Lycoming O-435

The Lycoming O -435 is an air-cooled aircraft engine of the U.S. manufacturer Lycoming. Through various changes of the company and the names AVCO Lycoming Textron Lycoming or be used sporadically.

Developed from the four-cylinder engine O -290 O -435 has a displacement of 435 cubic inches ( 7.13 liters corresponds ). The six-cylinder boxer engine with a carburetor, like all reciprocating aircraft engines a dual ignition. The remarks TVO 435 or 435 VO was used predominantly in the Bell 47 Helicopter. The TVO 435 provides a starting power of 270 hp ( for a limited period of a few minutes) and a continuous output of 220 hp at an engine speed of 3200 min -1. The compression ratio is 7.3:1. The fuel consumption is an hour at about 75 liters /.

The type designation TVO 435 follows a system, after all Lycoming piston engines can be identified in terms of their design features:

• R = radial ( radial engine )
• T = Turbocharged ( turbo )
• V = Vertical ( for vertical installation in helicopters, and the crankshaft is vertical and drives the main rotor gearbox directly )
• O = Opposite ( boxer engine )
• I = Injection ( fuel injection)

• Helicopter engine
• Boxer engine (aviation )
• Lycoming