Boeing patents design for simpler, better version of V-22

My biggest problem with Time’s crap cover story on the V-22 is that it gives reasoned criticism of the Bell-Boeing tiltrotor a bad name.

To best view the V-22′s shortcomings as a hybrid helicopter-airplane, it helps to look at an aircraft design that may do vertical and short takeoff and landing manuevers better.

Thankfully, Boeing received a patent on September 11 that proposes such a design. Behold:


This is a single-engine vertical takeoff and landing aircraft that uses split-torque face gears to drive three lift fans for vertical lift and two pusher propellers for forward thrust. Gone is the cumbersone complexity of the V-22′s tilting wings and two engines.

The key new technology proposed in the patent is the split-torque face gear, which comes from Boeing’s recent upgrades of the AH-64 Apache helicopter. As my colleague The Woracle explained to me, this device allows the engine to drive the fan and the pusher-prop simultaneously. The trick will be to figure out how to manage the power loads going to either the fan or the prop. Here’s how it looks:


And this is a drawing of the complete system:



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8 Responses to Boeing patents design for simpler, better version of V-22

  1. HerkEng 4 October, 2007 at 9:25 pm #

    Wow, that is ugly.

    I don’t care how it looks…can it auto-rotate?

  2. Chris 5 October, 2007 at 5:39 pm #

    Ha. Nice try.

    Look up Sikorsky X2 technology. Theres a reasonsable answer to high(er) speed VTOL craft.

    All I think of when I look at that layout is – parasitic driveline loss.

  3. paul 5 October, 2007 at 6:22 pm #

    It will be very interesting to follow the development of this concept with strong potential military AND commercial potential. No doubt the $millions will come from Boeing and not from NASA and other US Quangos. Where did Boeing get the plastic weaving technology for the 787 fuselage & why,therefore, can they so confidently sell so many to a normally conservative, from the passenger safety perspective, aircraft buying industry. Could there be a ‘stealth’ connection? Surely not.

  4. RTLM 6 October, 2007 at 7:46 am #

    Looks like a high priced, high maintenance UAV to me. They might have designed the V-22 this way if didn’t have payload and pilots to accommodate.

    And absent any stealth.

  5. Chris 8 October, 2007 at 7:00 pm #

    Sorry Big D, my comment wasnt targeted towards yours (apparent delay between comment posting and approval) but towards boeing’s concept.

  6. John Price 12 February, 2008 at 10:00 am #

    Big D’s suggestion of hollow rotor and high bypass turboprops reminds me of the Fairey Rotodyne of the 1950s. It needed tip-jets for best performane, which were judged too noisy, but with 2 RR Tynes and a fairly capacious fuselage it was a concept which could have been further developed if the “city centre-to-city-centre” idea hadn’t been felt to be a step too far for civil aviation at the time …
    What goes around comes around?

  7. Cordless Radar Detector 23 July, 2010 at 4:53 pm #

    Three things drive a man outdoors smoke a leaking roof and a scolding wife.

  8. Lael Bressette 24 July, 2010 at 6:37 pm #

    Technology is getting more amazing as time passes. I cant wait to see whats being created 10 years down the road. Electronics have been devolping at such a rapid rate. Noone can expect whats coming next.

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