Quote:
Originally Posted by *Buzzsaw*
Salute
Historically, the Spitfire 100 octane and 109E4 should, to all intents and purposes, be almost identical in speed and climb at sea level up to approx. 15,000ft/5000 meters.
At altitudes over that where the higher boost on the Spitfire cannot be obtained, (over approx. 16,000 ft) the 109 should begin to gain an advantage in top speed and climb.
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Certainly agree that the Spitfire and 109 top speeds should be very similar, almost everything I've read seems to state that. Not sure about the 109 having a greater top speed at altitude or sustained climb though?
This graph (posted in this thread
http://forum.1cpublishing.eu/showthr...=34115&page=10) showing top speed at altitudes ranging from sea level to 35 thousand feet seems to show the Spit having a slight edge on the 109 at altitude:
