S55Ts fly over the Arizona desert. These aircraft were modified by Aviation Specialties and produced and marketed by Helitec (Mesa, AZ). The original Pratt and Whitney radial engine was replaced by the Garrett AiResearch TPE-331-3U turbine engine (840 shp derated to 650). From Vertiflite, January/February 1975 (page 15).

Sikorsky S55Ts over the Arizona Desert

407 views
0

S55Ts fly over the Arizona desert. These aircraft were modified by Aviation Specialties and produced and marketed by Helitec (Mesa, AZ). The original Pratt and Whitney radial engine was replaced by the Garrett AiResearch TPE-331-3U turbine engine (840 shp derated to 650). From Vertiflite, January/February 1975 (page 15).

Image source

 

Added to Vertiflite Images and categorized in 2 years ago

 

License: Creative Commons Attribution-ShareAlike

 

In this album