[Buckeye30]

USAAF B-24 nose turrets (Emerson and Consolidated) originally had felt sealing which lost it's shape with use so Base Air Depot Area (UK) designed a more permanent type to reduce draughts. There must have been even more of a problem in the Pacific where B-24Ds were having Consolidated turrets fitted at the Hawaiian Depot; also the Modification Centre at Oklahoma City was doing the same for anti-sub Liberators in the UK. I don't know whether the problem there was ever resolved.....


Nick