poadeleted20
Deleted
- Joined
- Apr 8, 2005
- Messages
- 31,250
AFAIK, there were no wing structural differences between from A through E until the composite spar was retrofitted in the late 80's(?). Unfortunately, I wouldn't know where to begin to look for the guy I'd want to ask about that (AMCS Mullins, my shop chief when I was Airframes Branch Officer in late '75).In the book Intruder: The Operational History Of Grumman's A-6, on pages 130-131, a pilot describes the wing as "skin-stressed." Said the A model had no main spar and described it as the aircraft's biggest design flaw. He goes on to cite three wing failures that he knows of including one at Boardman Range (VA-145) in 1969, one in Loas (VA-196) in 1970, and one at Whidbey (VA-145) while in the pattern in 1970.