Northrop YF-23a | |
|---|---|
| 国 | 米国 |
| 役割 | ステルス戦闘機技術デモンストレーター |
| 初飛行 | 1990年8月27日 |
| 構築 | 2 |
ノースロップ/マクドネル・ダグラス YF-23 アメリカ空軍(USAF)のために設計されたアメリカの単一座席、双発ステルス戦闘機技術のデモンストレーターでした。このデザインは、米国AFのアドバンスト・タクティカル・ファイター(ATF)コンペティションのファイナリストで、ロッキードYF-22と生産契約を結びました。「ブラックウィドウII」と「グレーゴースト」の愛称で呼ばれる2つのYF-23プロトタイプが構築されました。
ソース： ウィキペディアのノースロップ YF-23
| Northrop YF-23 Walk Around | |
|---|---|
| カメラマン | セス・ヘンドリックス |
| ローカライズ | 知りません |
| 写真 | 100 |
| Northrop YF-23 Walk Around | |
|---|---|
| カメラマン | Dale Elhardt |
| ローカライズ | 知りません |
| 写真 | 59 |
| YF-23 Black Widow II Walk Around | |
|---|---|
| カメラマン | Unknow |
| ローカライズ | マイケル・ベノールキン |
| 写真 | 27 |
関連項目:
The Master of High-Altitude Stealth
ザ ノースロップ YF-23 was a prototype fifth-generation fighter developed for the U.S. Air Force’s Advanced Tactical Fighter (ATF) competition. Competing against the Lockheed YF-22 (the future F-22 Raptor), the YF-23 was designed with a focus on extreme stealth そして high-speed supercruise. While the YF-22 was more agile in a dogfight, many aviation experts argue the YF-23 was the superior “ghost” aircraft—faster and harder to detect on radar. Ultimately, it lost the competition in 1991, but it remains one of the most futuristic aircraft ever flown.
| Attribute | Technical Specification (YF-23) |
|---|---|
| 役割 | Stealth Air Superiority Fighter |
| 乗組員 | 1 (Pilot) |
| First Flight | August 27, 1990 |
| パワープラント | 2 × Pratt & Whitney YF119 or General Electric YF120 |
| 最高速度 | Mach 2.2+ (1,450+ mph) |
| Supercruise | Mach 1.6+ (Without afterburner) |
| Combat Radius | 750–800 nmi |
| Armament (Planned) | 1 × 20mm M61 Vulcan; 4 × AIM-120 AMRAAM; 2 × AIM-9 Sidewinder |
Revolutionary Stealth Engineering
- Diamond Wing Planform: The YF-23 utilized a unique diamond-shaped wing that reduced radar cross-section while providing excellent lift at high speeds. This design avoided the need for separate horizontal stabilizers, combining them into two massive “all-moving” V-tails.
- Serpantine Inlets: To hide the highly reflective engine fan blades from enemy radar, Northrop designed “S-duct” air intakes. These curved ducts ensured that radar waves could not travel directly to the engine face.
- Infrared Masking: One of the YF-23’s greatest innovations was placing the engines on the top of the fuselage. The exhaust flowed over specialized heat-ablative tiles (derived from the Space Shuttle), which cooled the gases rapidly to hide the plane from heat-seeking missiles.
- Weapon Internalization: To maintain its stealth profile, all weapons were stored in a single large internal bay. This prevented the “drag” and radar reflections caused by external missiles.
The ATF Competition and Legacy
- Speed vs. Agility: The Air Force chose the YF-22 largely because it featured thrust-vectoring nozzles, making it more maneuverable in close-range combat. The YF-23 was faster and stealthier but was seen as a higher-risk design with less emphasis on dogfighting.
- The Prototypes: Only two were built: PAV-1 (The “Black Widow II,” painted charcoal) and PAV-2 (The “Gray Ghost”). PAV-1 used P&W engines, while PAV-2 used the more powerful variable-cycle GE engines.
- Supercruise King: During testing, the YF-23 demonstrated an incredible ability to sustain supersonic speeds without using fuel-hungry afterburners, a feat that would have allowed it to cross battlefields faster than any contemporary threat.
- Where are they now? Both prototypes are preserved. PAV-1 is at the National Museum of the U.S. Air Force in Ohio, and PAV-2 is at the 西部飛行博物館 in California.
再生 : 4373
