with the rear nozzle turned
toward the prop and the exhaust pipes near the spinner. Why is this so?

The engines they use for the conversion are typically the Rolls Royce whatever
(formerly the Allison 250). These are reverse flow, free spinning turbines.
Basically, the air enters the front and is routed thru the engine from back to
front.
The PT-6 is the same way (what I am currently flying). The Garretts (Or
whatever they are called today) are direct drive turbines and the airflow is
front to back.




-John
*You are nothing until you have flown a Douglas, Lockheed, Grumman or North
American*