Inaccurate performance data for BOB fighters in COD comparing to RL data

[Flanker35M]

S!

Crumpp, still some 17 years left of service, going for the full service time Anyways, when looking at that Spitfire Mk.II manual June 1940, paragraph 55 (stating it should be carefully noted) clearly says +12lbs up to 1000ft for take-off or maximum 3min. Rest seems to be +9lbs (all-out for 5min) with no alt restrictions. And continuous/max cruise is +7lbs. So that pretty much says it all IMHO.

Cleared for +12lbs but not for 5min or at any altitude. As that note says 5min is for +9lbs. Out of curiosity how different is the Merlin III used in Spitfire Mk.I being able to use+12lbs for 5min than Merlin XII on Spitfire Mk.II only cleared for take-off up to 1000ft / 3min? Devil is in the details it seems..

[ramstein]

In the spitfire my squad serviced at an airshow , we put 110 octane in the Spitfire (that was the highest grade we could find in 1980 for the airshow),, but I can't tell you how original the engine parts are or how it was tuned.. I can tell you it was fun to be very close to it, push it around the parking spot, and be inches from it as it taxied out and taxied back in after the flying...

It was a very smooth engine,,, no spitting, popping, or no cutting out in rolls...
It wasn't terribly bad on the ears,,, the only time I saw fire out the exhaust was when it first started... I can't say how the exhaust looks in flight because I never flew one..

[bongodriver]

Originally Posted by Crumpp

It is not a bureaucratic schedule.

I know it seems like a bunch of overkill. The convention is really all based on lots of experience, most of it very bad experiences.

Airplanes are not like cars, the engineering safety margins are so much lower just to achieve flight.

They just about managed to get that through to me at flight school and the 17 years spent as a commercial pilot and flight instructor, but I maintain it is a beaurocratic schedule and most probably the inconvenience of war forced some corners to be cut, one can assume they already knew the aircraft could fly, we're only talking about implementation of simple modifications in order to use a fuel that increases performance, my guess is at least one genius manged to figure out it might be quite handy in a fight.

[fruitbat]

To add to that, i believe it has been known to take risks in war, like every time you took off in the case of BoB.

People also apparently die.

People also try to do everything they possibly can to help stop that happening to them.

but i digress......