R-R pur­su­ing EVTOL con­cept

Pilot - - ROTORHEADS -

At July’s Farn­bor­ough In­ter­na­tional Air­show Rolls-royce un­veiled a con­cept elec­tric ver­ti­cal take-off and land­ing (EVTOL) ve­hi­cle that it says could be adapted for per­sonal and pub­lic trans­port, lo­gis­tics and mil­i­tary ap­pli­ca­tions. It is based on ex­ist­ing or un­der­de­vel­op­ment tech­nolo­gies and could fly by the early 2020s.

The ini­tial con­cept ve­hi­cle would use gas tur­bine tech­nol­ogy to gen­er­ate elec­tric­ity to power six elec­tric 'propul­sors'. It would also have a bat­tery for en­ergy stor­age. In this hy­brid con­fig­u­ra­tion it could carry four/five pas­sen­gers at speeds up to 250mph over a 500-mile range, R-R pre­dicts, and its bat­tery would au­to­mat­i­cally be recharged by the gas tur­bine. Its wings would ro­tate through 90° for VTOL op­er­a­tion. Once it reached cruise al­ti­tude the wing­mounted pro­pel­lers would be stowed to re­duce drag and cabin noise, with the two rear pro­pel­ler/ro­tors then pro­vid­ing thrust.

R-R EVTOL con­cept could per­form var­i­ous roles

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