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.[1]
| Weatherly 620 | |
|---|---|
_at_Bankstown_Airport_(1).jpg) | |
| A Weatherly 620B in 1998 | |
| Role | Agricultural aircraft |
| National origin | United States |
| Manufacturer | Weatherly Aircraft Company |
| First flight | 1979 |
| Number built | 155 |
| Developed from | Weatherly 201 |
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 355 US gallon (1344 litre) hopper that feeds an agricultural dispersal system.[1]
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.
Specifications (620BTG)
_at_Bankstown_Airport.jpg)
Side view of Weatherly 620B
Data from Jane's All The World's Aircraft 2004-05 [1]
General characteristics
- Crew: 1
- Payload: 355 US Gallons (1344litres) hopper
- Length: 29 ft 8 in (9.04 m)
- Wingspan: 46 ft 8 in (14.22 m)
- Height: 9 ft 6 in (2.90 m)
- Wing area: 277 ft² (23.1 m²)
- Empty weight: 3030 lb (1374 kg)
- Max. takeoff weight: 6000 lb (2721 kg)
- Powerplant: 1 × Honeywell TPE331 turboprop, 500 hp (373 kW)
Performance
- Cruise speed: 122 knots (140 mph, 226 km/h)
- Stall speed: 62 knots (72 mph, 115 km/h)
- Never exceed speed: 153 knots (176 mph, 283 km/h)
- Service ceiling: 15000 ft (4572 m)
- Rate of climb: 1400 ft/min (m/s)
References
- Notes
- Jackson 2004, p. 801
- Bibliography
- Jackson, Paul, ed. (2004). Jane's All the World's Aircraft 2004-2005. Coulsdon, Surrey, United Kingdom: Jane's Information Group. ISBN 0-7106-2614-2.
External links
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