Kermit3D
Well-Known Member
I’ve tried the size 8 and 10 in aviation leathercraft. 10 is too bulky. 8 too tight around chest. But generally their pelts are too bulky. McCoy pelts are 1/4 inch wool which is wearable.
The 1/4 inch fleece is specific to the B-6 jacket.
Eastman Leather and Goodwear Leather also make their B-6s with this specificity.
Beware, Aero Leather did not take this "detail" into account on their B-6... so it is bulkier.
The B-6 is an intermediate jacket. It is less bulky than the heavy jackets like B-3, ANJ-4, Irvin, ...
This is to facilitate the mobility of pilots in a narrow cockpit.