Tilt-Rotor Aircraft

[Volkodav]

Actually a four engine tilt rotor with either twin engine nacelles or even one engine in each nacelle an another in clutched into the cross linking drive shafts with contra props on each nacelle could be used for a 1/72 to 1/72 Spartan tilt rotor.

[Weaver]

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You could build something like those using the old ESCI Tandem-Helix kit:

[GTX_Admin]

Great suggestion.

[elmayerle]

Good idea, save that underwing stores firing forward are very likely to hit the prop-rotors and that's not a good thing.  The fuselage-mounted or sponson-mounted approaches look best.  *wicked cackle*  You don't want to see some of the stranger V-22 proposals (scarily enough, at least one looks to be proceeding to test and evaluation).

[ed s]

You could end up with something like this.  I did this a couple years ago.  It's the DML KA50 made into a tilt rotor.





Ed

[elmayerle]

Now that's a beautiful whif.  I'm not certain how efficient those rotors would be, they look on the short side to me (to be honest, I understand that the V-22 sacrificed some rotor efficiency to get a quickly stowable design).

[Rickshaw]

Now that's a beautiful whif.  I'm not certain how efficient those rotors would be, they look on the short side to me (to be honest, I understand that the V-22 sacrificed some rotor efficiency to get a quickly stowable design).

Like this one?  RAMC V-22:

[Gingie]

Nice one Ed. Got any WIP pics?

[jschmus]

This just in, Bell unveils its V-280 Valor mockup at Ft. Benning, GA.
http://bellv280.com/

Pics from the Maneuver Warfighter Conference and Tactical Expo:
https://www.facebook.com/media/set/?set=a.691987927495853.1073741843.137576202937031&type=3

[Gingie]

Oh man... do I chop up a 1/35 UH 60 now..

Wonder if it will compete against the Osprey for the FWSAR contract. Interesting pivot point on the engines and the jet augmentation (?) adjacent to the props.

[jcf]

Wonder if it will compete against the Osprey for the FWSAR contract.

So, a Bell product competing against a Bell product? 

Interesting pivot point on the engines and the jet augmentation (?) adjacent to the props.

The engines don't pivot, the rotors do. The engines are mounted on the wingtips.
It's an alternative layout that's been around for decades. Bell proposed it on their
CTR-7500 large civil tilt-rotor. See page 3 of this thread for more.

Boeing used it on their proposal for the XV-15 demonstrator.

Yes, that's an MU-2 fuselage. 

[Rafael]

I love all things VTOL.
Here's some food for thought

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QTR:

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[Rafael]

I've become concerned with an issue: Tilt-rotor footprint.
With wing and proprotor folding for stowage everything looks well and good; but, what happens when the time comes to spotting planes on deck with fuel burning and rotors turning?
What happens when engaged in operations among urban canyons, say, in support of MOUT?

I've attached the only three comparison images I could find of size comparisons. Note the footprint comparison against the Frog, and the one against the Chinook (specially leghtwise)

Saludos,

Rafa

[Daryl J.]

Two words regarding the footprint: Achilles Heel

[Rafael]

Figured as much, Daryl. Everything falls victim of tradeoffs

[GTX_Admin]

That's dirty...




USMC MV-22 operating in the Northern Territory.  Good thing it is the dry season though...

[Rafael]

Ospreys look sexy in the mud.

A few concept iterations of CSA - Common Support Aircraft Maritime  and  Lockheed&Grumman Multiple Purpose Subsonic Naval Aircraft MPSNA in propfan and (I think) UDF.

(Sourced from the respective topic at secretprojects.co.uk)

[elmayerle]

V-22 is being evaluated for the COD role to replace C-2A's.  It meets the main criteria, it can carry a crated JSF engine.  More to the point, once it delivers to the carrier, it can then make further deliveries to the rest of the task force without transferring material to a waiting MH-60R or MH-60S.  It's also been trialed, dry, as a refueling bird and has been successful in safely deploying the drogue to where a F/A-18 could mate with it.  I still want to do a USFS one with a mini-MAFS and a hover tank refill capability like the SIkorsky/Aero Union Firehawk has.

[Daryl J.]

That's cool.

[taiidantomcat]

surprised it hasn't been posted yet 

[taiidantomcat]

[Jeffry Fontaine]

Hasegawa 1:72nd scale MV-22B Osprey (kit number 01571)

Click on html or thumbnail image to see the kit review at CyberModeler.

[jcf]

... and Chris Banyai-Riepl's inbox over on Internet Modeler:
http://www.internetmodeler.com/scalemodels/flaviation/Hasegawa-1-72-MV-22B-Osprey.php

[Rickshaw]

Interesting shot of the Israeli V-22.  I don't think I've seen one caught in the act of folding away it's undercarriage before...

[elmayerle]

Someone did a nice whif there.  they don't have any, yet.