So your Pilot notes are incomplete. That is, they are missing the Amendments.

Instructions issued 20-3-40.
http://www.wwiiaircraftperformance.org/ap1590b.jpg


We have yet to see the identity of these 16 fighter squadrons from you Eugene.

Here is the page from "Operational Notes for Pilots on Merlin II and III, 2nd Edition January 1939".
As I'm holding it in my hands right now I can assure you that it is not photo-shopped.

Actually I was wrong, the use of higher boost than +6 1/4 was according to this manual not only allowed for take-off but also for emergency.

Please read the other pages from the manual, e.g.
http://forum.1cpublishing.eu/attachm...1&d=1332111649
http://forum.1cpublishing.eu/attachm...3&d=1332111666

Not necessarily. Air Publications have a "disclaimer" at the first page. Orders or leaflets are the overriding authority in case they are contradicting to the initial publication or a amendment list. So even if it wouldn't be mentioned in the Pilot's Notes of June 1940 (which it is, see post above), the leaflet from March that authorized the use would have priority.

12lbs boost, get voting

http://www.il2bugtracker.com/issues/174

Can I ask again for a link to the notes you are looking at or the parts where they refer to the propeller in use or the section on protection for the pilot.

The notes you quote do not seem to tie up to what is know about the updated version of the Spitfire in use during the BOB.

I am happy to be wrong but would like to look into it in more detail

Do try to clue in Eugene.

1. testing of 100 octane fuel was completed in 1939.

2. conversion to 12 lb boost was started in early 1940.

3. before the BoB started, ~30 squadrons of Spitfires and Hurricanes are known to have been converted to 12 lb boost. These squadrons would be those that would most likely come in contact with the Luftwaffe.

4. by the end of the BoB, Fighter Command had converted to 12lb boost.

5. there was never a shortage of 100 octane fuel.

6. stock of 100 octane fuel had doubled by the time the BoB ended.

7. the 800,000 tons of 100 octane reserve was not reached till late 1941.

8. 87 octane fuel was the predominant fuel used by the RAF as other Commands and units used 87 octane fuel.

9. 100 octane was the predominant fuel used by Fighter Command.

10. the 16 + 2 was a pre-war plan that was scraped due to the national emergency.

I have read those Banks. You misunderstand what I wrote. A.P. 1590B/J.2-W is incorporated into the June 1940 Pilots Operating Notes.

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.

Yes that too. :) He still does not have an complete Pilot Notes.

I don't have a link Glider. These are not posted on some website but part of my collection. I scan the pages and post them.

Exactly. Quite a large "Fly in the Ointment" for silly claims like:

And depending on the dates you pick for the battle to be over:

You wonder why I question what you claim "is known." Facts are it is not known.