Piasecki PV-2
{{Short description|US helicopter prototype}}
| {{Infobox Aircraft Begin
|name = PV-2 |image = File:Piasecki PV-2 hovering (1943).jpg |caption = PV-2 in flight testing |logo = }}{{Infobox Aircraft Type |type = Helicopter |manufacturer = P-V Engineering Forum |designer = Frank Piasecki |first flight = April 11, 1943 |introduction = |retired = |status = |primary user = |more users = |produced = 1943 |number built = 1 |program cost= |unit cost = |developed from = |variants with their own articles = }} |
The Piasecki PV-2 is a helicopter designed by Frank Piasecki. The PV-2 is best known for being one of the first successful helicopters flown in the United States. The PV-2 first flew on April 11, 1943.[http://nationalaviation.blade6.donet.com/components/content_manager_v02/view_nahf/htdocs/menu_ps.asp?NodeID=-911146831&group_ID=1134656385&Parent_ID=-1 National Aviation Hall of Fame - Frank Piasecki] {{webarchive|url=https://web.archive.org/web/20080522160248/http://nationalaviation.blade6.donet.com/components/content_manager_v02/view_nahf/htdocs/menu_ps.asp?NodeID=-911146831&group_ID=1134656385&Parent_ID=-1 |date=2008-05-22 }} Developed as a technology demonstrator, the PV-2 brought several new features such as the first dynamically balanced rotor blades, a rigid tail rotor with a tension-torsion pitch change system, and a full cyclic and collective rotor pitch control.
The PV-2 is now on display at the National Air and Space Museum's Steven F. Udvar-Hazy Center
Specifications
{{Aircraft specs
|ref=History - single rotor helicopters: PV-2{{cite web|url=http://www.piasecki.com/pv-21.htm |title=History - single rotor helicopters: PV-2| archive-url=https://web.archive.org/web/20080315062936/http://www.piasecki.com/pv-21.htm |archive-date=2008-03-15 |date=2001}}
|prime units?=imp
|crew=1
|capacity=2
|length ft=21
|length in=6
|length note=fuselage
|height ft=
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|max takeoff weight lb=1000
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|eng1 number=1
|eng1 name=Franklin 4AC-199
|eng1 type=4-cylinder horizontally-opposed piston engine
|eng1 hp=90
|rot number=1
|rot dia m=7.6
|rot dia in=
|rot area sqft=488.4
|rot area note=
- Blade section: NACA 0012{{cite web |last1=Lednicer |first1=David |title=The Incomplete Guide to Airfoil Usage |url=https://m-selig.ae.illinois.edu/ads/aircraft.html |website=m-selig.ae.illinois.edu |accessdate=16 April 2019}}
|max speed mph=100
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|range miles=150
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References
{{Reflist}}
External links
{{commons category|Piasecki PV-2}}
- [http://collections.nasm.si.edu/code/emuseum.asp?profile=objects&newstyle=single&quicksearch=A19650241000 P-V Engineering Forum PV-2] at the National Air and Space Museum
- [https://books.google.com/books?id=lyEDAAAAMBAJ&dq=popular+science+1951+PV-2&pg=RA1-PA30 Popular Science August 1951, page 30] rare photo of PV-2 in flight
{{Boeing Helicopters model numbers}}
{{Piasecki/Vertol aircraft}}
Category:1940s United States helicopters
Category:Single-engined piston helicopters