ORIGINAL: SeamusG
Ok, I'm doing my homework. Macs Products header with a tuned pipe? Em, beginning to understand some of the comments that pattern planes can get to be pricey little pieces of art.
You got it right. I used an OS FX .61 with a 11x7 APC prop, MACs header and pipe which has worked flawlessly for me without a need of shortening to tune it. The XLT I built does have air Robart retracts but it can be built with fixed gear. IT was a bit of a trick getting all three gears into the airplane along with the air tank. The airtank is actually aft of the wing in the upper part of the fuselage.
She moves pretty damn fast through the air and seems to have an unlimited verticle. OR it atleast feels that way. She'll run out of sight if I'd let it. IT does awesome 400'+ loops and tracks straight as an arrow. It makes me look good with the way she tracks through the air.
I'd build another one in an heartbeat but commited to building a new Ultra Sport 1000 that I recently purchased. Quiet a project but will be fun....