That was probably to match the curved internal contours of the M4A1 hull.
] On Behalf Of Terry
Sent: Sunday, June 16, 2013 2:16 PM
To: Joe DeMarco ; G104@yahoogroups.com
Subject: Re: [G104] M4A3E4 snr. 56797 restauration
Interesting that the long horizontal tanks are a half-round section. My
first thought was, why not square to use all the available space, but then
realized there is no low point on a flat bottom. Smart guys in 1942!