Bofor Gun info.

[Kongo-Otto]

Originally Posted by BadAim

So far as I know the Bofors (and the German 37, which is really the same gun) had only a contact fuse, with a timer so that the shell would explode at the end of it's range. I'll see what I can find.

The German Bofors Version was called 4 cm Flak 28, the 3,7 cm Flak 37 is a different design.
The German Wehrmacht also used a great amount of captured Russian, Polish, British, Norvegian and French 40mm Bofors which were then called 4 cm Flak(r) (r= russisch/ russian) or 4 cm Flak (n) (n= norwegisch/norvegian) etc.
The German 4 cm Bofors and the captured 40mm Bofors guns were mostly used in Norway, Denmark and France for Harbor and Airfield defence and very rarely mounted on vehicles.
Also most of this guns were used by Kriegsmarine and Luftwaffe units, few of these guns were also mounted on ships.

German 4 cm Flak 28:


British Q.F. 40mm Mk I Bofors:

[335th_GRAthos]

For the German side I expect to command this!

20mm Flakvierling 38


~S~

[winny]

I think BadAim is right. My grandfather was a bofors AA gunner during WW2 so I've got some books etc on the subject, found this in one of them.

The Bofors used a standard high-explosive shell with a sensitive point-detonating fuze designed to burst upon impact.* If the shell did not make contact with a target, the fuze destroyed the projectile at the tracer burnout range of approximately 3,500 yards.

I have no idea how reliable this is but it seems to make sense.

[Viking]

That's about correct as I can remember. I served on the Swedish motortorped boats 70- 71 and we used to bang away a lot on that gun the 40 mm lvakan m/36 since there was a lot of ammo in store since the war. Was like sitting in some machine that banged away at a slow pace and the projectile would only explode on impact and self-destruct at a far distance. You could see the detonations but no sound.

Viking