When I originally posted it I was pretty sure that it was a Sikorsky effort. However before being bought out and becoming "Apache-uber-alles" at Mesa, McDD had done a lot of work on tilt wing. There was nothing other than a paper copy of a briefing that did not have any specifics about who had...
The tail rotor is tilted to allow it to assist with pitch trim when poorly-balanced.
Tilted tail rotors debuted on Sikorsky CH-53 later models and H-60 Blackhawks.
Seems like they actually outed this last year, just without mentioning that it's a tilt-wing configuration.
https://verticalmag.com/news/sikorsky-details-plans-for-new-family-of-hybrid-evtol-aircraft...
https://aviationweek.com/defense-space/aircraft-propulsion/sikorsky-leonardo-study-x2-italian-high-speed-mission
Since Leonardo already a tilt rotor competitor to the Bell V-280'esque FLRAA, it makes sense that they would want to explore other high-speed rotorcraft options to compete with...
With Sikorsky's X2 demonstrator (an attempt to revive its Advancing Blade Concept which didn't do too well before) at least a year behind schedule if still proceeding, X-Wing turning out to be a flop, Tilt-Wing seemingly impractical and now work ending (again) on stopped rotor, looks like Tilt...
Two other Sikorsky projects, one with a stowable, the other with a
tiltable rotor and another picture of the Boeing tilt-wing
(fom Aviation week 18/67, 1/68 and 19/68)
My money is on Sikorsky. The words "tilt-rotor" have stink all over them (justified or not). If they get their S-97 demonstrators rolled out soon enough that will only help them.
One of the reasons why Bell dissolved its joint venture with Agusta to market and develop the BA-609? Is there a current civilian market for tilt rotor aircraft? Or does Bell now consider tilt rotor to be a product only for military customers?
I am very glad to see Sikorsky move back into tilt-wing technology. I also find the idea of hybrid electric (turbine generated electric power) worthy of further exploration.
Looking forward to watching this.
I wonder how the karem design would fair in term of low speed agility vs the compound copter from sikorsky, since one things they keep touting is that their compound copter gives better agility than tilt rotor technology
Sorry, I just don't understand how Defensetalk can claim that "Out of all JMR concepts presented by the competing parties, none look as complete, practical, futuristic, and ready as AVX’s aircraft." Sikorsky and Schweitzer have already built and tested the X2 Technology Demonstrator and Sikorsky...
Tilt Rotor (XV-15) and ABC (XH-59) were evaluated by NASA and the military at about the same time, I guess you could call it a competition in the sense that it decided who would get more money in the future. ABC results were disappointing (partly because of the technology of the time) while...
To start a thread about US VSTOL projects means to open a pandoras box! ;D
Sikorsky S-57 with single blade stowed rotor and NASA concept studies for
F-16/F-17 tailsitters with tilting nose (Aviation Week 1960 and 1975 ).
Aviation Week article on HEX includes an image with a 4-rotor tilt-wing and a conventional helicopter (looking very S-76-ish) with the hybrid drivetrain
https://aviationweek.com/aerospace/emerging-technologies/sikorsky-reveals-hex-tiltwing-demonstrator-configuration
Bell has a far better fall back position in the civil sector than any of the other rotorcraft vendors. Surprisingly Boeing has the most risk as they have no civil rotor craft programs to speak of. Not surprising of Mr. Sikorsky to wave off on tilt rotor not because of militarily but in civil...
Bell at least can point to V-22 as an example of a folding tilt-rotor which can fit into a fairly compact space, and possibly they've learned enough to make the packaging work a little better in a new generation design. Sikorsky-LM can't really cite any similar precedent, they either have to...
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