Weatherly 620

The Weatherly 620 is a 1970s American agricultural monoplane designed and built as an improved variant of the Weatherly 201 by the Weatherly Aircraft Company of McClellan, California.

Design
The Weatherley 620 is an all-metal single-seat low-wing cantilever monoplane with a conventional landing gear with a tailwheel. Examples have been fitted with a Pratt & Whitney R-985 radial engine, and PT6A or TPE331 turboprop engine, driving a three-bladed tractor propeller. In the forward fuselage, the aircraft has a either a 355 US gallon hopper or a 320 US gallon hopper that feeds an agricultural dispersal system. Most pilots that fly the weatherly aircraft, prefer the 320 gallon hopper aircraft.

Variants

 * Model 620
 * 1979 initial production variant.


 * Model 620A
 * 1987 production variant with a Pratt & Whitney R-985 radial engine.


 * Model 620B
 * 1992 production variant with a Pratt & Whitney R-985 radial engine.


 * Model 620TP
 * 1980 turboprop variant with a Pratt & Whitney PT6A-11AG.


 * Model 620B-TG
 * 1997 improved turboprop variant to replace the 620TP with a Honeywell TPE331 turboprop.