The Bell XV-3 (Bell 200) is an American tiltrotor aircraft developed by Bell Helicopter for a joint research program between the United States Air Force and the United States Army in order to explore convertiplane technologies. The XV-3 featured an engine mounted in the fuselage with driveshafts transferring power to two-bladed rotor assemblies ...

The Bell XV-15 is an American tiltrotor VTOL aircraft. It was the second successful experimental tiltrotor aircraft and the first to demonstrate the concept's high speed performance relative to conventional helicopters.

xv-15傾轉旋翼機是贝尔直升机公司自xv-3傾轉旋翼機後另一種研發的傾轉旋翼機，該機的成功證明傾轉旋翼機這種集直昇機和螺旋槳飛機於一身的飛機是可行的，而在試飛期間也曾用來運送美國政府官員和軍方人員，從而令該項目得到更多人支持。

貝爾XV-3 （Bell XV-3）是一款由美國 贝尔直升机 研發的 倾转旋翼机，與 美國陸軍 和 美國空軍 一起探索 平直两用飞机 的可能性。 XV-3的特點是發動機放在機身中，旋翼能以90度傾斜方式安裝在翼尖，能垂直或水平方式切換，使飛機能以直升機模式升降，但以定翼機模式飛行。 XV-3於1955年8月11日首飛，儘管性能受限，但證明了 倾转旋翼机 概念的可行性，在1958年12月至1962年7月間進行了110次直與機和定翼機的切換。 1966年5月20日，飛機在風洞測試中嚴重 …

1973年，应美国NASA和陆军的要求，贝尔公司研制了两架贝尔30l倾转旋翼机，美国陆军把这两架试验机命名为XV-15。 该机被用于验证倾转旋翼技术方案、探索飞行包线并实际评定这种飞行器能否满足军用与民用运输需要。 [2] 1977年5月，第一架XV-15完成了首次自由悬停飞行。 1979年4月，第2架XV-15，开始了以直升机飞行方式进行的首次飞行。 1979年7月进行了从直升机飞行方式完全转换成 固定翼飞机 飞行方式的首次飞行状态转换试飞。 [2] 1982年夏季，按美国陆军特种 …

2003年9月11日 · The XV-15 combines standard aircraft cruise flight with vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. The first XV-15 Tiltrotor flight for NASA Dryden occurred in October 1980 at the Army contingent at Edwards Air Force Base, Edwards, California.

In 1972, with funding from NASA and the US Army, Bell Helicopter Textron started development of the XV-15, a twin-engine tiltrotor research aircraft. The first flight was on May 3rd, 1977. Two aircraft were built to prove the tilt-rotor design and explore the operational flight envelope for military and civil applications.

Bell XV-15A The XV-15 was Bell's second successful experimental tiltrotor aircraft after the XV-3. Powered by two 1550 shps Textron Lycoming LTC1K-4K turboshaft / turboprop engines derivated of the T53-L-13B.

The United States Bell XV-15 was the second successful experimental Tiltrotor VTOL aircraft and the first to demonstrate the concept’s high speed performance relative to conventional helicopters. Role: Experimental VTOL aircraft; Manufacturer: Bell Helicopter Textron; First flight: May 3, 1977; Status: Active service; Number built: 2

2023年9月27日 · Page details technical specifications, development, and operational history of the Bell XV-15 VTOL Technology Demonstrator including pictures. The global defense reference actively compiled since 2003