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Short SC-7 Skyvan

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The Skyvan had its origins in the Miles Aerovan, the concept of which was taken on by Short in a radically overhauled design. It was designed to carry an 11-ton payload over 200 miles at 160 m.p.h, with an all-up weight of 8,600 lb.

Two prototypes were built at Belfast during 1960 with two 390-bhp Continental GTS IO-520s. It was decided that turboprop power was required, so the prototype and early production (Series 2) examples were ultimately fitted with Astazou II turboprops.

The Short Skyvan (G-ASCN), re-engined with Turbo-meca Astazou turboprops, flew for the first time with its new power plants on October 2, 1963. With Dennis Taylor at the controls the Skyvan was in the air for twenty-five minutes on its first flight.

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These engines were not ideal for hot-and-high conditions or American customers, so the Series 3 was upgraded to the specified Garrett type.

The Skyliner was a dedicated passenger-carrying version.

The military version of the twin-turboprop Skyvan is the Skyvan 3M-200, which is cleared to an increased maximum take-off weight of 6,804kg for military operations. Powered by two 533kW Garrett TPE331 engines, the prototype Skyvan 3M first flew early in 1970. Troop transport, paradropping, assault transport, SAR, and medevac are among the capabilities of the Skyvan. The Skyvans of the Sultan of Oman’s Air Force have Racal ASR 360 airborne surveillance radars for maritime patrol and SAR duties.

The sole example of the Skyvan sold to the Sharjah Amiri Air Wing was delivered in 1986. It was also the last Skyvan built.

In all, 149 Skyvans were built and sold to commercial freight/passenger 'bush' operators and military/paramilitary operators up until 1986.

SC-7
Engines: 2 x Garrett TPE 331-2-201A, 715 shp / 533kW
Props: Hartzell 3-blade, 102-in
Seats: 19
Length: 40 ft
Height: 15 ft
Wingspan: 64.8 ft
Wing area: 373 sq.ft
Wing aspect ratio: 11
Maximum ramp weight: 12,500 lb
Maximum takeoff weight: 12,500 lb
Standard empty weight: 7100 lb
Maximum useful load: 5400 lb
Equipped useful load: 3900 lb
Maximum landing weight: 12,500 lb
Wing loading: 33.5 lbs/sq.ft
Power loading: 8.7 lbs/hp
Fuel cap: 2320/3105 lb
Payload max fuel: 795 lb
Range max fuel/cruise: 770nm/4.5hr
Range max fuel /range: 849nm/5.9hr
Best rate of climb: 1640 fpm
Service ceiling: 22,100 ft
Maximum single-engine rate of climb: 450 fpm @ 92 kt
Single-engine ceiling: 12,500 ft
Maximum speed: 176 kt
Normal cruise @ 10,000ft: 169 kt
Fuel flow @ normal cruise: 482 pph
Endurance at normal cruise: 6 hr
Max range cruise: 145 kt
Vmc: 67 kt
Stalling speed clean: 74 kt
Stalling speed gear/flaps down: 55 kt
Turbulent-air penetration speed: 140 kt
Min field length: 1580 ft
1.3 Vso: 78 kt

Skyvan Series 3
Engines: 2 x Garrett TPE331-201 turbo-prop,
Max take-off weight: 5670 kg / 12500 lb
Empty weight: 3500 kg / 7716 lb
Wingspan: 19.79 m / 65 ft 11 in
Length: 12.22 m / 40 ft 1 in
Height: 4.6 m / 15 ft 1 in
Wing area: 34.65 sq.m / 372.97 sq ft
Cruise speed: 325 km/h / 202 mph
Ceiling: 6860 m / 22500 ft
Range w/max.fuel: 1117 km / 694 miles
Range w/max.payload: 450 km / 280 miles
Crew: 2
Passengers: 19

Skyvan 3M-200
Engine: 2 x Garrett TPE331
Installed pwr: 1060 kW
Span: 19.8 m
Length: 12.2 m
Wing area: 35.1 sq.m
Empty wt: 3768 kg
MTOW: 6800 kg
Payload: 2360 kg
Cruise speed: 308 kph
Initial ROC: 470 m / min
Ceiling: 6700 m
T/O run: 290 m
Ldg run: 210 m
Fuel internal: 1330 (+440) lt
Range/payload: 1075 km with 4000 kg
Capacity: 20 pax

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Short SC.7 Skyvan


 

 


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