British Future MPA
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Cor Blimey...the Nimrod's L & D handling characteristics could be bad enough.....that looks as though some good training on a skid pad would be required before any OCU....Still the pilots' coffee cups could provide some good turn and slip indications...a lot of the time!
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Just read this article,
It's a good job we have so many ASW assets to call on.......Oh!
DEBKAfile, Political Analysis, Espionage, Terrorism, Security
It's a good job we have so many ASW assets to call on.......Oh!
DEBKAfile, Political Analysis, Espionage, Terrorism, Security
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Tourist I think you have underestimated the galley requirements.....
I did a generous bathroom in the back enabling crew members to comfortably refresh, and redress themselves during long (refuelled) flights.
are those Twin Mambas hanging off the wings?
but new gen high power turbo props, think new GE38 / TP400 like rated at ~6000-8000 for this application. PW is also working on something. They are indeed hanging under the wings.
Last edited by keesje; 13th Jun 2011 at 15:57.
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I don't own this space under my name. I should have leased it while I still could
Just how quiet are these fan-jets as far as putting noise into the water. AKAIK the Nimrod was much quieter than the P3 but either could be counter-detected on a sub-sonar array.
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Mrs D'Sorderlee was less than convinced by the Marshalls plan. She suggested that it probably needed another wing, or it would have really poor handling qualities!
Duncs
Duncs
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Just how quiet are these fan-jets as far as putting noise into the water. AKAIK the Nimrod was much quieter than the P3 but either could be counter-detected on a sub-sonar array.
I can imagine that optimizing for low noise goes at the cost of efficiency. I guess it could be introduced as an options on engines if required. A "silent" mode to be selcted by the crew. Different rpm's, blade angles..
Last edited by keesje; 19th Jun 2011 at 20:27.
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An interesting view not shared by either Airbus or Boeing.
Boeing has been collaboratively testing this engine with RR but remains very unconvinced of its future.
Boeing boss green-lights all-new next generation narrowbody
2011 Outlook for Aerospace « Leeham News and Comment
And RR says it won’t be ready till at least 2020.
Movie Monday - March 7 - The Mystery of Flight 447 - FlightBlogger - Aviation News, Commentary and Analysis
Boeing has been collaboratively testing this engine with RR but remains very unconvinced of its future.
Boeing has three potential engines at its disposal for its new narrowbody including the current next-generation offerings from CFM and Pratt & Whitney, as well as the Rolls-Royce 133-445kN (30,000-100,000lb) thrust Advance3 future three-shaft Trent powerplant, which is currently in development and slated for a 2017 or 2018 entry into service.
Open Rotors: Based on our conversations with engineers and Boeing, we remain highly skeptical of open-rotors. Noise, maintenance, safety, size, weight, dimension of the rotor, application and speed all seem to work against this engine type and nobody we know suggests any different.
Even Leahy says the open-rotor Airbus believes in won’t likely be the open-rotor as we know it today. One concept is a shrouded open-rotor (isn’t that essentially the ducted fan?), which to us seems to add more weight and issues than problems it solves.
Furthermore, both PW and CFM believe that their new engines will, by 2025, have sufficient gains in fuel burn (typically 1% per year) that consumption will pretty well match that promised by open-rotors without the challenges.
Even Leahy says the open-rotor Airbus believes in won’t likely be the open-rotor as we know it today. One concept is a shrouded open-rotor (isn’t that essentially the ducted fan?), which to us seems to add more weight and issues than problems it solves.
Furthermore, both PW and CFM believe that their new engines will, by 2025, have sufficient gains in fuel burn (typically 1% per year) that consumption will pretty well match that promised by open-rotors without the challenges.
And RR says it won’t be ready till at least 2020.
Lastly, if cleansheet 737 and A320 replacements slip beyond 2022, Rolls believes an Open Rotor design with gas turbine powered contra-rotating propellors becomes a viable option for the 20,000-35,000lb thrust range likely not available before 2025. Horwood is quick to admit that there are many open questions about the technology which could deliver a 30% improvement in fuel consumption and CO2.
Last edited by Bevo; 20th Jun 2011 at 04:42.
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...and that C130 design didn't have any laser turrets either, so how's that meant to work then?
I like the BV 141 though - getting p****d and scrawling something as elegant as a duck on LSD is one thing, persuading somebody to build and fly it is taking the joke to a whole new level.
I like the BV 141 though - getting p****d and scrawling something as elegant as a duck on LSD is one thing, persuading somebody to build and fly it is taking the joke to a whole new level.
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The Marshall's plan won't survive first contact as they can't even spell sonobuoy. Oh, and as Duncs says, it isnae very aerodynamic!!!
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keesje
It has occured to me after looking at your latest computer generated mpa pic that you have put your name on the pic, as if you are afraid somebody is going to run with your idea and deprive you of your intelectual property.
This suggests to me that rather than doing this as a bit of a running joke that we have been playing along with, you might actually believe that this is something that might parallel reality somewhere other than in your head.
Please tell me that you know it is silly?
It has occured to me after looking at your latest computer generated mpa pic that you have put your name on the pic, as if you are afraid somebody is going to run with your idea and deprive you of your intelectual property.
This suggests to me that rather than doing this as a bit of a running joke that we have been playing along with, you might actually believe that this is something that might parallel reality somewhere other than in your head.
Please tell me that you know it is silly?
