Re: MBT-70
as only a few prototypes got built - It may not have gotten out of the mild steel prototype stage?.
Only articles I could find on it mention no thicknesses, but that it was to be layered armour (saw a mention of 2 layers so probably a simple spaced armour ?), but not of the Chobham type. That came later on the XM-1 that replaced it.
Andy
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