I've recently picked up an early SN Harmon Rocket 2 and as is always the case, "new to me" airplanes always end up slower, thirstier, and hotter than the rest of the fleet. I'll be spending the next few months, or years, taking her from what she is, to what she should be. In order not to flood this thread with too many variables, I'll make multiple threads with known issues.
Currently CHTs are quite limiting and I think some of that may be instrumentation (MGL iEFIS), some is the poor baffle sealing, and some is the very limited exit area. I'm running down a bunch of possibilities in the instrumentation department, and we've spend a bunch of time and a few tubes of red RTV sealing up the obvious leaks. As for the cowling exit, the lower cowling is nearly flush with the bottom of the fuselage. I'll try and attach some pictures.
Are/were the factory HR2 cowlings nearly flush, or did they have something more similar to other RVs with a 4" or so deep "tunnel" to duct the air out?
Currently CHTs are quite limiting and I think some of that may be instrumentation (MGL iEFIS), some is the poor baffle sealing, and some is the very limited exit area. I'm running down a bunch of possibilities in the instrumentation department, and we've spend a bunch of time and a few tubes of red RTV sealing up the obvious leaks. As for the cowling exit, the lower cowling is nearly flush with the bottom of the fuselage. I'll try and attach some pictures.
Are/were the factory HR2 cowlings nearly flush, or did they have something more similar to other RVs with a 4" or so deep "tunnel" to duct the air out?
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