Why do some cargo planes have their cargo ramp as part of their nose rather than under their tail, as traditional?

Question

Why do some cargo planes have their cargo ramp as part of their nose rather than under their tail, as traditional?

In: Engineering

Answer 1

Some large planes have the tail section much higher off the ground.

The weight bearing structures and wheels are towards the front. This makes front access better.

The lowest point on the plane (low center of gravity and most stable ride) is also nearest the front. This makes front access better.

High clearance for the wings and massive engines happens when the wings are very high on the plane. This tends to work best with most of the hardware closer to the front, including front access to the cargo bay.