Peter Duniho wrote:

A heavier engine will dampen the initial acceleration (a
certain amount of the thrust is applied to accelerating the engine, rather
than the airframe to which it's attached), while a heavier airframe (ie
higher useful load) will allow higher forces to occur during that initial
acceleration.

Really?

Just how elastic do you think the connections between the airframe and
the engine are? When it comes to acceleration, they better form pretty
much one piece, don't you think?

Gross weight is what we accelerate, not components.

Or are you speaking metaphysically?


Jack