Here's a couple more RAF Hurricane squadron Operations Record Books that mention 100 octane fuel.

http://www.wwiiaircraftperformance.o...100-octane.jpg

http://www.wwiiaircraftperformance.o...100-octane.jpg

Which says that it was tested and later that it wasn´t avaiable...

Hmmmm, no 100 octane at Shawberry. Shawberry!!!!! Well, there you have it, then. (He misspelled "octane" as well, another indicator that this whole 100 octane thing is a hoax).

Good catch!

When viewed in context the picture is clearer. Other units and stations at the time were clearly doing quite a bit more than "tested" 100 octane:

151 Squadron
http://www.wwiiaircraftperformance.o...rb-16feb40.jpg

611 Squadron
http://www.spitfireperformance.com/no611-100oct.jpg

74 Squadron
http://www.spitfireperformance.com/no74-100oct.jpg

605 Squadron left Hawkinge on 28 May 1940 where 100 octane was obviously present enroute to Drem, also which obviously had 100 octane. For some reason they stopped over at Shawbury, which I understand was a Flying Training School and apparently didn't stock 100 octane ("unavailable"). It's interesting that it was determined that the Squadron was unable to proceed further without the 100 octane fuel. This suggests that once having converted to 100 octane, whatever fuel the flying school was using (87 octane?) was unsuitable.

610 Squadron Spitfire Mk I at Hawkinge in early July 1940. Note the petrol bowser marked for 100 octane fuel.
http://www.spitfireperformance.com/n...e-july40-b.jpg

100 octane was required at Drem, 605 Squadron's destination, as well as Debden where 504 Squadron was based.

http://www.wwiiaircraftperformance.o...0oct-issue.jpg

Obviously Drem was stocked with 100 octane fuel by February 1940

602 Squadron
http://www.spitfireperformance.com/6...-100octane.jpg

Fighter Station, With the Spitfires in Scotland. Flight, No. 1631 Vol. XXXVII, March 28, 1940 (602 Squadron at Drem)

111 Squadron
http://www.wwiiaircraftperformance.o...100-octane.jpg

End of story.

(reminds me awfully of the 150 grade tale :D )

Training schools didn't have 100 octane that was always the intention.

Remembering Crumpp insistance that the changes required to the aircraft/engine were extensive, its interesting to note how quickly the change over took place. On 15th Feb the squadron was released but found time to take part in some practice missions, drain the tanks for 100 Octane and the next day the squadron was available. Its also worth noting that Drem is a small satallite station with a limited infrastructure apart from day to day maintanence and fairly simple repair facilities.

Glider remember we are talking RAF here, they had to figure out which way to turn the spanner to take out the spark plugs :grin:

People should know when they are conquered.

Yeah, but don't take it too hard.

True story. I did a five year apprenticeship in the FAA in the early 70’s. Part way through the third year of the course by which time it’s fair to say that while far from being qualified, we didn’t count ourselves as being totally without skills. We had to do a whole day session on how to use a hammer. The instructor recognised that this was stupid, signed us off as having passed and let us catch up on revision, homework etc. So as they say, anything is possible