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View Full Version : performance differences in SPIT models?



RedDeth
10-25-2004, 02:22 PM
just wondering in P.F. how the spits all stack up against each other? in turning and speed ? the seafire3, spit5, spit8 , and spit 9 models...

is there any advantage in the seafire3 or the spit 8 over the aep spits?

thanks in advance

RedDeth
10-25-2004, 02:22 PM
just wondering in P.F. how the spits all stack up against each other? in turning and speed ? the seafire3, spit5, spit8 , and spit 9 models...

is there any advantage in the seafire3 or the spit 8 over the aep spits?

thanks in advance

VW-IceFire
10-25-2004, 05:35 PM
Seafire III is like a Mark V but a bit heavier, with a tropical filter, and more cannon ammo (or should). The VIII is a refined version of the Spitfire over the IX (the IX being a Mark V with a bigger engine) and it should handle a little better as well as be a tad bit faster (the tailwheel was retractable).

Salfordian
10-26-2004, 01:54 AM
Theoretically the Mk VIII could take more G structurally as it had a revised airframe, whereas the Mk IX was based on a slightly modified Mk V airframe, and stress limits were imposed. Also Mk VIII had an extra fuel tank behind the cockpit as in the high alt Mk VII, so range was a bit more.

pourshot
10-26-2004, 03:52 AM
Also the mk VIII had short span ailerons, this should make rolling easier but in practice who knows.

pourshot
10-26-2004, 04:12 AM
This may be of some intrest.
http://members.optusnet.com.au/~andycarroll68/VIII_speed_chart.jpg

pourshot
10-26-2004, 04:20 AM
It should be noted that this was a tropical model and was suffering some problems with the prop surging, but it's still in the ballpark.
http://members.optusnet.com.au/~andycarroll68/VIII_climb_chart.jpg

nyme1
10-26-2004, 05:01 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Salfordian:
... Also Mk VIII had an extra fuel tank behind the cockpit as in the high alt Mk VII, so range was a bit more. <HR></BLOCKQUOTE>

As far as I know mk.VIII had extra fuel tanks in the wings not behind the cockpit.
As regards mk.VII - it had pressurized cockpit including first fuselage section behing pilots seat so I don't suppose there would be fuel tank. If there would be tank it should be too far in the rear fuselage so there would be so great change of center of gravity.
Tank behind the cockpit was typical for some late Spitfires mk.IX/XVI (mk.9/mk.16) (perhaps XIV/14 too). When this tank was full, flying was rectricted to gentle manoeuvres only due to mentioned change in CoG. This tank wasn't usually filled when flying combat missions. Usually was used just for long flights between airbases.

WUAF_Badsight
10-26-2004, 05:05 AM
Spitfire aficionado Wuaf_NixonFeind loves the Mk8 over all as he rates it as the best balanced Spit