Author Topic: zero roll rate? (Read 882 times)

F4UDOA · « **Reply #15 on:** September 04, 2002, 01:27:01 PM »

Niklas,

I believe the speed at which the Zero could out roll an American fighter was much lower. Closer to 200MPH. At 275MPH the Zero was locked in cement.

I have the NACA roll chart somewhere on my other machine. but at 275MPH the P-40 was around 100 degrees per second and the Zero was around 60 dps.

niklas · « **Reply #16 on:** September 04, 2002, 05:08:35 PM »

Well F4UDOA, here´s an account of a pilot who fought against the japanese and says something positive about them (what makes it very trustworthy because noone would lie to make the enemy look better), there´s a roll chart with "unknown stick forces" for the zero ....

btw noone knows the rollchart better than me, or did you already forgot who brought it up?

niklas

F4UDOA · « **Reply #17 on:** September 04, 2002, 08:17:19 PM »

CC Niklas,

Indeed an allied pilot would remember such a thing. In fact I can remeber at least one F4U pilot diving away from a Zero and remarking on how nimble the Zero seemed to roll at high speed.

However in these stories there are to unknowns.

A. What was the skill level of the NME pilot. How much stick pressure was used?

B. Was the offending A/C indeed a Zero?? It could have been a NIK1/2, KI-44, KI-84, KI-100. Who is to say in the heat of battle??

BTW, Niklas you didn't tell me about the F4U roll data on the other board. You sly dog. I thought you would post it by now.

whgates3 · « **Reply #18 on:** September 04, 2002, 10:56:44 PM »

did the zero have fabric ailerons? In his book, Douglas Bader says the early Spit Mk.I rolled very slowly at high speeds because the wind preasure would deform the fabric ailerons above ~275 MPH, killing the roll rate (there was a field upgrade to metal ailerons that fixed this).

F4UDOA · « **Reply #19 on:** September 04, 2002, 11:21:23 PM »

I doubt it Whgates. The F4U also had Fabric ailerons as did many others and it rolled very well. However the size of the barn door ailerons was the more likely culprit.

niklas · « **Reply #20 on:** September 05, 2002, 05:46:46 AM »

I really don´t know about which board you´re talking, F4UDOA.

niklas

F4UDOA · « **Reply #21 on:** September 05, 2002, 11:44:16 AM »

Really?

I swore I saw your name in thread on roll rates?

WW2 message boards

In the roll rate thread a while ago. Ever seen this chart??

F4UDOA · « **Reply #22 on:** September 05, 2002, 11:52:16 AM »

Here is the thread Niklas.

roll thread Tempest F4U FW190

niklas · « **Reply #23 on:** September 05, 2002, 01:47:52 PM »

of course, butch2k forum. I´m not very often there. If i remember myself correctly, i posted the same fw190 data a bit later here in this forum, what resulted very quickly in a 100+ replies topic hehe.

But why should post it here, it´s about Zeros. Who cares about Corsairs anyway ?

niklas