Ok so here is some doodle sheets with more detail around the propeller powerplant.
On an Bf109 or Me 109 the RPMs were about 3450 to 5000 RPM if the design is big thats alot of torque at the propeller blades.
What is the strength you begin to wonder of the airframe what is it made out of?
So is the airframe with its respect ro it being like an aircraft differant
from an aircraft?
Would the front of the airframe uaualy made up of cowling (light weight)
with the powerplant housed inside of engine mounts be more like the airframe of other parts of the aircraft being that it
is a spaceship?
How do you align and balance the flight control system when it
is designed to go in forward and backward motion to static air!
Will the airframe be made out of steel to operate the tremendious
weight and torque's associated with a large airplane spaceship!