보잉 307 스트라토라이너 | |
|---|---|
| 국가 | 미국 |
| 역할 | 여객기 |
| 첫 비행 | 1938년 12월 31일 |
| 내장 | 10 |
Tthe 보잉 모델 307 스트라토라이너 가압 된 오두막으로 서비스를 입력 하는 최초의 상업 수송 항공기. 이 기능을 통해 항공기는 많은 기상 장애보다 훨씬 높은 20,000피트(6,000m)의 고도에서 순항할 수 있었습니다. 압력 차동은 2.5 psi (17 kPa)였기 때문에 14,700 피트 (4,480 m)에서 기내 공기 압력은 8,000 피트 (2,440 m)의 고도에 해당했습니다. Model 307은 6명과 33명의 승객을 수용할 수 있었습니다. 민간 서비스 외에도 장거리 화물 리프트 항공기로 사용했던 미 육군 공군의 보잉 C-75 스트라토라이너로 비행했다.
| 보잉 모델 307 스트라토라이너 산책 | |
|---|---|
| 사진 작가 | 블라디미르 야쿠보프 |
| 로컬라이제이션 | 국립 항공 우주 박물관 |
| 사진 | 107 |
| Boeing Model 307 Stratoliner Walk Around | |
|---|---|
| 사진 작가 | Michael Benolkin |
| 로컬라이제이션 | Unknow |
| 사진 | 27 |
참고 항목:
A Revolution in Civil Aviation
Tthe 보잉 모델 307 스트라토라이너 was a milestone in aviation history. Introduced in 1938, it was the first commercial transport aircraft to feature a pressurized cabin. This allowed the Stratoliner to fly at 20,000 feet, far above the turbulent weather that plagued earlier airliners like the DC-3. By utilizing the wings, tail, and engines of the B-17 Flying Fortress, Boeing created a robust, high-altitude cruiser that changed the definition of luxury and speed in the “Golden Age” of flight.
| Attribute | Technical Specification (Boeing 307) |
|---|---|
| 역할 | Long-Range Commercial Airliner / Military Transport |
| 승무원 | 5 (Pilot, Co-pilot, Flight Engineer, 2 Flight Attendants) |
| First Flight | 1938년 12월 31일 |
| 동력 장치 | 4 × Wright GR-1820-G102 Cyclone radials |
| Horsepower | 1,100 hp (820 kW) per engine |
| 최대 속도 | 241 mph (388 km/h) |
| Cruising Altitude | 20,000 feet (6,100 m) |
| Passenger Capacity | 33 (Day) / 25 (Night Sleeper) |
Engineering the High-Altitude Cabin
- Circular Fuselage: Unlike the flat-sided aircraft of the era, the 307 featured a perfectly circular cross-section. This shape was necessary to evenly distribute the internal pressure stresses required to maintain a breathable atmosphere at high altitudes.
- Pressurization System: The Stratoliner used engine-driven superchargers to pump air into the cabin. This allowed passengers to enjoy an “8,000-foot” environment while the aircraft cruised at 20,000 feet, effectively avoiding the “bumps” of low-level air.
- B-17 DNA: To save on development costs and improve reliability, Boeing used the flight surfaces of the B-17C Flying Fortress. The wings, landing gear, and horizontal stabilizers were nearly identical to the bomber, giving the 307 legendary structural strength.
- Sleeper Comfort: The wide fuselage allowed for reclining seats and berths, making it one of the first true “sleeper” transports for transcontinental travel.
The “C-75” and Notable History
- Military Service (C-75): During WWII, the five Stratoliners operated by TWA were pressed into service for the Army Air Transport Command. Designated as C-75s, they were used for high-priority transatlantic flights because their pressurization allowed them to fly above most interception threats.
- Howard Hughes and the “Flying Penthouse”: The famous billionaire bought a Stratoliner and converted it into a lavish private office and home. After being damaged in a hurricane, the fuselage was eventually converted into a “Cosmic Muffin” house boat.
- Rare Survival: Only 10 Stratoliners were ever built. The only surviving example, the “Flying Cloud” (formerly of Pan Am), was meticulously restored by Boeing volunteers and is now at the Steven F. Udvar-Hazy Center.
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