![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
The problems which have been experienced by the V-22 Osprey are a
reminder of one very successful alternative: the Fairey Rotodyne. See: http://www.groenbros.com/tech/FaireyRotodyne.htm This was a large, passenger gyrodyne which had a separate lift rotor and two turboprops mounted on a short wing. For take-off and landing, gas from the turboprops was diverted to jets at the tip of the lifting rotor, providing the thrust to spin it. For level flight, the turboprops drove conventional propellers with the autorotating rotor providing about half the lift. Disadvantages compared with the V-22? Separate systems for vertical and level flight. Advantages compared with the V-22? The lift rotor and propellers were designed to be optimal for their tasks, instead of being a compromise. The autorotating ability of the big lift rotor provided a safety margin. And the whole thing was technically simple and trouble-free. It WORKED - decades ago! Its only really problem was noise from the tip-jets, but that would be far less of an issue for a military plane and they were working on that anyway. It was only cancelled due to political/industrial reasons. The company whose website contains the info listed above is proposing developing new gyrodynes by converting ewxisting fixed-wing planes - notably, the C-130 Hercules! This seems like a much lower-risk approach than tilt-rotors. Tony Williams Military gun and ammunition website: http://www.quarry.nildram.co.uk Discussion forum at: http://forums.delphiforums.com/autogun/messages/ |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
how much money have you lost on the lottery? NOW GET THAT MONEY BACK! | shane | Home Built | 0 | February 5th 05 07:54 AM |
Late evening push back | ellx | Instrument Flight Rules | 0 | January 10th 05 09:17 PM |
430/530 Back Course Question... | Bill Hale | Instrument Flight Rules | 3 | February 12th 04 05:04 AM |
The Little Wheel in Back | Veeduber | Home Built | 6 | September 8th 03 10:29 AM |
Localizer Back Course vs. ILS | ilsub | Instrument Flight Rules | 8 | August 25th 03 04:04 PM |