No problem.
BK-7,5 in Hs-129B.
Despite the failure of the Ju-88 the luftwaffe insisted and sought another more reliable gun platform for the BK.
The outcomer was the Hs-129
"Fliegende Pak", a BK-7,5 was placed in a experimental Hs-129B in late 1943 and that make the birth of the B-3 variant.
The B-3 installed the 75mm automatic gun in a bulgeous belly pod and his 12 shot rotating magazine fully embeded in the fuselage. The empy cases were ejected in the rear of the bulge.
This mounting was not jettisonable and due the Hs-129 never received his promised Isotta-Fraschini 1000hp radials it reduced the max speed about 48 mk/h.
The gun was aimed by a Zielfenrohr 4x telescopic gunsight placed below the normal reflex Revi C-12.
Despite the performace shortcomings the mounting was reliable and powerful, most of the 26 B-3 manufactured were used by the attack squadron
SlachtGeschwader 9 (SG 9) over East Prussia, Poland and the Reich territory in the closing months of 1944 and 1945.
In several cases they achieved kills over heavies like the Iosif Stalin tank with a single shot.
The total weight of the BK 7,5 and his feeder in this variant was 1100 kg and his rate of fire 30-35 round per minute.
HS-129B-3.
