to 5,000ft and almost even 5K to 19K with the Zero having a "slighty higher average rate of climb".

That's a little better.

Title: P-39 Airacobra
Post by: gatt on July 11, 2001, 12:37:00 AM

Thank you guys  ;)