NZ carrier documents

[Rob Beale]

Interesting description of the development of ABP3 plate - much forethought to compile a summary at the time.
I had not realised that it was malleability that helped it to be weldable.

There is a description of the manufacture, pp133-139, 225, 305
All plates were profile cut at the mill before issue to the maufacturers.

Every plate was tested by .303" ball for thin (side and rear) plates and AP ammo for thicker (front) plates. It confirms what I had heard years ago about the depressions in the side plates and narrow cavities in the front.

The plates and the welds were ballisticaly tested in the development.
The opinion of a WW1 veteran about rivets vs welds was proved to be false p85

Rob