I have a Fisher FP202 Koala with hinge pins holding the upper cowl on (the lower cowl is held on with screws). They work great - takes about 10 seconds to get the cowl off for an engine check, and about the same to put it back on. One pin down each side and two much shorter ones across the front. They're about 20" long but they just slide in - no need for tools or equipment. Each pin has a right angle bend at the end to make a kind of handle, which makes it much easier to slide the pins in. There's also a small stud (basically a screw head sticking out about 1/4") in teh lower cowl that the right angle bits clip into to stop the pins from sliding in flight. It can be nasty if the pins slide out into the prop - and the cowl coming off is not the worst bit.
Cheers, Tony On 26 November 2014 at 05:44, Chris Kinnaman via KRnet <krnet at list.krnet.org > wrote: > I seem to recall an article in Sport Aviation many years ago about a > Midget Mustang builder who attached the cheek cowls with piano hinges. When > installing the wires, he would lube them with something which I have > forgotten and spin them slowly with a drill while running them in, > reporting no problem with that method. This was before powered > screwdrivers. MM cheek cowls are pretty long but the curve is not too > sharp, so, not sure if the drill technique would work here. > > Chris > > On 11/23/2014 8:52 PM, Mark Langford via KRnet wrote: > >> I found several photos detailing the hinge joint installation, and have >> put them near the bottom of http://www.n56ml.com/cowling.html. Looking >> at the time stamps on the pictures, this process took me four hours from >> start to finish to fasten the hinges to the top of the cowling (judging >> from the photo timestamps). It went somewhat faster on the bottom because >> the location was predetermined. Something I've learned since then is to use >> the narrowest hinges available to save weight. They'll be fine... >> >> > > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
