Dynamic Sport Viper
{|{{Infobox Aircraft Begin
| name= Viper
| image=
| caption=
}}{{Infobox Aircraft Type
| type=[[Paraglider]]
| national origin=[[Poland]]
| manufacturer=[[Dynamic Sport]]
| designer=Wojtek Pierzyński
| first flight=
| introduced=
| retired=
| status=Production completed
| primary user=
| more users= <!--Limited to three in total; separate using <br /> -->
| produced= mid-2000s
| number built=
| program cost= <!--Total program cost-->
| unit cost=[[Euro|€]]998 (Viper L, 2004)
| developed from=
| variants with their own articles=
}}
|}
The '''Dynamic Sport Viper''' is a [[Poland|Polish]] single-place, [[paraglider]] that was designed by Wojtek Pierzyński and produced by [[Dynamic Sport]] of [[Kielce]]. It is now out of production.<ref name="WDLA04">Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 15. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X</ref>
==Design and development==
The Viper was designed as a competition glider. The models are each named for their relative size.<ref name="WDLA04"/>
==Operational history==
Reviewer Noel Bertrand described the Viper in a 2003 review as priced very competitively.<ref name="WDLA04"/>
==Variants==
;Viper M
:Medium-sized model for mid-weight pilots. Its {{convert|12.25|m|ft|1|abbr=on}} span wing has a wing area of {{convert|26.5|m2|sqft|abbr=on}}, 70 cells and the [[Aspect ratio (aeronautics)|aspect ratio]] is 5.56:1. The pilot weight range is {{convert|65|to|85|kg|lb|0|abbr=on}}.<ref name="WDLA04"/>
;Viper L
:Large-sized model for heavier pilots. Its {{convert|12.8|m|ft|1|abbr=on}} span wing has a wing area of {{convert|28.6|m2|sqft|abbr=on}}, 73 cells and the aspect ratio is 5.65:1. The pilot weight range is {{convert|80|to|100|kg|lb|0|abbr=on}}.<ref name="WDLA04"/>
;Viper XL
:Extra large-sized model for much heavier pilots. Its {{convert|13.3|m|ft|1|abbr=on}} span wing has a wing area of {{convert|30.5|m2|sqft|abbr=on}}, 76 cells and the aspect ratio is 5.71:1. The pilot weight range is {{convert|95|to|115|kg|lb|0|abbr=on}}.<ref name="WDLA04"/>
<!-- ==Aircraft on display== -->
==Specifications (Viper L) ==
{{Aircraft specs
|ref=Bertrand<ref name="WDLA04" />
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|crew=one
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|span m=12.8
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|wing area sqm=28.6
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|aspect ratio=5.65:1
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|sink rate ms=0.9
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==References==
{{reflist}}
<!-- ==External links== -->
{{Dynamic Sport aircraft}}
[[Category:Dynamic Sport aircraft|Viper]]
[[Category:Paragliders]]