Spec. on Piper Navajo
 

Hi I have a few Q's. on the Piper Navajo

1) Is there any time limit on the airframe.
2) Is there any thing I have to look extra good after when buying this aircraft?
3) Can any one give me some performance data's on the different Navajos (PA31-310, PA31-350, Panhter version) Have lots of different infon's but with like some from people actual working with the aircrafts.

Regards
Henrik