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词条 Atlas XH-1 Alpha
释义

  1. Development

  2. Specifications (XH-1)

  3. See also

  4. References

{{Use dmy dates|date=February 2013}}
name = XH-1 Alphaimage = File:XH-1 Alpha.jpgcaption = Alpha XH-1

}}{{Infobox aircraft type

type = Prototypemanufacturer = Atlas Aviation
Denel
designer = first flight = 3 February 1985introduced = retired = status = Retiredprimary user = more users = produced = number built = 1unit cost =developed from = Aérospatiale Alouette III variants with their own articles =
}}

The Atlas XH-1 Alpha is a prototype attack helicopter built by Atlas Aviation (now Denel) of South Africa, which used it as a concept demonstrator for the then-planned Rooivalk project.

Development

It was developed from an Aérospatiale Alouette III airframe, retaining that helicopter's engine and dynamic components, but replacing the original cockpit with a stepped tandem one, adding a 20 mm cannon under the chin and converting the undercarriage to tail-dragger configuration.

The XH-1 first flew on 3 February 1985,[1] and soon embarked on a rigorous flight test program to examine the feasibility of a dedicated attack helicopter in southern African conditions. The results were ultimately good enough to convince Atlas and the South African Air Force to go ahead with the development of a dedicated attack helicopter – the Denel Rooivalk.

The XH-1 and Rooivalk are completely different aircraft and share no components. The Rooivalk was developed from the later XH-2 prototype.

The sole XH-1 was retired sometime in the late 1980s and was handed over to the South African Air Force Museum, where it remains to this day.{{cn|date=July 2018}}

Specifications (XH-1)

{{Aircraft specs
|ref=
|prime units?=met


|crew=2
|length m=10.56
|height m=2.73
|empty weight kg=1,400
|max takeoff weight kg=2,200


|eng1 number=1
|eng1 name=Turbomeca Artouste IIIB
|eng1 type=turboshaft
|eng1 kw=410
|rot number=1
|rot dia m=11.02
|rot area sqm=95.4


|max speed kmh=200
|range km=550


|guns= 1 × Vektor GA-1 Rattler 20mm cannon in a chin turret with 1,000 rounds
}}

See also

{{aircontent
|related=
  • Aérospatiale Alouette III
  • Denel Rooivalk

|similar aircraft=
  • Bell 207 Sioux Scout
  • IAR 316

|lists=
  • List of attack aircraft
  • List of rotorcraft

|see also=
}}

References

{{Commons category|Alpha (SAAF)}}
1. ^Air International June 1986, p.599.
  • "An Alpha From Atlas". Air International, June 1986, Vol.30 No. 6. p. 299. ISSN 0306-5634.
{{Atlas/Denel aircraft}}

8 : Military helicopters|South African attack aircraft 1980–1989|South African helicopters 1980–1989|Atlas Aircraft Corporation aircraft|South African experimental aircraft 1980–1989|Cold War military equipment of South Africa|Single-turbine helicopters|Aircraft first flown in 1985

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