View source for DAR 21 Vector II

{{Short description|Bulgarian ultralight aircraft}}
{{Use dmy dates|date=March 2022}}
{{Use British English|date=March 2022}}
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
{|{{Infobox Aircraft Begin
| name=DAR 21 Vector II
| image=
| caption=
}}{{Infobox Aircraft Type
| type=[[Ultralight aircraft]]
| national origin=[[Bulgaria]]
| manufacturer=[[Aeroplanes DAR]]
| designer=
| first flight=1 August 2000
| introduced=
| retired=
| status=Production completed (2014)
| primary user=
| more users= <!--Limited to three in total; separate using <br /> -->
| produced= 2001-2014
| number built=
| developed from=
| variants with their own articles=
}}
|}
The '''DAR 21 Vector II''' is a [[Bulgaria]]n [[ultralight aircraft]], designed and produced by [[Aeroplanes DAR]], first flying on 1 August 2000.<ref name="Hist">{{cite web|url = http://aeroplanesdar.com/company-history/|title = Company History|access-date = 21 September 2015|author = [[Aeroplanes DAR]]|year = 2014|archive-date = 10 August 2015|archive-url = https://web.archive.org/web/20150810163541/http://aeroplanesdar.com/company-history/}}</ref>
When it was available the aircraft was supplied as a kit for [[Homebuilt aircraft|amateur construction]] or as a complete ready-to-fly-aircraft.<ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 20. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref>
The aircraft was introduced in 2001 and production apparently ended in 2014, as by that year the aircraft was no longer advertised for sale by the company.<ref name="Hist"/><ref>{{cite web|url= https://web.archive.org/web/*/http://aeroplanesdar.com/dar-21.php |title=Aeroplanes DAR |website=Internet Archive Wayback Machine |access-date=11 September 2015}}{{cbignore}}</ref><ref>{{cite web|url=http://aeroplanesdar.com/dar-21.php |title=DAR 21 |access-date=21 September 2015 |website=[[Aeroplanes DAR]] |year=2014 |archive-url=https://web.archive.org/web/20131117185536/http://www.aeroplanesdar.com/dar-21.php |archive-date=November 17, 2013 }}</ref>
==Design and development==
The aircraft was designed to comply with the [[Fédération Aéronautique Internationale]] microlight rules. It features a [[strut-braced]] [[high wing]], a two-seats-in-[[tandem]] enclosed cockpit, [[conventional landing gear]] and a single engine in [[tractor configuration]].<ref name="WDLA11" />
The Vector II has riveted stressed skin made with 1050 and 3105 [[aluminum]] sheet for corrosion resistance. The [[fuselage]] has a square cross-section. Its {{convert|9.2|m|ft|1|abbr=on}} span wing employs [[Flap (aircraft)|flaps]] that can be set to 15° for takeoff and 30° for landing. The standard engine available is the {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] twin-cylinder, liquid-cooled, [[two-stroke]] powerplant, with the [[four-stroke]] {{convert|80|hp|kW|0|abbr=on}} [[Rotax 912]] optional. Solo flight is accomplished from the front seat.<ref name="WDLA11" /><ref name="DAR">{{cite web|url = http://www.aeroplanesdar.com/dar-21.php|title = DAR-21|access-date = 22 April 2012|last = [[Aeroplanes DAR]]|date = 2012|archive-url = https://web.archive.org/web/20131117185536/http://www.aeroplanesdar.com/dar-21.php |archive-date = 17 November 2013}}</ref>
<!-- ==Operational history== -->
==Variants==
;DAR 21
:Standard version with [[Bungee cord|bungee]] main landing gear suspension.<ref name="WDLA11" />
;DAR 21S
:Upgraded version with aluminum sprung main landing gear suspension for increased ground clearance.<ref name="WDLA11" />
<!-- ==Aircraft on display== -->
==Specifications (DAR 21) ==
{{Aircraft specs
|ref=Bayerl and DAR<ref name="WDLA11" /><ref name="DAR" />
|prime units?=met<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show -->
<!--
General characteristics
-->
|genhide=
|crew=one
|capacity=one passenger
|length m=6.35
|length ft=
|length in=
|length note=
|span m=9.42
|span ft=
|span in=
|span note=
|height m=1.80
|height ft=
|height in=
|height note=
|wing area sqm=12.42
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=250
|empty weight lb=
|empty weight note=
|gross weight kg=450
|gross weight lb=
|gross weight note=
|fuel capacity={{convert|32|L}}
|more general=
<!--
Powerplant
-->
|eng1 number=1
|eng1 name=[[Rotax 582]]
|eng1 type=twin cylinder, liquid-cooled, [[two stroke]]
|eng1 kw=48<!-- prop engines -->
|eng1 hp=<!-- prop engines -->
|prop blade number=<!-- propeller aircraft -->
|prop name=
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop note=
<!--
Performance
-->
|perfhide=
|max speed kmh=200
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=175
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=58
|stall speed mph=
|stall speed kts=
|stall speed note=at gross weight, flaps down
|never exceed speed kmh=205
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=
|range nmi=
|range note=
|endurance=<!-- if range unknown -->
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=+4/-2
|roll rate=<!-- aerobatic -->
|glide ratio=<!-- sailplanes -->
|climb rate ms=5
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=36.2
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}
<!-- ==See also== -->
{{aircontent
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|see also=
|related=<!-- related developments -->
|similar aircraft=<!-- similar or comparable aircraft -->
|lists=<!-- related lists -->
}}
==References==
{{reflist}}
==External links==
*[https://web.archive.org/web/*/http://aeroplanesdar.com/dar-21.php DAR 21 aircraft web page archives] on [[Archive.org]]
*[https://www.youtube.com/watch?v=Psf6YJwZsxg Official video]
{{DAR aircraft}}
[[Category:2000s Bulgarian ultralight aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Homebuilt aircraft]]
[[Category:High-wing aircraft]]
[[Category:DAR aircraft]]