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Old 31st July 2014, 03:46
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Re: True performance of Hawk 75?

Quote:
Originally Posted by Graham Boak View Post
It is possible that the Finns were using fuel of a lower octane rating: this does seem to have been the case with their (and the Russian) evaluations of the Hurricane. The Russians are known to have set up a dedicated supply line supplying 100 octane to their P-39 units, but not to other (earlier) types. The Finns would not have had access to such supplies. It is perhaps arguable whether these Hawk 75 trials had such access either.
It is my understanding that the Finnish tests were flown using 87 oct.
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