Until recently Hamilton has had a virtual monopoly of the propeller business. Lately, however, it and its most formidable rival, famed old Curtiss-Wright Corp., have been seeking another ...

Hartzell Propeller Inc. has received an STC to install a newly designed, three-blade propeller system on Beech 58, 58A and G58 Barons that are factory equipped with TCM IO-520 and IO-550 engines. The ...