40 mm Bofors AA guns made in GB and US

[Stellan Bojerud (RIP)]

Originally posted by Gunner


The Kerrison Predictor was a maze of gears and spinning bits that today is replaced by a small computer. For its time it was the cat's meow and remarkably improved the single shot kill probability of the 40mm. (SSKP is the statistical way we Bird Gunners calculate a gun's efficiency). I would dearly love to acquire a Kerrison Predictor to display with our 40mm.

I am sorry that I dont have one to give you. Only this pic of a Kerrison Predictor. US 211th AA Bn Leyte Oct 27th 1944.