Originally Posted by
Ascend Charlie
Still on twins OEI, when only one engine is pumping power big-time into the MGB, it is getting it asymmetrically, instead of one from each side. This puts stresses on the gear teeth, bearings, MGB supports, and the little people inside the box putting coal onto the fire.
The exception of course is the B212 / 412 where the engines feed to a combining box before it goes to the MGB by a single shaft.
Yeah, but if you're burning up OEI engine limit time the engine gets changed, not the MGB. The MGB is designed for one engine pumping power big-time into it from one side. Just as the CBOX in 212/412 is designed for one engine pumping power big-time into it from one side.