ORIGINAL: ScottMcM
One of my first planes was a Miss Martha, with a GP42 in it. Awesome little engine....wish I had not sold it.
I have a brand new GP42 I could part with
Eitherway the TT line of engines are great value and power. I have had TT .46 Pro's out run equivlent .46 OS's (and I love OS's) I have a well used TT .61 Pro I currently run the snot out of on a full length Mac's tuned pipe turning an APC 10x8 at 15,000 RPM static (on the ground, they spin higher when unloaded in the air). So, I have no qualms recomending their engines.