Goodwin K Weaver & Oliver Wellet
353 S Audobon Rd
Indianapolis IN.
USA
Circa 1926-7
Aircraft
Weatherly W620 / W620TP
Built in Hollister, California and first built and certified in 1979 (TC A26WE). The 620, the first of which, N9245W, first flew in 1979 and was powered by the 450-hp R-985. The next aircraft, N9259W, was fitted with a PT6A-11AG. One similar aircraft was manufactured in 1960 but Weatherly remained faithful to the radial.
Production waned in the mid-eighties but with the introduction of the model 620A sales picked up again. The 620A wingspan was further extended another five feet to 40 ft 8 in (the wing is now 277 sq.ft) with longer ailerons and a new wingtip design but still retaining the vanes. The 620A also featured a new tail. The empty weight of the 620A is 2,840 lbs and the maximum all-up weight is 5,900 lbs, the hopper capacity being 335 US gallons.
In 1991 the 620A was upgraded to the 620B with major improvements to the cockpit and the addition of two auxiliary fuel tanks providing extra range on ferry flights. Put into production in 1992, this has by far been the most popular model with over one hundred been built and sales not only in the United States but Canada, Central and South America and Australia.
The 620B was then offered with a turbine, this time an Allied Signal TPE331-1, which Weatherly Aviation market as the 620BTG.
W620
Engine: 1 x P&W R-985, 450 hp
TBO: 1000 hrs
Prop: Hartzell, 3 blade, constant speed 95.5 in
Seats: 1
Length: 27.2 ft
Height: 8.1 ft
Wingspan: 41 ft (with wingtip vanes 47’0″)
Wing area: 264 sq.ft
Wing aspect ratio: 6.1
Max take off wt: 5600 lbs
Standard empty wt: 2760 lbs
Max useful load: 2840 lbs
Max landing wt: 4000 lbs
Wing loading: 21.2 lbs/sq.ft
Power loading: 12.4 lbs/hp
Max useable fuel: 390 lbs
Hopper capacity: 335 USG
Max climb rate: 700 fpm
Service ceiling; 15,000 ft
Max speed: 130 kts
Working speed: 78-100 kts
Stall speed flaps down: 57 kts
Turbulent air penetration speed: 122 kts
Fixed tail wheel undercarriage
W620A
W620B
W620TP
Engine: 1 x P&W PT6-11AG, 500 hp turboprop
TBO: 3500 hrs
Prop: Hartzell 3 blade constant speed 96 in
Seats: 1
Length: 30.5 ft
Height: 8.3 ft
Wingspan: 41 ft
Wing area: 264 sq.ft
Wing aspect ratio: 6.1
Max take off wt: 5600 lbs
Standard empty wt: 2700 lbs
Max useful load: 2900 lbs
Max landing wt: 4000 lbs
Wing loading: 21.2 lbs/sq.ft
Power loading: 11.2 lbs/hp
Hopper capacity: 340 USG
Service ceiling; 15,000 ft
Max speed: 153 kts
Working speed: 78-122 kts
Stall speed flaps down: 57 kts
Turbulent air penetration speed: 122 kts
Fixed tail wheel undercarriage
Weatherly W600
In production in 1998 were the 600 and 600 BTG single-seat agricultural aircraft, the latter a turboprop version.
Weatherly W201
When the supply of Fairchild aircraft ran out, John Weatherly started to build the complete aircraft. Two model W201s were built in 1966/67, N86686 and M86687. Powered by a 450-hp R-985 Pratt & Whitney, these aircraft had an improved wing design with the span increased to 39 ft.
The 1970 production aircraft, the W201A, were built between 1968 and 1971. These can be identified by a triangular shaped fin and rudder. More than 100 were built at $22,800.
The W201B model commenced production in 1971 and 45 aircraft were built at $31,500 in 1974.
Another version followed in 1975, the W201C, and this was the Weatherly that introduced the wingtip vanes which diffuse the normal formation of the wingtip vortex. The 201, 201A, and 201C models were under TC A10WE.
