109 e3b against spitfire II

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[QUOTE=Seadog;298133]We know that the RAF was using vast amounts of 100 octane fuel.

5-10 000 tons a month - out of 50 000 tons total per months or compared to about 90 000 tons per month consumed by the Luftwaffe is hardly 'vast amounts'.
Its a tiny amount, even compared to 1940 overall or later RAF consumption.

Originally Posted by Seadog

If RAFFC wasn't using it, who was?

Bomber Command (at least 8 Squadrons of Blenheims for example), engine manufacturers for running ins and testing, Squadrons for non-operational flying and practice. One Squadron in August 1940 for example did

Originally Posted by Seadog

You have never produced a single document stating that some of RAFFC was still using 87 octane and the burden of proof is upon you.

Of course I did. Ironically, just two posts above. Besides yo simply display the logical fellacy of the Invisible Pink Unicorn: you seem to believe that if you claim something, without being capable proving it, and if others don't prove you wrong, you are automatically right. Right? Well, its just utter nonsense. See: http://en.wikipedia.org/wiki/Invisible_Pink_Unicorn

All Figther Command Aircraft were operating on 87 octane previously; in March 1939 a decision was made to convert sixteen fighter Squadrons to 100 octane by September 1940, and in around May 1940 it was noted that 'certain' fighter squadrons were to be supplied with 100 octane fuel.

Certain, not all. Well its not too hard figure out what the other-than-certain Fighter Squadrons were still running on, my dear Watson?

The RAFFC flew 5700 sorties and the RAF issued about 4500 tons of 100 octane fuel during the 1st week of September. 5700 sorties at 75 gallons per sortie = 427500 gallons or 1374 tons (assuming every fighter does a dead stick landing with empty tanks, it only rises to 1650 tons). This leaves more than 3000 tons for use in RAFBC and all other assorted and sundry users, more than enough for every twin engined Merlin bomber and fighter to be using 100 octane fuel and still leave lots left over for use by RAFFC.

That's an interesting claim. Can you tell me how much 100 octane was spent on operational training, engine testing, run-in, was used up by Bomber Command's Blenheims etc..? Without that, your calculation is an extremely crude and wishful example..