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Re: Aileron Hinge Bushing
HOLY CRUD!!!! I need new glasses. When you look at them with a magnifier in strong light you CAN see there are bushings. I never saw them till I looked at the photos blown up, but they are there. My camera sees better close up than I do.
It DOES make more sense to have bushings since you could design the bracket around the best strength material, but bush the hole with something that won't gall with the pins.
Anyone know what the materials are? I would assume the early brackets were 1010 steel with a change to 4130 later, but before the BIG mistake when they changed to those cast junkers. Both 1010 and 4130 have good galling characteristics with regular lubrication, but on some of the gun parts in the Navy there were problems with Stainless Steel galling with them. I wouldn't use SS pins for the hinges unless the bushings were good with SS (I don't think SS is called out anyway, but I see a LOT of guys using SS fasteners because they don't corrode. It ISN'T always a good idea!).
Hank
Hank
HOLY CRUD!!!! I need new glasses. When you look at them with a magnifier in strong light you CAN see there are bushings. I never saw them till I looked at the photos blown up, but they are there. My camera sees better close up than I do.
It DOES make more sense to have bushings since you could design the bracket around the best strength material, but bush the hole with something that won't gall with the pins.
Anyone know what the materials are? I would assume the early brackets were 1010 steel with a change to 4130 later, but before the BIG mistake when they changed to those cast junkers. Both 1010 and 4130 have good galling characteristics with regular lubrication, but on some of the gun parts in the Navy there were problems with Stainless Steel galling with them. I wouldn't use SS pins for the hinges unless the bushings were good with SS (I don't think SS is called out anyway, but I see a LOT of guys using SS fasteners because they don't corrode. It ISN'T always a good idea!).
Hank
Hank
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