Precision Tech Fergy

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Precision Tech Fergy F-II B
Role Ultralight aircraft
National origin United States
Manufacturer Ferguson Aircraft
Precision Tech Aircraft
Designer Bill Ferguson[1]
Introduction 1991
Status No longer in production
Produced 1991-c2002
Number built 40 (2001)
Unit cost
US$10,900 (2001)
Developed from Kolb Mark III

The Precision Tech Fergy F-II B is a two-seats-in-tandem, conventional landing gear, strut-braced, high-wing, pusher configuration ultralight aircraft that was manufactured by Ferguson Aircraft and later Precision Tech Aircraft in kit form for amateur construction. The aircraft is out of production and no longer available.[1][2][3][4][5]

Design and development[edit]

The Fergy was developed from the Kolb Mark III and introduced to the market in 1991. Reviewer Andre Cliche describes it as a "clone", whilst Noel Bertrand et al. claim it was "inspired by the Kolb Twinstar". The aircraft differs from the Kolb design in that it has a revised cockpit pod, with centerline-hinged doors and a square-tipped rudder. The horizontal stabilizer was also raised a few inches to give better ground clearance.[1][2][3][4]

The aircraft is constructed from aluminium tubing, covered with aircraft fabric. The wings fold for storage or trailering. The standard engine supplied with the kit was the 50 hp (37 kW) Rotax 503, with the liquid-cooled 64 hp (48 kW) Rotax 582 optional, although the Fergie can accept engines that range in output from 50 to 80 hp (37 to 60 kW).[1][2][3][4]

The average construction time from the kit was reported by the manufacturer as 350 hours and 40 had been completed by 2001.[1]

Operational history[edit]

The Fergie won the Grand Champion title at Sun 'n Fun in 1991.[1][4][5]

Specifications (Precision Tech Fergy)[edit]

Data from Kitplanes and Cliche[1][2]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 18 ft 8 in (5.7 m)
  • Wingspan: 29 ft 6 in (8.99 m)
  • Wing area: 140 sq ft (13 m2)
  • Empty weight: 400 lb (181 kg)
  • Gross weight: 1,000 lb (454 kg)
  • Fuel capacity: 12.5 US gallons (47 litres)
  • Powerplant: 1 × Rotax 503 twin-cylinder, two-stroke aircraft engine, 50 hp (37 kW)
  • Propellers: 3-bladed ground adjustable


  • Maximum speed: 90 mph (145 km/h; 78 kn)
  • Cruise speed: 75 mph (65 kn; 121 km/h)
  • Stall speed: 28 mph (24 kn; 45 km/h)
  • Range: 220 mi (191 nmi; 354 km)
  • Rate of climb: 1,000 ft/min (5.1 m/s)
  • Wing loading: 7.14 lb/sq ft (34.9 kg/m2)


  • none

See also[edit]

Related development


  1. ^ a b c d e f g Downey, Julia: 2002 Kit Aircraft Directory, Kitplanes, Volume 18, Number 12, December 2001, pages 59 & 84. Kitplanes Acquisition Company. ISSN 0891-1851
  2. ^ a b c d Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page B-78. Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4
  3. ^ a b c Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, pages 22-23. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  4. ^ a b c d Downey, Julia: 2001 Kit Aircraft Directory, Kitplanes, Volume 17, Number 12, December 2000, page 49. Kitplanes Acquisition Company. ISSN 0891-1851
  5. ^ a b Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 158. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1