[archy]

All those are there as the 3rd backup. Manual traverse and elevation. 105-D “choke” sight (optics) slaved to the main gun. Manual blaster to fire the gun. Its always been there and always will be.

But no belly escape hatch for the driver. I hope that's for better mine resistance and not just a cost-cutting feature. It bothers me.

[Delta 21]

That hatch was a bitch in the M-60s. You sat more upright as well. Driving (everything, always) buttoned up was much nicer in the M-1. The seat was reclined just about horizontal. Accelerator is like a motorcycle twisting the grips. It was weird at first.