Inaccurate performance data for BOB fighters in COD comparing to RL data

[TomcatViP]

Originally Posted by NZtyphoon

Excellent? A small understatement:

Page 13 "Suggest therefore that Shell be asked to import the whole of 500,000 gallons at their own expense"

page 19 (30-1-41) "Only a small portion of this percentage of 100 Octane Spirit is yet to be delivered, but the balance is now on the water according to our latest advices from the SHELL Company."

page 55 (22-2-41) 2 "Meantime I have spoken to Captain Jones of the Shell Company and informed him that we require 100,000 gallons (or some substantial portion thereof) of Octane 100 to be ordered at once for delivery..." (Group Captain Department of Supply)

page 59 (19-2-41) Cable to Shell "It is a provision of the new contracts about to be entered into with your company and the Vacuum Oil Company....The Department of Air now desires...that 1,000,000 gallons of 100 octane base fuel be substituted in lieu thereof...(Deputy Director of Contracts to General Manager Shell)

page 60 (19-2-41) Similar cable to Vacuum Oil.

page 69 (31-10-40) "Shell now propose to import 100 Octane Base Spirit in lieu of 100 Octane spirit already mixed."

and lots more besides - bottom line Australian Government ordered supplies of 100 octane directly from oil companies Shell and Vacuum

Oh Yeah it's a great document. And thx for that. But what is buzzing me as hell is why are you so one sided in your citation.

In the doc they said that as of Jan/feb 41, no op plane needs 100Oct fuel.
They are also concerned abt what kind of fuel shld be used in the engines of the US planes they ordered (some seems to be outsourced from some French former order) as the Octane quality seemed higher than what they were presently using.

In all their discussion I hve read so far the 100oct fuel is to be mixed with lower grade (old stocks such as basic 73 octane fuel)and additive (TEL) to obtain grade of 95, 90 and 87 octane according to the types of eng in OP use.

They even estimate the quantity of needed 100 oct to be blended in to 95 octane fuel for their operational fighter(US fighters?). In no way they are mentionning any type requiring 100 oct fuel. (14.2.1941 - entry nbr sixty-eight - see bellow - extracted from http://recordsearch.naa.gov.au/)

The price of 1 gallon of 100 oct fuel is fixed at 18 cents from Vacuum (company name). It wld be intersting to know what was the price for other grade (87 mainly)

Regarding the Brit situation it is interesting to note that if in August 40 they envisoned a large use of 100 octane, in the latest document (see attached files) even in feb 1941 they still hve no direct use of that grade in their fighters

Pls that time don't wall text or insult me. Thx in advance.