BB Section?

As good a name as any for now. It stands for ‘Battery Box Section’ – meaning above the frame and below the cab.

1mm Corner Radius

Waking up this morning I was looking at photographs of GP-7 locomotives and having my first cup of coffee and realized that the radius used on the hoods was not crazy excessive. With that in mind I changed the radius on the corners of the BB section from .3mm to .1mm – full size that would be from about 5-5/8″ radius to a 1-7/8 radius.

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