Swiss Brandt Bomb Zunder 37 (BZ 37) - used for the new, cylindrical, Swiss bombs of 6.5kg, 12kg and 50kg entering in service in the 1930s and in use till after ww2
Impact fuze that could also be equipped with a delay sleeve for delay times between 2.0 and 4.4 s
The BZ 37 bomb fuze activated at impact speeds above 160 km/h on hard ground, and above 320 km/h on swamps and water if the impact angle was greater than 20°
- a drawing (Zeichnung) M18948 dated December 1940
The only difference I can see with the drawing is that the percussion pin is emphsized but may be someone with a more expert eye can find more on this drawing M19411 dated June 1941
Impact fuze that could also be equipped with a delay sleeve for delay times between 2.0 and 4.4 s
The BZ 37 bomb fuze activated at impact speeds above 160 km/h on hard ground, and above 320 km/h on swamps and water if the impact angle was greater than 20°
- a drawing (Zeichnung) M18948 dated December 1940
The only difference I can see with the drawing is that the percussion pin is emphsized but may be someone with a more expert eye can find more on this drawing M19411 dated June 1941