Weatherly 201
{{Short description|American agricultural aircraft}}
| {{Infobox Aircraft Begin
|name=Weatherly 201 |image=Weatherly 201 (5235656178).jpg |caption= }}{{Infobox Aircraft Type |type=Agricultural monoplane |manufacturer=Weatherly Aviation Company |designer=John Weatherly |first flight=1967 |introduced= |retired= |status= |primary user= |more users= |produced= |number built=100+ |unit cost = $58,000 (1979) Field 1979, p.1183. |variants with their own articles= |developed into=Weatherly 620 }} |
The Weatherly Model 201 is a 1960s American agricultural monoplane designed and built by the Weatherly Aviation Company of Hollister, California.
Development
In the early 1960s, John Weatherly formed the Weatherly Aviation Company, to convert 19 Fairchild M-62s into the Weatherly WM-62C agricultural aircraft. With this experience, Weatherly designed his own agricultural monoplane, the Weatherly Model 201.J W R Taylor 1971, p.420. The Weatherly 201 is a cantilever low-wing monoplane, with a fixed tailwheel landing gear, and powered by a nose-mounted 450 hp (336 kW) Pratt & Whitney R-985 radial engine. Its fuselage is constructed of steel tube with aluminium panel covering, while the wings, which are unswept and have 6 degrees of dihedral, are of all metal (aluminium) construction. It has an enclosed cockpit for the pilot, and a glassfibre 270 gallon (1022 litre) chemical hopper in the forward fuselage. It was designed for crop dusting and liquid spraying, and was certified in 1967.
In 1970, the Model 201A was introduced that had a larger chemical hopper and fuel capacity; it was also built as the Model 201B with minor improvements. In 1975, another improved version, the Model 201C, was introduced.
By 1979, more than 100 Model 201s had been built, and it was then succeeded by the improved Weatherly 620.J W R Taylor 1980, p.453.
Variants
;Model 201
:Initial production variant, 2 built.
;Model 201A
:Enlarged fuel capacity and a larger chemical hopper, 5 built.
;Model 201B
:201A with a wider canopy, leading fillet at wing root and other minor improvements, 45 built.
;Model 201C
:Improved variant, 38 built.
Specifications (201A)
{{Aircraft specs
|prime units? = kts
|ref=Jane's All The World's Aircraft 1971-72 J W R Taylor 1971 p.421
|crew=1
|capacity = 260 US Gallons (984 litres) hopper
|length ft=26
|length in=7
|length m=8.10
|span ft=39
|span in=0
|span m=11.89
|height ft=7
|height in=11
|height m=2.41
|wing area sqft=248
|wing area sqm=23.1
|empty weight lb=2,550
|empty weight kg=1,157
|gross weight lb=3,500
|gross weight kg=1,588
|max takeoff weight lb=4,800
|max takeoff weight note=Agricultural Max weight
|max takeoff weight kg=2,177
|eng1 name=Pratt & Whitney R-985
|eng1 type=nine-cylinder single row air cooled radial engine
|eng1 number=1
|eng1 hp=450
|eng1 kw=336
|max speed kts=111
|max speed mph=128
|max speed kmh=206
|max speed note=at sea level
|cruise speed kts=91
|cruise speed mph=105
|cruise speed kmh=169
|never exceed speed kts=125.5
|never exceed speed mph=145
|never exceed speed kmh=233
|stall speed kts=46
|stall speed mph=53
|stall speed kmh=85
|climb rate ftmin=960
|climb rate ms= 4.9
}}
{{aircontent
|see also=
|related=
|similar aircraft=
|sequence=
|lists=
}}
References
=Notes=
{{Reflist}}
=Bibliography=
{{Refbegin}}
- {{cite journal |last=Field |first=Hugh |title=Agricultural Aircraft |journal=Flight International |issue=14 April 1979 |pages= 1179–1183|url=http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%201229.html }}
- {{cite book |title=Jane's All The World's Aircraft 1971-72 |editor-last=Taylor |editor-first= John W R |year= 1971|publisher=Sampson Low |location= London|isbn= 0-354-00094-2 }}
- {{cite book |title=Jane's All The World's Aircraft 1980-81 |editor-last=Taylor |editor-first= John W R |year=1980 |publisher= Jane's|location=London |isbn=0-7106-0705-9 }}
- {{Cite web |url=http://www.airliners.net/aircraft-data/stats.main?id=383|title= Aircraft & Aircraft Carrier Data: The Weatherly 201/620|accessdate=30 December 2008 |publisher= airliners.net}}
- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London }}
- {{cite book |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|publisher= Orbis Publishing|pages=3079}}
{{Refend}}
External links
{{commons category|Weatherly 201}}
- [http://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/7d7cdde75269f3b586256b350053b945/$FILE/A10WE.pdf Type Certificate Data Sheet No. A10WE]
Category:1960s United States agricultural aircraft
Category:Single-engined tractor aircraft