The engine is mounted at the wing's leading edge and powers the trailing edge-mounted pusher propeller through an extension shaft.

The engine is mounted underneath the center of the wing and drives the pusher propeller though a short extension shaft.

A combining reduction gearbox was driven via extension shafts from the power sections.

Single engines in the nacelles, driving pusher propellers via extension shafts.

Paired engines side by side in each engine nacelle, driving a single propeller via extension shafts .

The VK-30 incorporated a mid-engine design, driving a three-bladed pusher propeller through an extension shaft.

These drove swiveling propellers mounted on massive extension shafts.

The engine is mounted behind the pilot's seat driving the propeller through an extension shaft.

The engine drives the tail-mounted propeller through an extension shaft.

The R-1300 drove a three-bladed propeller by way of an extension shaft (driveshaft).