I definitely agree that unless your plan is to stay in the small jets, don't invest 85% of the cost of a .91/fan combo into a smaller setup. The O.S. .46 is about $10-$30 cheaper than the O.S. .91, and the same is true for the Turbax v. Dynamax setups. If you're concerned about high-altitude performance, then I would definitely steer more toward the .91. Ther are lots of kits out there that would have no problem flying at the altitudes you're talking about. Someone mentioned the TGA F-15s, and they would certainly fly without problems at your altitude. If you're considering those, I'd go with the tractor version for sure.

Yellow Aircraft has some great airplanes and at hard-to-beat prices, too. If you have any questions about those, give me an email.

HORNET1788,

How are you? Haven't heard from you since you bought the kit. Have you started it? How's it coming? Did you ever decide which way you were going to go with the wings? Let me know. Thanks for the good word, too! Say Hi to your Mom for me (that was your Mom I talked to, right?).

Good luck, and welcome to jets!