Quote:
Originally Posted by TomcatViP
In the series of " What archives tells us" here is the FLIGHT archives that I cited two days ago :
- There was no 100 octane fuel usage during BoB in the FC. Here I am putting my money on British pride that would hve pushed forward any of its usage (ok Brits are not French but never the less  )
- in 1941 increased power Merlin's had 9lb boost level
- 100 oct fuel was used by some aircraft in the RN (Fulmar) fitted with special engines such as the Merlin VIII (presumably to compensate for the extra weight of the 2nd crew member and low alt missions)
- In 1941 planes were still using 87 octane such as was the Hurricane with Merlin XX
Sources : ( http://www.flightglobal.com/pdfarchi...0-%201286.html) |
Hi TomcatVIP, interesting claim given the overwhelming evidence for widespread use of 100 Octane fuel during the Battle of Britain. Perhaps there is new counter evidence in this document? EDIT: I found you post on page 39 (post 383 of this thread) that has a working link.
I don’t see anywhere in that document the statement that 100 Octane fuel was not used in the Battle of Britain, or on the contrary, that 87 Octane was used by Spitfires or Hurricanes during the Battle of Britain. Nor I could not find any mention that “In 1941 planes were still using 87 octane such as was the Hurricane with Merlin XX”.
In response to your claim in point 3 of your post (434) on page 44, and I quote
you said "the petrol normally used at that time was 87 Octane" I find this slightly misleading as the time in question is 1937, which you did not state nor was there an attempt to put the quote in context. Whilst it does say
on Page 557 of the original text (link) that “the petrol normally used at that time was 87 Octane” it is referring a to pre-war flight endurance test in 1937 where the Spitfire in question used “fuel of a higher Octane” (than 87 Octane). Note, this is stating that in 1937 the petrol normally used was 87 Octane – it does not mention the normal Octane used during the Battle of Britain 3 years later in 1940. I fail to see the significance of this quote regarding Octane usage during the Battle of Britain when we examine the whole quote.
If I have missed any quotes in the document regarding 87 or 100 Octane fuel usage during the Battle of Britain, and I may well have done considering it's a huge document, could you please quote them directly and list the page in the document that they appear so we may examine them in full. For example as I have done above by stating the quote and it’s appearance on page 557 with a working link to the page. Thanks.
Quote:
Originally Posted by MoGas
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MoGas, could you post a summary or even better images of the article you are referring to in english since it seems the magazine you are referring to requires a subscription.
Thanks, Bounder