GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Hello,
Sorry but this is a wrong explanaition and claim.
The Jumo 004B was inferior to the Jumo 004A, because it was developed as a save alloy engine, able to be mass produced.
The Jumo 004A was from higher grade alloys, which were short at Germany during the war and the Jumo 004A was more reliable, more powerfull and had a longer service life then the Jumo 004B.
The 004A was heavier, had a shorter service life and suffered from harmonic vibration at certain RPM. The 004B produced slightly less thrust but was lighter than the 004A, had a longer service life and were modular so they could be changed on the aircraft quickly in the field.