| | От | Д.И.У. |  |
| К | Дм. Журко |  |
| Дата | 14.03.2008 00:33:06 |  |
| Рубрики | Современность; Армия; |  |
Re: Это разные...
>Картинка недоступна.
Картинок Х-32 много - http://images.google.com/images?um=1&hl=en&rls=com.microsoft%3Aru%3AIE-SearchBox&rlz=1I7SUNA&q=Boeing+X-32&btnG=Search+Images
Однако в 2001 г. был выбран Х-35, как involving lower risk, то есть менее рискованный.
Помимо разных фюзеляжей, различия у них были и в способе подъема:
"The STOVL version of the Boeing JSF proposal drove engine thrust forward to a pair of vectored lift nozzles under the aircraft's center of gravity. The nose intake scoop hinged forward to provide greater airflow for a short takeoff. To achieve the thrust needed for STOVL operation, Boeing began work with Pratt & Whitney to uprate the thrust of the already powerful F119 afterburning turbofan...
The Lockheed-Martin JSF was a more conventional design... The STOVL version featured a vertically mounted "lift fan" behind the cockpit, driven by a shaft off the P&W F119 engine, plus a vectored exhaust and two exhaust ducts, extending from each side of the engine to exit in the bottom of the wings.
The lift fan approach had the advantage that it minimized hot exhaust ingestion back into engine, a common problem with STOVL designs that robs them of vertical thrust. The configuration had some resemblance to that pioneered by the Russian Yakovlev Yak-41 "Freestyle" STOVL fighter, which did not enter production."