Another Walter STC for King Airs under way

 - October 11, 2007, 6:25 AM

Seagull Aviation is working on another STC for the installation of the 750-shp Czech Walter engine and Avia propeller on various King Airs. This STC will apply to the King Air A100, F90 and 99. Dan Sigl, president of Seagull Aviation, said he anticipates receiving the STC in late spring. Installed price is between $500,000 and $525,000 and Seagull said it will help owners sell their old engines. Converted aircraft are quieter and less expensive to operate than King Airs with the original P&WC engines, according to Seagull. The Clintonville, Wis., company already has STCs for the Walter conversion on C90s and E90s.