| Home |
| Search |
| Today's Posts |
|
#12
|
|||
|
|||
Greater lift for aircraft
"Bertie the Bunyip" wrote in message ws.com... (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. "mbrookesn231" wrote in le.rogers.com: That makes no sense, according to that theory the wheel should lower the amount of lift, seeing as the lower part of the wheel is going in the direction of the air. nope, he's right, It's the greater speed of the upper part of the wheel that would increase it but it's insignificant in any case. Bertie the amount of theoretical lift generated is negligible, whereas the drag generated from extended gear is not Well, exactly. though on some aircraft the drag caused during retraction is considered worse than leaving it down in the event of an engine failure! Bertie true. Can't think of one off the top of my head, though! Bertie Any A/C that the gear rotates 90 degrees to stow would have greater drag during the "Rotate/Stow" sequence. Ralph Nesbitt Professional FD/CFR/ARFF Type |
|
#13
|
|||
|
|||
|
Greater lift for aircraft
Ralph Nesbitt wrote:
Well, exactly. though on some aircraft the drag caused during retraction is considered worse than leaving it down in the event of an engine failure! Bertie true. Can't think of one off the top of my head, though! Any A/C that the gear rotates 90 degrees to stow would have greater drag during the "Rotate/Stow" sequence. Many aircraft have gear doors that open for retraction/extension, but are closed when the gear is locked in place, either up or down. In those aircraft, drag will be higher during the extension or retraction sequence, as an extra door is open and hanging in the breeze. Mike |
|
#14
|
|||
|
|||
|
Greater lift for aircraft
"Ralph Nesbitt" wrote in
: "Bertie the Bunyip" wrote in message ws.com... (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. "mbrookesn231" wrote in le.rogers.com: That makes no sense, according to that theory the wheel should lower the amount of lift, seeing as the lower part of the wheel is going in the direction of the air. nope, he's right, It's the greater speed of the upper part of the wheel that would increase it but it's insignificant in any case. Bertie the amount of theoretical lift generated is negligible, whereas the drag generated from extended gear is not Well, exactly. though on some aircraft the drag caused during retraction is considered worse than leaving it down in the event of an engine failure! Bertie true. Can't think of one off the top of my head, though! Bertie Any A/C that the gear rotates 90 degrees to stow would have greater drag during the "Rotate/Stow" sequence. Ralph Nesbitt Well, I ws thinking more of ther gear doors opeing and closing during the sequence. Bertie |
|
#15
|
|||
|
|||
|
Greater lift for aircraft
Bertie the Bunyip wrote in message . ..
"Ralph Nesbitt" wrote in : "Bertie the Bunyip" wrote in message ws.com... (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. "mbrookesn231" wrote in le.rogers.com: That makes no sense, according to that theory the wheel should lower the amount of lift, seeing as the lower part of the wheel is going in the direction of the air. nope, he's right, It's the greater speed of the upper part of the wheel that would increase it but it's insignificant in any case. Bertie the amount of theoretical lift generated is negligible, whereas the drag generated from extended gear is not Well, exactly. though on some aircraft the drag caused during retraction is considered worse than leaving it down in the event of an engine failure! Bertie true. Can't think of one off the top of my head, though! Bertie Any A/C that the gear rotates 90 degrees to stow would have greater drag during the "Rotate/Stow" sequence. Ralph Nesbitt Well, I ws thinking more of ther gear doors opeing and closing during the sequence. Bertie which in Tarverworld would mean that the transitioning gear doors, creating drag, would therefore be acting like a spolier and seeing that a spolier is a flap will make the wing thicker therfore creating lift. ergo a gear door is a lift device ! |
|
#16
|
|||
|
|||
|
Greater lift for aircraft
(running with scissors) wrote
in om: Bertie the Bunyip wrote in message . .. "Ralph Nesbitt" wrote in : "Bertie the Bunyip" wrote in message ws.com... (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. (running with scissors) wrote in om: Bertie the Bunyip wrote in message . .. "mbrookesn231" wrote in le.rogers.c om: That makes no sense, according to that theory the wheel should lower the amount of lift, seeing as the lower part of the wheel is going in the direction of the air. nope, he's right, It's the greater speed of the upper part of the wheel that would increase it but it's insignificant in any case. Bertie the amount of theoretical lift generated is negligible, whereas the drag generated from extended gear is not Well, exactly. though on some aircraft the drag caused during retraction is considered worse than leaving it down in the event of an engine failure! Bertie true. Can't think of one off the top of my head, though! Bertie Any A/C that the gear rotates 90 degrees to stow would have greater drag during the "Rotate/Stow" sequence. Ralph Nesbitt Well, I ws thinking more of ther gear doors opeing and closing during the sequence. Bertie which in Tarverworld would mean that the transitioning gear doors, creating drag, would therefore be acting like a spolier and seeing that a spolier is a flap will make the wing thicker therfore creating lift. ergo a gear door is a lift device ! Snort! Bertie |
|
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Boat lift question | General | |||
| Boat Lift Remotes - Retrofit Possible? | General | |||
| Anyone have a 13" Whaler on a lift? | General | |||
| Lift over foils | Cruising | |||
| Boat lift control. | General | |||
Linear Mode
