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The Sikorsky XV-2, also known by the Sikorsky Aircraft model number S-57, was a planned experimental stoppable rotor aircraft, designated as a convertiplane, developed for a joint research program between the United States Air Force and the United States Army. The program was cancelled before construction of the prototype began.

XV-2
Role Stoppable rotor aircraft
National origin United States
Manufacturer Sikorsky Aircraft
Number built 0

Design and development


The XV-2 was developed as part of a joint U.S. Air Force and U.S. Army program intended to explore technologies to develop an aircraft that could take off and land like a helicopter but fly at faster airspeeds, similar to a conventional airplane. The XV-2's stoppable-rotor design was intended to allow it to hover and fly at low speed like a conventional helicopter. It utilized a single-rotor design; a counterweight provided stability to the rotor system,[1] while a tip-jet arrangement powered the rotor, which retracted into the upper fuselage when stopped, the XV-2 then flying like a conventional aircraft on delta wings.[2] A single jet engine was provided for forward flight.[3]

The XV-2 prototype was assigned the serial number 53-4403, but the project was cancelled before construction could begin.[4]


See also


Aircraft of comparable role, configuration, and era


References


Citations
  1. Boyne 1984, p.178.
  2. Sikorsky 2007, p.84.
  3. Allen 1993, p.4-5.
  4. Pearcy 1993, p.103.
Bibliography



На других языках


[de] Sikorsky S-57

Die Sikorsky S-57 (Militärische Bezeichnung XV-2) war in den 1950er Jahren ein Projekt des US-amerikanischen Herstellers Sikorsky Aircraft zum Bau eines experimentellen Wandelflugzeugs. Zum Bau eines Prototyps kam es jedoch nicht. Die S-57 verwendete das selten eingesetzte Stopp-Rotor-Konzept, um vom Helikopterflugzustand in den Starrflügelmodus zu gelangen.
- [en] Sikorsky XV-2

[fr] Sikorsky XV-2

Le Sikorsky XV-2 (désignation constructeur : Sikorsky modèle S-57) était un avion expérimental convertible à rotor débrayable, conçu aux États-Unis dans le cadre d’un programme de recherche conjoint entre l’US Air Force et l’US Army. Le programme a été annulé avant le début de la construction du prototype.

[it] Sikorsky S-57

Il Sikorsky XV-2, noto anche con il nome di costruzione S-57, era un progetto impostato dall'azienda statunitense Sikorsky Aircraft Corporation per un aeromobile sperimentale con rotore arrestabile in volo e retrattile. Il progetto, definito un convertiplano, venne sviluppato per una ricerca congiunta tra United States Air Force e United States Army per esplorare le tecnologie necessarie alla realizzazione di un aeromobile in grado di decollare e atterrare come un elicottero, ma in grado di volare a velocità più alte, simili a quelle degli aerei convenzionali.[1]



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