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Old 04-18-2012, 05:25 AM
41Sqn_Banks 41Sqn_Banks is offline
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Quote:
Originally Posted by Crumpp View Post
If the aircraft in service were most commonly using 100 Octane, those limits would be the ones listed under the limiting Operating Conditions of the Pilots Operating Notes.

That is how it works.

The 87 Octane limiting operating conditions are published as the predominate operating limits of the aircraft in June 1940. References to 100 Octane are minor footnotes denoting specialized circumstances that are not the common configuration.
So how do you know it worked that way? Source please.

Here is evidence that it didn't work that way:

Hurricane I "operational limitations" May 1941 (thanks Klem):

http://forum.1cpublishing.eu/attachm...4&d=1334674718
http://forum.1cpublishing.eu/attachm...5&d=1334674727

Spitfire I "operational limitations" January 1942 (I'm sure someone has a better copy of this)

http://forum.1cpublishing.eu/attachm...5&d=1334723739
http://forum.1cpublishing.eu/attachm...6&d=1334723745

Merlin II, II and V "operational limitations" November 1940

http://forum.1cpublishing.eu/attachm...7&d=1334724557
http://forum.1cpublishing.eu/attachm...8&d=1334724563
http://forum.1cpublishing.eu/attachm...9&d=1334724569

In all of these publications 100 octane fuel and +12 is only a "minor footnote" and the "All out" limit is given as +6 1/4.
Attached Images
File Type: jpg SpitfireIJanuary1942_0.jpg (118.6 KB, 18 views)
File Type: jpg SpitfireIJanuary1942_1.jpg (116.4 KB, 14 views)
File Type: jpg MerlinNovember1940_0.jpg (120.7 KB, 14 views)
File Type: jpg MerlinNovember1940_1.jpg (106.3 KB, 15 views)
File Type: jpg MerlinNovember1940_2.jpg (162.6 KB, 23 views)