The St-Just Super-Cyclone is a Canadian amateur-built aircraft produced by St-Just Aviation of Boucherville, Quebec. The aircraft is supplied as plans or as a kit for amateur construction.[1][2][3][4]
The Super-Cyclone is a development of the earlier St-Just Cyclone and is based on the Cessna 180 and Cessna 185 airframe design. The kit manufacturer terms it "a replica" of the Cessna designs. Like the 180/185 it features a strut-braced high-wing, a four-seat enclosed cabin accessed via doors, fixed conventional landing gear, skis or floats and a single engine in tractor configuration.[1][3][4][5]
The aircraft is made from sheet 2024-T3 aluminum, with some parts made from 6061-T6 and 7075-T6. Its 38.1ft (11.6m) extended-span wing employs a NACA 2412airfoil, has an area of 191sqft (17.7m2) and mounts large Fowler flaps. The aircraft can be equipped with engines ranging from 200 to 350hp (149 to 261kW). The standard engine used is the 300hp (224kW) Continental IO-520 four-stroke powerplant. The design includes improvements over the Cessna, including vertically hinged doors and longer span flaps combined with shorter span ailerons, in a similar manner to the Cessna 206.[1][3][5][4][6]
Operational history
In March 2017 there were seven Super-Cyclones on the Transport Canada Civil Aircraft Register and one registered with the US Federal Aviation Administration.[7][8]
Specifications (Super-Cyclone)
St-Just Super-Cyclone on amphibious floats
Data from Bayerl, Kitplanes and St-Just Aviation[1][2][5]
General characteristics
Crew: one
Capacity: four passengers
Length: 38ft (12m)
Wingspan: 38ft 1in (11.6m)
Wing area: 191.0sqft (17.74m2)
Empty weight: 1,800lb (816kg)
Gross weight: 3,500lb (1,588kg)
Fuel capacity: 340 litres (75impgal; 90USgal)
Powerplant: 1 × Continental IO-520 six cylinder, air-cooled, four stroke aircraft engine, 300hp (220kW)
Propellers: 3-bladed constant speed
Performance
Maximum speed: 170mph (280km/h, 150kn)
Cruise speed: 165mph (265km/h, 143kn)
Stall speed: 43mph (70km/h, 38kn)
Range: 1,200mi (1,900km, 1,000nmi)
Rate of climb: 1,600ft/min (8.1m/s)
Wing loading: 18.3lb/sqft (89.5kg/m2)
References
Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 120. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
Downey, Julia: 2005 Kit Aircraft Directory, Kitplanes, Volume 21, Number 12, December 2004, page 53. Belvoir Publications. ISSN 0891-1851
Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 257 BAI Communications, 15 July 1998. ISBN0-9636409-4-1
Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 127. Flying Pages Europe SARL, 2015. ISSN1368-485X
St-Just Aviation (n.d.). "Kits". Retrieved 20 October 2012.
Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 66. Primedia Publications. ISSN 0891-1851
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