Quote:
Originally Posted by Crumpp
The January 1942 Spitfire Mk I Operating Notes clearly states in Notes on the Merlin engine that 100 Octane is for all operational units and all others will use 87 Octane.
The July 1940 Notes on the Merlin Engine only list 87 Octane operating limits and make no mention at all of 100 Octane. That is not to say 100 Octane was not in use. It was and the manual itself but not under the Notes on the Merlin engine references it "IF" the plane is equipped for it and "IF" the fuel is available.
"IF" would not even be in the manual "IF" all operational units were using the fuel in July 1940.
Any airframe using the fuel was doing so on a special issuance Notes on the Merlin Engine. The airframe serial number Operating Notes issued would reflect 100 Octane's use in that specific aircraft and once it becomes the standard fuel for the type, the General Information on the type Operating Notes will reflect that change.
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Once again Crumpp is blowing smoke:
The reason why the Pilot's Notes used the operating limits for 87 Octane has already been explained three times, but completely ignored by Crumpp. Pilot's Notes were modified using supplementary slips issued with the Pilot's Notes issued to the pilot by the unit to which he was sent.
This statement "
Any airframe using the fuel was doing so on a special issuance Notes on the Merlin Engine." is pure speculation on Crumpps part with no evidence whatsoever.
Provide documentary evidence that RAF pilots in frontline fighter squadrons were not allowed to use 100 Octane during the Battle of Britain.
Provide documentary evidence stating that RAF frontline fighter pilots were told not to use +12 lbs boost during the Battle of Britain.
Provide documentary evidence that RAF frontline fighter aircraft went into action using 87 Octane fuel.
Provide documentary evidence that the RAF restricted the issue and consumption of 100 octane fuel to selected squadrons.
All Crumpp has wasted the last 40 something pages on is speculation, and nothing else. He has not provided a single solitary piece of evidence bearing out any of his beliefs.