Quote:
Originally Posted by Kwiatek
There is definilty bug in SPitfire MK II engine.
According to manual Spit MK II should have power settings:
- climbing power (30 minutes) - +9 lbs at 2850 RPMs
- max all level (5 minutes) - 9 lbs at 3000 RPMs
In Clod there is engine broken after flying at +6 1/2lbs at 2850 RPMs after ab. 10-15 minutes continous flying
If you apply +9 lbs at 2850 RPMs you could fly ab. 2-3 minutes then engine broke.
It is not correct that you cant even fly 30 minutes at 6 1/2 lbs 2850 RPMs if you should be able to fly such time with +9lbs 2850 RPMs.
Other hand Bf 109 E could fly all time at 1.35 Ata power settings without problem if it was only 5-minutes emergency power.
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I don't know if you had a look at the merlin em files so far. I've looked at them a year ago, so maybe this has changed, but at that time the Merlin III and XII were very identical. The nominal rpm was 2600 RPM for both. I assume that normal rpm is the value that can be maintained without critical overheat.
My impression is that the Merlin XII - as we have it know - is modeled more like a Merlin III running 100 octane (with +8? instead of +12 emergency boost).