prflyer Posted August 24, 2015 Report Share Posted August 24, 2015 I could not find an answer by searching the forums. Did the Mooney factory apply corrosion proofing internally on any of the vintage Mooney models from the 60s? Thanks, Fernando Quote Link to comment Share on other sites More sharing options...
M20F Posted August 24, 2015 Report Share Posted August 24, 2015 My 67F is zinc chromated. Quote Link to comment Share on other sites More sharing options...
Raptor05121 Posted August 24, 2015 Report Share Posted August 24, 2015 I believe they did it for a few select years in the mid 60s. Someone more knowledgable will give those dates. Of course, a plan hangared and taken care of can be in much better shape than a zinc chromated one that has been sitting outside its entire life. Quote Link to comment Share on other sites More sharing options...
mooniac15u Posted August 24, 2015 Report Share Posted August 24, 2015 My 63D was zinc chromated. Quote Link to comment Share on other sites More sharing options...
rbridges Posted August 24, 2015 Report Share Posted August 24, 2015 same with my 65 c Quote Link to comment Share on other sites More sharing options...
M20F Posted August 24, 2015 Report Share Posted August 24, 2015 I do recall reading somewhere that it was an option not standard. No idea if that is the truth or just hanger talk. Quote Link to comment Share on other sites More sharing options...
carusoam Posted August 24, 2015 Report Share Posted August 24, 2015 65C was nicely green/yellow in the tail cone... -a- Quote Link to comment Share on other sites More sharing options...
Yetti Posted August 24, 2015 Report Share Posted August 24, 2015 depends on what you are talking about the tube structure got epoxy some time between the 60s and 1975 Quote Link to comment Share on other sites More sharing options...
1964-M20E Posted August 24, 2015 Report Share Posted August 24, 2015 My 64 E was not but my 67F is Quote Link to comment Share on other sites More sharing options...
RobertGary1 Posted August 24, 2015 Report Share Posted August 24, 2015 65C was nicely green/yellow in the tail cone... -a- I believe that's just primer. If you just had bare metal you'd get corrosion pretty fast. -Robert Quote Link to comment Share on other sites More sharing options...
DXB Posted August 24, 2015 Report Share Posted August 24, 2015 I believe that's just primer. If you just had bare metal you'd get corrosion pretty fast. -Robert Many of these older planes have the bare aluminum and are fine. My '68 C has the yellow zinc chromate Quote Link to comment Share on other sites More sharing options...
MyNameIsNobody Posted August 25, 2015 Report Share Posted August 25, 2015 I believe that's just primer. If you just had bare metal you'd get corrosion pretty fast. -Robert I believe you are not correct... 1 Quote Link to comment Share on other sites More sharing options...
prflyer Posted August 25, 2015 Author Report Share Posted August 25, 2015 Thanks everyone. Seems like it might have been an option. I know of at least one 65E that does not appear to be zinc chromated from the factory. However, if anyone has info on whether some years all airplanes were treated at the factory, that would be good to know. Fernando Quote Link to comment Share on other sites More sharing options...
HRM Posted August 25, 2015 Report Share Posted August 25, 2015 Thanks everyone. Seems like it might have been an option. I know of at least one 65E that does not appear to be zinc chromated from the factory. However, if anyone has info on whether some years all airplanes were treated at the factory, that would be good to know. So how do you tell if it was? My '65/6E is yellow green all over the inside. It is corrosion-free to a T (had the once-over by the legendary Bruce Jaeger and pronounced 'clean'). She's hangared, but in SETX that does not say much. Quote Link to comment Share on other sites More sharing options...
prflyer Posted August 26, 2015 Author Report Share Posted August 26, 2015 So how do you tell if it was? My '65/6E is yellow green all over the inside. It is corrosion-free to a T (had the once-over by the legendary Bruce Jaeger and pronounced 'clean'). She's hangared, but in SETX that does not say much. I'm no expert, but my understanding is that the yellow green inside your airplane is in fact the factory applied corrosion protection. Hopefully someone will know if there were any particular years and/or models where the factory applied the corrosion protection. Thanks, Fernando Quote Link to comment Share on other sites More sharing options...
Shadrach Posted August 26, 2015 Report Share Posted August 26, 2015 I believe that's just primer. If you just had bare metal you'd get corrosion pretty fast. -Robert It's zinc chromate primer and it is a corrosion inhibitor. The inside wings in my 67 are not treated with zinc chromate, but the fuselage is. There is some very very light ash on the inner surface of the wings from before it was treated with corrosion X. The bare skin has a thin layer of alclad (pure aluminum) on the outer skin. https://en.m.wikipedia.org/wiki/Alclad 2 Quote Link to comment Share on other sites More sharing options...
DXB Posted August 26, 2015 Report Share Posted August 26, 2015 It's zinc chromate primer and it is a corrosion inhibitor. The inside wings in my 67 are not treated with zinc chromate, but the fuselage is. There is some very very light ash on the inner surface of the wings from before it was treated with corrosion X. The bare skin has a thin layer of alclad (pure aluminum) on the outer skin. https://en.m.wikipedia.org/wiki/Alclad I think my '68 is the same, except the 2 spars , which have the yellow zinc chromate for their full lengths. Interesting info on Alclad. 1 Quote Link to comment Share on other sites More sharing options...
MB65E Posted August 26, 2015 Report Share Posted August 26, 2015 My 65E has the steel tubes painted a brownish primer/paint. The H-Stab is zinc cromated. Small steel angles in the fuselage are painted. No skins in the tail are primed. Nothing in the wings except the centers of the spars. Main, Rear, aft carry thru. All random to me... -Matt Quote Link to comment Share on other sites More sharing options...
Shadrach Posted August 26, 2015 Report Share Posted August 26, 2015 I think my '68 is the same, except the 2 spars , which have the yellow zinc chromate for their full lengths. Interesting info on Alclad. Yes, the spar and some stringers in the wings are also treated! Quote Link to comment Share on other sites More sharing options...
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