Grumman X-29 : 無料・フリー素材/写真
Grumman X-29 / mjhbower
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Researchers flew the X-29 to explore the use of advanced composite materials in aircraft construction, variable-camber wing surfaces, forward-swept wings (unfortunately not really visible here) with a thin supercritical airfoil, close-coupled canards, and digital fly-by-wire controls. The DFBW system made the inherently unstable aircraft flyable. The complex geometries of the wings and canards provided exceptional maneuverability. In addition, air moving over the forward-swept wings tended to flow inward toward the root of the wing, rather than outward toward the wingtip (as occurs on an aft-swept wing). This reversed airflow prevented the wingtips and their ailerons from stalling before the rest of the wing. Since wings usually stall inboard first, this gave pilots greater control. To reduce cost, the X-29 was assembled from as many off-the-shelf aircraft components as possible, including landing gear from an F-16, cockpit from an F-5, and the same type of engine as used on the F-18. The wings and canards were constructed entirely from carbon fiber composites, the first such aircraft structures ever built. Two X-29 aircraft were flown 422 times between 1984 and 1992. (transcribed from exhibit placard, see NASA Armstrong Fact Sheet: X-29 Advanced Technology Demonstrator Aircraft for more) |
| 撮影日 | 2015-02-21 13:10:42 |
| 撮影者 | mjhbower |
| タグ | |
| 撮影地 | |
| カメラ | iPhone 6 Plus , Apple |
| 露出 | 1/3000 sec |
| 開放F値 | f/2.2 |