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词条 Birdman Atlas
释义

  1. Development

  2. Variants

  3. Specifications (Atlas 215 3-A)

  4. See also

  5. References

name=Atlas image= caption=

}}{{Infobox Aircraft Type

 type=Ultralight aircraft national origin=Canada manufacturer=Birdman Enterprises designer=Bob Lovejoy first flight= introduced=1980[1] retired= status=Production completed primary user= number built=more than 500[2] developed from= Eipper Quicksilver variants with their own articles=
}}

The Birdman Atlas is a single-seat, high wing, single engine in pusher configuration, ultralight aircraft that was based upon the Eipper Quicksilver design.[1][3]

Development

The Atlas was introduced to the marketplace in 1980. Production was curtailed in about 1983 as the company concentrated on producing the newer Birdman WT-11 Chinook instead.[1]

The Atlas was a development of the Quicksilver and as such incorporated many of the Quicksilver's features, such as a 6061-T6 aluminum-framed, single-surface Dacron-covered, wire-braced high wing, with the ground wires suspended from a kingpost. The fuselage structure was also built from 6061-T6 aluminum tube.[3]

The early Atlas XC variants used weight shift for control supplemented with a rudder, whereas the later 3-A versions (for 3-Axis) utilized a conventional control system with elevator and rudder, and spoilers for roll control.[3]

Variants

Atlas 215 XC

Foot-launchable single place ultralight powered by a {{convert|20|hp|kW|0|abbr=on}} 215 cc single cylinder Cuyuna 215 engine. Control system is weight shift, plus rudder. Landing gear includes a shimmy-damped, shock-absorbing tailwheel unit. Available in kit form.[3]

Atlas 250 XC

Foot-launchable single place ultralight powered by a {{convert|25|hp|kW|0|abbr=on}} 250 cc twin cylinder Rotax engine. Control system is weight shift, plus rudder. Landing gear includes a shimmy-damped, shock-absorbing tailwheel unit. Available in kit form.[3]

Atlas 215 3-A

Non-foot-launchable single place ultralight powered by a {{convert|20|hp|kW|0|abbr=on}} 215 cc single cylinder Cuyuna 215 engine. Conventional three-axis control system utilizing spoilers for roll-control. Seat is adjustable fore and aft for balance. Due to company concerns about rigging requirements it was only supplied as a completed aircraft.[3]

Atlas 250 3-A

Non-foot-launchable single place ultralight powered by a {{convert|25|hp|kW|0|abbr=on}} 250 cc twin cylinder Rotax engine. Conventional three-axis control system utilizing spoilers for roll-control. Due to company concerns about rigging requirements it was only supplied as a completed aircraft.[3]

Specifications (Atlas 215 3-A)

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|eng1 number=1
|eng1 name=Cuyuna 215
|eng1 type=two stroke snowmobile engine
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|prop blade number=2
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|perfhide=
|max speed kmh=
|max speed mph=46
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|cruise speed mph=41
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|stall speed mph=20
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|range miles=85
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|endurance=3 hours 6 minutes
|ceiling m=
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|climb rate ftmin=350
|climb rate note=at 2400 feet (732 m) with 150 lb (68 kg) pilot
|sink rate ms=
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|wing loading kg/m2
|wing loading lb/sqft=3.1
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See also

{{Portal|Aviation}}{{aircontent
|see also=
|related=
|similar aircraft=
  • Eipper Quicksilver

|lists=
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References

{{commons category|Birdman Enterprises}}
1. ^1 2 Jones, Terry: Birdman WT-11 Chinook - A Cabin-Class "Ultra" Lightplane. Birdman Enterprises, 1984.
2. ^Taylor, John WR, Jane's All The World's Aircraft 1987-88 page 544, Janes Publishing Limited.
3. ^1 2 3 4 5 6 7 Taylor, John WR: Janes All the Worlds Aircraft 1982-83 page 625-626, Janes Publishing Company, 1982. {{ISBN|0-7106-0748-2}}
{{Birdman Enterprises}}

1 : Canadian ultralight aircraft 1980–1989
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