This is the monster 82″ propeller for 180hp Lycoming O-360 engines. If you want amazing climb performance and especially if your aircraft is on floats then this is the modification for you.

The STC is for paperwork only.  Installation of 8:50 tires with conventional landing gear or installation on floats will usually yield the required clearance.

Applicable models are all Piper PA-22, PA-20, PA-18 and PA-16 aircraft.