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Draft:Silvercraft SH-200

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  • Comment: Hi Sir MemeGod -- this helicopter is very definitely a suitable and welcome subject for an article. However, as it is, the draft is full of claims that aren't verifiable and aren't supported by the sources you cite them to.
    For example: "The prototype, registered I-SILD, first flew on April 12, 1977." is cited to [1], but that page doesn't mention the SH-200 at all, let alone the date it flew or the registration of the prototype.
    Or another example: you say that the helicopter was "designed with the assistance of Tom Tjaarda" and cite it to [2] -- but that page says no such thing.
    Which brings me to the second point: two out of the five sources you're citing do not qualify as reliable. Specifically:
    * planeworlds.com[3] was somebody's self-published blog and can't be used
    and the same goes for
    * aviadejavu.ru[4]
    The archived company website[5] would also be a great source, except, as already noted, it doesn't seem to mention the SH-200 at all...!
    On the upside, if you have access to Jane's for 1978, that's an excellent, gold-standard source, as is Simpson. My advice would be to base your article on those two sources and delete anything in there that you can't find in them. Rlandmann (talk) 14:39, 2 July 2024 (UTC)

Silvercraft SH-200
General information
TypeLight helicopter
National originItaly
ManufacturerSilvercraft
Prototypes1
History
First flightApril 12, 1977
OutcomeAbandoned

The Silvercraft SH-200 was a light helicopter developed by the Italian company Silvercraft in the 1970s and remained at the prototype stage.[1]

History

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Based on the previous SH-4 model, the Silvecraft company, in collaboration with the Fiat Aviation Division and Società Italiana Resine, designed with the assistance of Tom Tjaarda[2], an advanced version of the previous model, which incorporated notable modifications, both which was designated SH-200. The prototype, registered I-SILD, first flew on April 12, 1977.[3]

In the basic model the SH-200 was suitable for carrying out liaison, utility transport, surveillance of highways, oil and power lines, aerophotogrammetry, air ambulance, police, and agricultural use. The tests highlighted that the aircraft had great maneuverability, and a maximum speed of 180 km/h. The prototype was exhibited at the Paris-Le Bourget Air Show that year.[3]

Description

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The Silvercraft SH-200 was a two-seater helicopter of metal and fiberglass composition. The structure is made up of three elements, cabin, central section and tail boom, built in light aluminum alloy and fibreglass. The tail boom built by SIR entirely in fiberglass has a series of circular frames of various diameters, and ends with a T-shaped tail empennage. The firewalls were made of titanium alloy.[3][4]

The engine was a 205 hp Lycoming LHIO-360-C1A 4-cylinder, air-cooled, opposed engine, delivering 205 hp. The rotor was two-bladed, and had a stabilizer bar for crossbar balancing similar to that of the Bell 47. The blades were made of wood with glass fabric and incorporated a steel skirt with tip masses increasing the inertia of the rotor. The landing gear came in the form of simple skids. The rate of climb was 5.9 m/sec, and the cruising speed reached 128 km/h. The fuel capacity was 200 litres.[3]

Operational usage

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Although the SH-200 model, which could not carry cargo on board, attracted interest, it did not go into production, and Silvercraft abandoned helicopter production during 1979.[4]

Specifications (performance estimated)

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Data from Jane's All the World's Aircraft 1978–79[5]

General characteristics

  • Crew: 1
  • Capacity: 1 passenger
  • Length: 10.47 m (34 ft 4 in) (overall, main rotor fore and aft)
  • Empty weight: 495 kg (1,091 lb)
  • Max takeoff weight: 862 kg (1,900 lb)
  • Fuel capacity: 130 L (29 imp gal; 34 US gal)
  • Powerplant: 1 × 1 Lycoming LHIO-360-C1A air-cooled flat-four engine, 153 kW (205 hp)
  • Main rotor diameter: 9.03 m (29 ft 8 in)
  • Main rotor area: 64.04 m2 (689.3 sq ft)

Performance

  • Maximum speed: 161 km/h (100 mph, 87 kn) at sea level
  • Cruise speed: 78 km/h (48 mph, 42 kn) (econ cruise)
  • Range: 354 km (220 mi, 191 nmi) with maximum fuel
  • Service ceiling: 4,265 m (13,993 ft)
  • Rate of climb: 6.0 m/s (1,180 ft/min)

See also

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References

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  1. ^ Simpson, Rod W. (1998). Airlife's helicopters & rotorcraft: a directory of world manufacturers and their aircraft. Shrewsbury: Airlife. ISBN 978-1-85310-968-3.
  2. ^ "Silvercraft SH-200 | Plane Worlds". 2020-10-23. Archived from the original on 2020-10-23. Retrieved 2024-07-01.
  3. ^ a b c d "Silvercraft | tradition". 2020-10-24. Archived from the original on 2020-10-24. Retrieved 2024-07-01.
  4. ^ a b "Silvercraft SH-4 / SH-200". aviadejavu.ru. Retrieved 2024-07-01.
  5. ^ Taylor 1978, p. 115.