T/R push and pull, a bit odd describing a T/R as either a pusher or a puller.
They just counter torque with the thrust being adjusted as required with the thrust direction dependent on which direction the M/R turns.
If you want to see a T/R that pushes, take a look at the Lockheed Cheyenne!
I suppose though if you wanted describe them that way, when the trust produced is directed toward the t/r gearbox it's acting as a "puller" and when the thrust produced is directed away from the T/R gearbox it's acting as a "pusher". Similar is to a prop on a fixed wing, in a conventional installation during take off, it's acting as a "puller" and upon landing when thrust reverse is selected the prop is acting as a "pusher".
Last edited by Gemini Twin; 6th November 2014 at 17:49.