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Old 11th March 2011, 19:32
the_ivan the_ivan is offline
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Re: Bf 109F - improved air intake design?

According to Mtt AG (Meßprotokoll vom 18.4.38), the standard E intake had an efficiency of ~76% at VDH and high-speed.

The F-G intake is given as 90% at VDH and hi-speed, but I don't recall having seen a report where it's actually measured (DB did some when testing different alternatives, but always at climb speed IIRC).
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