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- Platt-LePage_XR-1 abstract "The Platt-LePage XR-1, also known by the company designation PL-3, was an early American twin-rotor helicopter, built by the Platt-LePage Aircraft Company of Eddystone, Pennsylvania. The winner of a United States Army Air Corps design competition held in early 1940, the XR-1 was the first helicopter tested by the USAAF, flying in 1941. The flight testing of the XR-1 proved troublesome, and although continued testing showed that the design had promise, other, improved helicopters were becoming available before the XR-1 was ready for service. As a result, the development of the aircraft was terminated in 1945.".
- Platt-LePage_XR-1 manufacturer Platt-LePage_Aircraft_Company.
- Platt-LePage_XR-1 numberBuilt "2".
- Platt-LePage_XR-1 programCost "500000.0".
- Platt-LePage_XR-1 retired "1946-06-21".
- Platt-LePage_XR-1 thumbnail Platt-LePage_XR-1_top_view.jpg?width=300.
- Platt-LePage_XR-1 wikiPageExternalLink v=onepage&q=motor%20gun%20boat&f=true.
- Platt-LePage_XR-1 wikiPageExternalLink v=onepage&q&f=false.
- Platt-LePage_XR-1 wikiPageExternalLink books?id=n4H3B7zGwZwC&pg=PA42.
- Platt-LePage_XR-1 wikiPageExternalLink v=onepage&q&f=false.
- Platt-LePage_XR-1 wikiPageExternalLink artifact.cfm?id=A19600305000.
- Platt-LePage_XR-1 wikiPageID "14530186".
- Platt-LePage_XR-1 wikiPageRevisionID "559551666".
- Platt-LePage_XR-1 crew "Two".
- Platt-LePage_XR-1 m "19.9".
- Platt-LePage_XR-1 eng1Hp "450".
- Platt-LePage_XR-1 eng1Name "Pratt & Whitney R-985-AN-1".
- Platt-LePage_XR-1 eng1Number "1".
- Platt-LePage_XR-1 eng1Type Radial_engine.
- Platt-LePage_XR-1 firstFlight "1941-05-12".
- Platt-LePage_XR-1 grossWeightLb "4730".
- Platt-LePage_XR-1 hasPhotoCollection Platt-LePage_XR-1.
- Platt-LePage_XR-1 heightFt "9".
- Platt-LePage_XR-1 heightIn "0".
- Platt-LePage_XR-1 lengthFt "29".
- Platt-LePage_XR-1 lengthIn "4".
- Platt-LePage_XR-1 lists "* List of military aircraft of the United States".
- Platt-LePage_XR-1 manufacturer Platt-LePage_Aircraft_Company.
- Platt-LePage_XR-1 maxSpeedKmh "177".
- Platt-LePage_XR-1 numberBuilt "2".
- Platt-LePage_XR-1 mass "10.8".
- Platt-LePage_XR-1 primaryUser United_States_Army_Air_Forces.
- Platt-LePage_XR-1 primeUnits%3F_ "imp".
- Platt-LePage_XR-1 programCost "$500,000 USD".
- Platt-LePage_XR-1 ref "Connor and Lee 2000; Lambermont 1958".
- Platt-LePage_XR-1 retired "1946-06-21".
- Platt-LePage_XR-1 rotDiaFt "31".
- Platt-LePage_XR-1 rotDiaIn "6".
- Platt-LePage_XR-1 rotNumber "2".
- Platt-LePage_XR-1 similarAircraft "* Focke-Achgelis Fa 223 * Focke-Wulf Fw 61 * McDonnell XHJD Whirlaway".
- Platt-LePage_XR-1 spanFt "65".
- Platt-LePage_XR-1 spanIn "0".
- Platt-LePage_XR-1 type "Experimental helicopter".
- Platt-LePage_XR-1 subject Category:Cancelled_military_aircraft_projects_of_the_United_States.
- Platt-LePage_XR-1 subject Category:Military_helicopters.
- Platt-LePage_XR-1 subject Category:Platt-LePage_aircraft.
- Platt-LePage_XR-1 subject Category:Rigid_rotor_helicopters.
- Platt-LePage_XR-1 subject Category:Single-engined_piston_helicopters.
- Platt-LePage_XR-1 subject Category:Transverse_rotor_helicopters.
- Platt-LePage_XR-1 subject Category:United_States_experimental_aircraft_1940–1949.
- Platt-LePage_XR-1 subject Category:United_States_helicopters_1940–1949.
- Platt-LePage_XR-1 type Aircraft.
- Platt-LePage_XR-1 type MeanOfTransportation.
- Platt-LePage_XR-1 type Product.
- Platt-LePage_XR-1 type DesignedArtifact.
- Platt-LePage_XR-1 comment "The Platt-LePage XR-1, also known by the company designation PL-3, was an early American twin-rotor helicopter, built by the Platt-LePage Aircraft Company of Eddystone, Pennsylvania. The winner of a United States Army Air Corps design competition held in early 1940, the XR-1 was the first helicopter tested by the USAAF, flying in 1941.".
- Platt-LePage_XR-1 label "Platt-LePage XR-1".
- Platt-LePage_XR-1 label "Platt-LePage XR-1".
- Platt-LePage_XR-1 label "R-1 (航空機)".
- Platt-LePage_XR-1 sameAs Platt-LePage_XR-1.
- Platt-LePage_XR-1 sameAs Platt-LePage_XR-1.
- Platt-LePage_XR-1 sameAs R-1_(航空機).
- Platt-LePage_XR-1 sameAs m.03d6jm7.
- Platt-LePage_XR-1 sameAs Q619012.
- Platt-LePage_XR-1 sameAs Q619012.
- Platt-LePage_XR-1 wasDerivedFrom Platt-LePage_XR-1?oldid=559551666.
- Platt-LePage_XR-1 depiction Platt-LePage_XR-1_top_view.jpg.
- Platt-LePage_XR-1 isPrimaryTopicOf Platt-LePage_XR-1.