201 / 201A / 201C
Engines: P&W R-985, 450 hp
Wingspan: 39’6″
Length: 26’7″
Max TO wt: 4800 lb
Empty wt: 2580 lb
Equipped useful load: 2169 lb
Payload max fuel: 1769 lb
Hopper cap: 270 USG
Wing loading: 19.2 lb/sq.ft
Pwr loading: 10.6 lb/hp
Max speed: 128 mph
Cruise speed: 105 mph
Stall: 58 mph / 60 kt
Working speed: 95 kt
Working endurance: 3 hr
ROC: 980 fpm
Min field length: 1500 ft
Fuel cap: 400 lb
Seats: 1
210B
Engine: P&W R-1340, 450hp
Wing span: 39’0″
Length: 26’7″
Useful load: 2260 lb
Max speed: 130 mph
Cruise speed: 108 mph
Stall: 53 mph
Seats: 1
Weatherly WM62C
Weatherly Aviation’s first aircraft was the WM-62C, N3775G. This was followed by at least 18 aircraft 1961-1965 which were conversions of the PT-19/-23 aircraft. They can be identified by their rounded Fairchild fin and rudders. The first were open cockpit with a roll-over frame but later versions were fitted with an enclosed cockpit.
Single place aircraft, power was from a Continental W-670 or P&W R-985.
Weatherly Aviation Co Inc
John C. Weatherley operated the Weatherley Campbell Aircraft Company as a fixed-base operator, at Dallas, Texas. Acquired plans of the Colt 4-seater from Luscombe Airplane Corporation.
The Weatherly cropduster had its origins in Texas but, when manufacturing began, it was California that John Weatherly turned to for the production of this typical low-wing American cropduster. Weatherly has been building cropdusters since 1960 at Hollister, not far south of San Francisco. At first these aircraft were modified from the ex-military World War Two trainer, the Fairchild M-62 Cornell. When the supply of Fairchild aircraft ran out, John Weatherly started to build the complete aircraft.
Weatherley Aviation Company established at Hollister, California. Built WM 62C agricultural aircraft 1961-1965, a converted Fairchild 62. Developed W.201, a much-improved agricultural aircraft in 1967; followed by 201A in 1970 and 201C in 1975. In production in 1998 were the 600 and 600 BTG single-seat agricultural aircraft, the latter a turboprop version.
In 1990, the company moved production from Hollister to Lincoln, near Sacramento, and in recent times (circa 2000) Hal Weatherly, a nephew of John Weatherly, has taken over running the company.
Watt D.W.2
The Dudley Watt D.W.2 was a 1930s British two-seat light biplane designed by K.N. Pearson for Dudley Watt. The D.W.2 was built at Brooklands and was a wood and fabric biplane with a tailskid landing gear. It had two open cockpits and was powered by a 90 hp (67 kW) ADC Cirrus III piston engine.
The D.W.2 was designed to be offer exceptional handling at low speeds and to be a competitor for the de Havilland Moth family.
Construction was started in 1929 and it was built by K.N. Pearson at Brooklands, first flying on 17 May 1930.
Only one D.W.2 (registered G-AAWK cn.1) was built and this was sold by Dudley Watt in February 1934, it had been dismantled at Selsey by the end of year.
Powerplant: 1 × ADC Cirrus III, 67 hp (90 kW)
Wingspan: 39 ft 8 in (12.09 m)
Wing area: 350 ft2 (32.5 m2)
Length: 25 ft 10 in (7.87 m)
Empty weight: 1050 lb (476 kg)
Gross weight: 1224 lb (555 kg)
Maximum speed: 90 mph (145 km/h)
Crew: 2
Watson 1913
In 1913 Watson’s biplane won a Diploma for a safety device against side-slip, in a competition near Paris.
Engine: Anzani, 60 hp
Watson 1908
Preston Watson’s 1908 aircraft was flown many times at Errol by Watson, his brother James and Archie Dickie.
Engine: Humber, 30 hp
Watson Aeroplane
In 1902 Scotsman Preston Watson is said to have fitted a Santos-Dumont engine to a biplane glider and flown it successfully. The improved version is said to have made many successful flights in 1908.
Engine: 30 hp Humber
All Aero 