Seems like you might be conflating two different rounds here.II./JG77_Kemp wrote:I think the point of this practice ammunition was to shoot at targets that were towed by other planes. They would blow up in the air before causing any danger to the towing plane, but that does not mean that they should not do any damage at all at close ranges. I think the point was also to explode (splash) on contact, so the pilot could visually see, what he was hitting.
for the übungsmunitinon:
"blowing up in the air" is not a helpful description unfortunately.
The round "self destructs", it doesn't "blow up" in thes way that most people think of when they describe something "blowing up". The reason for self destruct is to destroy the aerodynamics of the round which rapidly increases its drag and causes it to drop to the ground. The destruction mechanism is basically powerful enough to deform the round's shape.
This is ideal for range firing in particular where you don't want poorly aimed rounds disappearing 1500m beyond the end of the range, necessarily. It also helps in the air too, as the extra altitude typically means rounds will fly a lot further from the initial location and could land on some poor farmers glasshouse
The mass of the round is less than 13grams.
The bullet that was "designed to explode on contact so the pilot could visually see" was not the übungsmunition, but the "beobachtung" (observation) round. This is a seperate round which is also modelled/ available in CloD. This round "detonated" a "small pallet of tetryl which in turn ignites the white phosphorus in the nose of the projectile during sudden deceleration" (wiki). This is also not really an explosive round - the round does not have a percussive/ explosive element. It was horrific against human/ animal flesh though, as you can probably imagine.