Hey guys,
Mostly lurk here, and enjoy the EXCELLENT site, and all the hard work that everybody has done.....I just ain't got the words......
Anyway, will chance a few words.
I've flown the aluminum a couple times (dual control).
Both flights we burned 100LL, so the Manifold Pressure was waaaay limited. I don't think we ever pulled more than 50 inches, maybe a little less. It's been a loooong time, but the owner distinctly warned me to not push the MP up too high or we might hole a piston. Didn't get up in the Flight Levels as I recall, but did get above 10000 ft for a few minutes. It was clearly evident that the airplane wanted more power. No way it would let you trim it. No matter what I did, the ball would be out, or we would slip, take yer' pick. Until we started down. Just trimmed it over, out of like 16 thousand for 10...Zoom! It's CLEAN. Indicated airspeed quickly went past 250 and then it just felt *so right*. Much like a jet, except friggin LOUD. Less vibration than I expected. Once the speed got up for that brief moment, I did notice a LOT of ram air effect on the Manifold Pressure. More than I've seen on anything else I've flown. Don't know if this is normal or not. It wasn't a bitch, just a detail. When we leveled off at 10, after a bit the power needed to be bumped up, because we had slowed down and lost a couple inches of MP from reduced ram air.
OK. After all that, and thinking a while about all the high altitude flying I've done,....Now don't think I'm trying to preach gospel, because I certainly ain't a Mustang owner, but I'm of the opinion that above say, FL270, or thereabouts, you don't want to do ANYTHING that will slow you down. And for sure that's true above FL330. Up there, ram air is what you gotta have, to get her up on the step.
So, that means high altitude ACM in the Mustang is just plain using the airplane wrong (in my humble opinion). It's a runner, not a wrestler, or a dancer. When the enemy dives away, let him. Now you've got an altitude (energy) advantage on him, and forced him to disengage you and/or the bomber stream. Now all ya gotta do is wait for him to climb back up, and make him waste all his gas doing it all over again. Bottom line, he ain't shooting at anybody for a minute, and you can pounce and zoom back up at your leisure, holding him at bay. You're making him run at max continuous power for an extended period, and he can't tanker fuel like you do, so eventually he's gotta' break it off and go home.
Historically, the Mustang was never known as the greatest 1 on 1 dogfighter, although it was good enough in that role if exceptionally well flown. It was fast (particularly in cruise), and had legs. That's it's claim to fame. Ours emulate that fairly well, I think. They're certainly plenty of fun, and that's the main thing.