Speed graphs for Spitfire and Hurricane

[klem]

Originally Posted by Kwiatek

Are you sure it is MKII not MK1?? Cause i cant get MK1 above 240 mph at sea level - max speed 238 mph at 6 1/2 lbs.

Kwiatek, did you make those tests off line or on line? Just curious because on line at 100 feet off Manston we couldn't get more than 248mph in Spit MkIa. Not that 8mph matters when its so far off.

Is there any way to check the atmosphere settings for on and off line? Is one or neither a 'standard day'?

[ATAG_Snapper]

Originally Posted by klem

Kwiatek, did you make those tests off line or on line? Just curious because on line at 100 feet off Manston we couldn't get more than 248mph in Spit MkIa. Not that 8mph matters when its so far off.

Is there any way to check the atmosphere settings for on and off line? Is one or neither a 'standard day'?

Hi Klem,

Here's what I got yesterday for the Spit Ia at sea level:

6.5 lbs, 2800 rpms: 245 online, 249 offline
6.5 lbs, 3000 rpms: 252 online, 253 offline

[CaptainDoggles]

Originally Posted by ATAG_Snapper

Hi Klem,

Here's what I got yesterday for the Spit Ia at sea level:

6.5 lbs, 2800 rpms: 245 online, 249 offline
6.5 lbs, 3000 rpms: 252 online, 253 offline

Did you try offline at 3000 RPM? Comparing different RPM settings is rather counter-intuitive.

[ATAG_Snapper]

Originally Posted by CaptainDoggles

Did you try offline at 3000 RPM? Comparing different RPM settings is rather counter-intuitive.

I don't understand your question. Both online and offline are there, for two rpms. What's so "counterintuitive" about that?

[CaptainDoggles]

Originally Posted by ATAG_Snapper

I don't understand your question. Both online and offline are there, for two rpms. What's so "counterintuitive" about that?

WOW. I can't read. Sorry.

I don't even-

[Insuber]

Originally Posted by ATAG_Snapper

Hi Klem,

Here's what I got yesterday for the Spit Ia at sea level:

6.5 lbs, 2800 rpms: 245 online, 249 offline
6.5 lbs, 3000 rpms: 252 online, 253 offline

May I ask how does it compare with historical test data?

[ATAG_Snapper]

Originally Posted by Insuber

May I ask how does it compare with historical test data?

Hi Insuber,

Top speed for the Ia at sea level should be 283 IAS at full overboost at 3000 rpms (before the engine blows up LOL). If the boost control cut out functioned as it should in this sim and provided another short-term emergency speed boost of 25 mph, (253 + 25 = 278 mph), we'd actually be within 5 mph of Real Life data. IMHO, of course.

[Insuber]

Originally Posted by ATAG_Snapper

Hi Insuber,

Top speed for the Ia at sea level should be 283 IAS at full overboost at 3000 rpms (before the engine blows up LOL). If the boost control cut out functioned as it should in this sim and provided another short-term emergency speed boost of 25 mph, (253 + 25 = 278 mph), we'd actually be within 5 mph of Real Life data. IMHO, of course.

Hi Snapper - thank you! Do you refer to the 6.25 lbs or the 12 lbs boost?

Cheers,
Ins

[ATAG_Snapper]

Originally Posted by Insuber

Hi Snapper - thank you! Do you refer to the 6.25 lbs or the 12 lbs boost?

Cheers,
Ins

12 lbs boost

I figure top speed is top speed ie. balls out full throttle-through-the-gate-gonna-catch-that-yellow-nosed-bastage top speed....even if it's only gonna last 5 minutes on a good day.

Others more learned than I (and there's lots of THEM!) may differ, and so be it. Me? I just wanna shoot 109's. Oh, and 110's, too.

[Insuber]

Originally Posted by ATAG_Snapper

12 lbs boost

I figure top speed is top speed ie. balls out full throttle-through-the-gate-gonna-catch-that-yellow-nosed-bastage top speed....even if it's only gonna last 5 minutes on a good day.

Others more learned than I (and there's lots of THEM!) may differ, and so be it. Me? I just wanna shoot 109's. Oh, and 110's, too.

LOL! With dangerous maniacs like you in circulation I would reduce the Spit's speed even a little more then!