brien23
Cleared for Takeoff
The good the bad and the ugly side of buying a Twin Comanche. What area should one look at that might be specific to the twin Comanche.
There is a member named Kristin who is a pilot, maintenance engineer and aviation professional on this forum who owns and flies a Twin Comanche. You might want to try to PM her.
Paging @Kristin if she's around...
The engines are pretty much bulletproof, which is nice. Don't know a ton of what to check on the airframe.
is that the same person who's over on the piper forum? if so she seems a lot more active over there but I've always been curious about the twinkie, wait that sounds wrong....always wanted to check out a twin comanche as well.
Big issues are gear studs, gear cables, and the horizontal bearings. A couple of ad's on the tail. Simpler issues are gear bungee replacement, heater ad.
Has your co-worker checked the grounds for the solenoid on the back of the spar? I had that problem too, cleaning the grounds solved it. "Vapor lock the aux bladder"? Never heard of that, but if you run the tip dry air can be trapped in the fuel line and on the next flight could stop the engine when you change over. There's a purge procedure during preflight, is that what you mean?My co-worker owns a twinkie, latest bug a wingtip tank that won't feed due to electrical elves running rampant through the system and not opening the valve (you need electrical power to feed out the tiptanks, yikes). Also has tips that vapor lock the aux bladder if you run the tip dry to engine cough, since the tip lines run through the aux system. Ruh roh.
Has your co-worker checked the grounds for the solenoid on the back of the spar? I had that problem too, cleaning the grounds solved it. "Vapor lock the aux bladder"? Never heard of that, but if you run the tip dry air can be trapped in the fuel line and on the next flight could stop the engine when you change over. There's a purge procedure during preflight, is that what you mean?
dtuuri
I think I used star washers for better contact too.Forgive me for paraphrasing his description of the problem, but your scenario sounds very much plausible. Regarding the electrics problem with the tip valves, I'll def mention your resolution to my coworker. Thanks for the "tip", see what I did there ..I amuse myself sometimes.