Pe, remember this is about 1400 meters elevation, so it is closer to 4.8hp or so. Still, 30+ lb of thrust @ 56 knots and SILENCE is an excellent figure, and transition is far more important than peak power.

Jeff, your engine stands look great! What plane will get that DA-150? I really miss flying with you, Brian Copfer, and Dave Fox, and especially my pal Dick H. (I am Dr. Terry's son, now live 2500 miles away).

Pat, those pipes will surely be buried in the fuse. Jeff (Blaylock) is a highly-skilled IMAC competitor in the Unlimited class, and is a Contest Director, and wouldn't risk losing a contest by blowing the scale points. Also, judging by his signature line, Dick Hanson will have something to do with it. Building the pipes into the fuse just takes a bit of planning and thinking "outside the box". and some skill as a fabricator. Of course these are now in short supply! Also, get enough air flow past the pipes and throught the fuse and we shouldn't have any heat issues. Of course flying in some god-forsaken desert would necessitate other cooling methodology.