Someone comment on 100 octane aircraft, please!

[AbortedMan]

I'm at work and super curious about the 100 octane performance vs 109s.

Spitfire *and* Hurricane, of course. Can anyone that has been in a couple furballs with it let me know?...average combat/cruise speed, rate of climb, stability, temperatures?

[ACE-OF-ACES]

sweet

[Osprey]

Still think the Hurricane is a bit slow. 230mph S/L @ 6.25 & 2650rpm, this should be 260mph, tit pulled got 270mph which should be 290mph. Some wierd behaviour with the throttle (boost) now seemingly linked to the RPM and mixture intrinsically. I probably just need to understand how to get the best out of it though, I can't be doing it right atm.

[AbortedMan]

Originally Posted by Osprey

Still think the Hurricane is a bit slow. 230mph S/L @ 6.25 & 2650rpm, this should be 260mph, tit pulled got 270mph which should be 290mph. Some wierd behaviour with the throttle (boost) now seemingly linked to the RPM and mixture intrinsically. I probably just need to understand how to get the best out of it though, I can't be doing it right atm.

Remember B6 stated the boost gauges aren't updated yet so will still be showing the same numbers as last patch. Don't base calculations on max == 6.25lbs, fyi.

Also, how is the throttle action? Fixed?

[bongodriver]

Spit 1a 100 octane gives 12lbs boost with ABC selected and gives 9lbs boost on full throttle, the gauge still only shows up to 8lbs but if you put the mouse cursor over the gauge it shows actual readings.

another point with regards to performance, bearing in mind a test I recently did, the atmospheric model seems to be ISA +10...or 10 degrees C above standard conditions, and this is going to give a reduction in performance compared to data in the manuals, a rule of thumb or very rough and ready way to calculate density altitude is to add 1200' to your altitude for every 10 degrees above standard, so with the current atmosphere performance at 1000' should be roughly equivalent to performance at 2200' on the graphs.....but I somehow doubt that would equate to a loss of 20/30mph.

[notafinger!]

I was getting 290 with Spit & 280 with Hurricane at sea level.