Spitfires vs the IJAAF

[GtoRA2]

Originally posted by Ack-Ack
it's still online, just do a search for Combat Tactics in the Southwest Pacific and you'll find plenty of sites that have a copy.  If you can't just send me a PM and I'll email you a copy.


ack-ack

Thanks
 Ack, I found it again.

[Angus]

Originally posted by Debonair
i forgot to mention to you how good "Tony" Jonsson's book was:aok:aok:aok:aok:cool::cool:
that good:O

Good thing you liked it.
I rather found it good too, - actually very much like him in RL, modest and witty.
Anyway, popped in for a completely other reason. Does anyone of you IJN/IJAAF guys have any solid data on the a6m's roll rate?

[Widewing]

Originally posted by Angus
Good thing you liked it.
I rather found it good too, - actually very much like him in RL, modest and witty.
Anyway, popped in for a completely other reason. Does anyone of you IJN/IJAAF guys have any solid data on the a6m's roll rate?

Benny posted a chart that has its basis in NACA report 868, I have plugged it in below. Look carefully and you'll see the Zero at the bottom of the heap. Below the modified chart is the original from the report.




My regards,

Widewing

[Stoney74]

Wow, always thought the P-47 roll rate was higher than that by comparison.

[Widewing]

Originally posted by Stoney74
Wow, always thought the P-47 roll rate was higher than that by comparison.

When flying as bomber escorts, P-47s were usually flown at high speeds and high altitudes. At 400 mph, it rolls almost as fast as an Fw 190. At 450 mph, it's about dead even. Plus, the 190s suffered from greater adverse yaw. We should also note that the P-47N was a faster roller than the earlier models.

Likewise, at 400 mph, a P-47D-10 could complete two rolls in the time that a Spitfire Mk.IX used to complete one roll.

At high altitude and high speeds, where it was engineered to perform its best, the P-47 was very fast on the ailerons.

At 200 mph down on the deck, its rate of roll was merely average.

My regards,

Widewing

[Nashwan]

Bear in mind roll rates are tied to indicated speed, not true air speed.

At 20,000ft, 400 mph true is about 290 mph indicated, and the Spitfire and P-47 have almost identical roll rates.

Normal combat speeds at altitude tend to be on the left side of that graph, which is why the AFDU concluded the normal wing Spitfire generally rolled better than the P-51, and why the Fw 190 is generally regarded to be the best roller of them all, by a considerable margin.

[Widewing]

Originally posted by Nashwan
Bear in mind roll rates are tied to indicated speed, not true air speed.

At 20,000ft, 400 mph true is about 290 mph indicated, and the Spitfire and P-47 have almost identical roll rates.

Normal combat speeds at altitude tend to be on the left side of that graph, which is why the AFDU concluded the normal wing Spitfire generally rolled better than the P-51, and why the Fw 190 is generally regarded to be the best roller of them all, by a considerable margin.

AFDU test of P-47C vs Spitfire Mk.IX, Typhoon 1b, Mustang X and P-38F

My regards,

Widewing

[Angus]

Very nice