Yeah.....I eventually saw that, question is still can anyone find the oficial DTD number for 100 octane?

Irrelevant, there is pretty much no upper price limit in times of war...hence why Britain was 'broke' by the end of war.

I am sure you can find all kinds of references to 100 Octane fuel in the 1930's.

Here is the Popular Science archives to help you out!

http://www.popsci.com/archives

It was quite a leap forward in fuel technology and was greatly anticipated.

Help me how?.....I wasn't highlighting surprise at reference to 100 octane prior to 1939, it's practically common knowlege.

No the real surprise is that you 'still' insist 87 octane was the main fuel in use......has anyone asked you to produce a shred of 'evidence' yet?

Britain was 'broke' by 1941, that's why L-L came into existence in the first place. The British could no longer pay the US supplies.

Fuel costs were a factor, reading the papers show that the British were quite aware and sensitive of the costs. Bomber Command's request for uniform supply of stations with 100 octane was turned down, even at the cost of a rather awkward system with both 87 and 100 octane stocks at these stations.

The British got their fuel supplies from the market, and had limited amount of cash. Try doing some shopping without money.. things don't come free, even in war.

Not issued. Initially using a provisional specification R.D.E./F/100, later manuals refer to 87 octane, 100 octane or 150 octane fuels as such.

Again,

Read the Operating Notes.....Spitfire Mk I, July 1940:

http://img802.imageshack.us/img802/5...pecificati.png

I respect your opinion, of course. But with this logic, you can not disaprove anything, really. Somebody mentioned orange crows in here already... ;)

With all due respect - there is lots of literature written about this era. It's one of the most researched in all aspects. I've never heard of pilot account mentioning something like ''Oh blimey I've been just transferred to this new squadron and they still fly on low octane fuel and gosh is it difficult now to fight the Jerry''. I hope you agree that the difference was big enough to be mentioned. Somewhere. I've just spent last year reading all these books and articles again while I am involved in this sim. Fascinating stuff on both sides. No mention of 87 octanes whatsoever.

On the other hand, there is plenty of evidence (direct and indirect) about 100 octane spirit since the French campaign. Please don't get yourself confused with certain claims some people here are trying to make, these theories are rather ridiculous. :grin:

Although I agree we never know if all the RAF fighters got only 100 octane fuel, it is the most relevant for what this sim represents. Unless you want to fly some OTU Spitfire in Scotland. Yet, we haven't got it modelled. :(

All aircraft fuel must be specified.

Just the fact it is the specified fuel and the FC consumed millions of gallons of it.