[lordish2001]

Lordish, are you familiar with the difference between "True Air Speed" (TAS) and "Indicated Air Speed" (IAS)? In short, it means that the higher altitude a plane flies at, The LESS accurate the airspeed indicator reading is. This is because of the thinner air at altitude.
So your actual or TAS might be quite higher than the indicator says it is. (Also trim is really critical with the P51- but that's another subject).

I'm a pilot IRL so I really understand both well. However, I can't believe the difference between TAS and IAS is over 200mph at only Angels 20. Where can I find the TAS since there's no thermometer in the A/C to give me the temp to hand figure it. (not at least I can find)

As for the trim, please enlighten me. I'll do anything to improve this a/c's performance. I'm tired of just touching the stick and stalling, even at 25% fuel!

lordish