“WLT Sparrow”的意思、由来-开放百科全书

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WLT Sparrow

释义

Design and development
Variants
Specifications (Rotax 912 UL engine)
References

name=Sparrow ML

image=

caption=

}}{{Infobox Aircraft Type

type=Tandem seat ultralight

national origin=Czech Republic

manufacturer=Wolfsberg Aircraft s.r.o.

designer=Alec N Clark

first flight=24 August 2010

introduced=March 2013

retired=

status= in production

primary user=

more users=

produced=

number built=13 by end-2017

program cost=

unit cost= €100,000 without tax (2017)
}}

The Wolfsberg Aircraft Sparrow ML is a twin boom, pusher configuration ultralight aircraft seating two in tandem. Designed and built in the Czech Republic.

Design and development

The Sparrow is largely built from carbon fibre. Its wing has a short span rectangular section between the tail-booms and straight-tapered outer panels with angled tips. There are short ailerons with flaps between them and the twin slender booms. Each boom carries an angled, straight edged fin and rudder; the tailplane, with a one-piece elevator fitted with an offset trim tab, is mounted on top of the fins.

The Sparrow's fuselage has a smooth profile partly defined by multipanel glazing that extends almost from the nose back beyond the wing leading edge. Access to both of the tandem seats is via a wide port-side door. The aircraft is normally flown from the front; the rear seat, placed over the leading edge, can also be provided with controls and instrumentation for an instructor (the Trainer version) or, as on the Clubman, be a passenger position. A ballistic recovery parachute is an option. The Sparrow has a fixed tricycle undercarriage; all three wheels have speed fairings and the main wheels have faired legs under the wings, raked back from the forward ends of the booms.

The Sparrow first flew on 24 August 2010 and production started in 2012.^[1] It achieved Czech certification on 1 March 2013 and by the summer of that year six had been built. French certification was obtained in January 2014^[5] and it appeared on public display for the first time at the AERO Friedrichshafen show in 2014. The display example is a later version powered by a {{convert|100|hp|kW|order=flip|abbr=on|0}} Rotax 912 ULS flat-four, air- and liquid-cooled engine.^[7]

Variants

Sparrow ML Clubman: Controls and instruments for front seat only.

Sparrow ML Trainer: Dual controls and instruments. {{convert|12|kg|lb|abbr=on|0}} heavier than the Clubman.

Specifications (Rotax 912 UL engine)

{{Aircraft specs
|ref=Wolfsberg Aircraft ^[8]
|prime units?=met

|genhide=
|crew=one pilot
|capacity=one passenger
|length m=7.00
|length note=
|span m=9.1
|span note=
|height m=1.76
|height note=
|wing area sqm=11.6
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=272
|empty weight note=
|gross weight kg=
|gross weight note=
|max takeoff weight kg=472.5
|max takeoff weight note=
|fuel capacity={{convert|60|l|Impgal USgal}}
|l
|more general=

|eng1 number=1
|eng1 name=Rotax 912 UL
|eng1 type=air and water-cooled horizontally opposed 4-cylinder in pusher configuration
|eng1 hp=80
|prop blade number=3
|prop name=Woodcomp Klassic 170/3
|prop dia m=1.70
|prop dia note=composite,^[9]{{Dead link|date=October 2017}} with ground adjustable pitch

Take-off distance to clear 15 m (50 ft): {{convert|210|m|ft|abbr=on|0}}
Landing distance from 15 m (50 ft): {{convert|210|m|ft|abbr=on|0}}

}}

References

1. ^Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 88. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}
2. ^¹{{cite journal|date=June 2014 |title=Aero Friedrichshafen|journal= Air Britain World|volume=66 |issue=2 |page=101}}
3. ^¹{{cite web|url=http://www.woodcomp.cz/en/klassic170.php|title=Woodkomp Klassic 170|author=|date=|work=|publisher=|accessdate=14 June 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20100723140741/http://www.woodcomp.cz/en/klassic170.php|archivedate=23 July 2010|df=}}
4. ^¹{{cite web |url=http://www.wolfsbergaircraft.com/sparrow-ml|title=Wolfsberg Aircraft s.r.o.|author= |date= |work= |publisher= |accessdate=3 September 2017}}
5. ^¹{{cite web |url=http://www.wlt.cz/en/multimedia/sparrow-aircraft|title=Sparrow Aircraft|author= |date= |work= |publisher= |accessdate=15 June 2015}}

^[2]^[3]^[4]^[5]
}}

3 : Twin-boom aircraft|Single-engined pusher aircraft|Czech ultralight aircraft 2010–2019

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