
Vultee BT-13 Valiant | |
| Paese | Usa |
| Ruolo | Aerei da addestramento |
| Primo volo | Marzo 1939 |
| Costruito | 9525 |
Le Vultee BT-13 Valoroso era un aereo da addestramento di base americano della seconda guerra mondiale costruito dalla Vultee Aircraft per l'United States Army Air Corps, e successivamente per le US Army Air Forces. Una successiva variante del BT-13 in servizio USAAC/USAAF era conosciuta come BT-15 Valiant, mentre una versione identica per la US Navy era nota come SNV ed era utilizzata per addestrare gli aviatori navali per la US Navy e i suoi servizi gemelli, il Corpo dei Marines degli Stati Uniti e la Guardia Costiera degli Stati Uniti
fonte: Vultee BT-13 Valiant su Wiki
| Vultee BT-13 Valiant | |
|---|---|
| Fotografo | Vladimir Jakubov |
| Localizzazione | Museo della base aerea di Travis |
| Foto | 102 |
| BT-13B Valiant Camminare Intorno | |
|---|---|
| Fotografo | Don Busack |
| Localizzazione | Inconsapevole |
| Foto | 17 |
Vedi anche:
| Vultee BT-13B Valiant | |
|---|---|
| Fotografo | Vladimir Jakubov |
| Localizzazione | Spettacolo Hollister Air |
| Foto | 114 |
The “Basic” Step to Victory
Le Vultee BT-13 Valoroso was the primary “Basic” trainer for the U.S. Army Air Forces during WWII. After cadets survived primary training in biplanes or light monoplanes like the PT-22, they moved to the BT-13. It was a larger, heavier aircraft designed to introduce students to more complex systems like two-way radios, landing flaps, and two-position controllable-pitch propellers. Despite its official name, almost every pilot who flew it knew it as the “Vibrator.” This was due to its tendency to shake violently at high speeds or during stalls, and the way the canopy windows would rattle during takeoff.
| Attribute | Technical Specification (BT-13A) |
|---|---|
| Ruolo | Formatore di base |
| Equipaggio | 2 (Student and Instructor) |
| Motopropulsore | 1 × Pratt & Whitney R-985-AN-1 Wasp Junior radial |
| Horsepower | 450 hp (336 kW) |
| Velocità massima | 290 km/h (180 mph) |
| Cruising Speed | 225 km/h (140 mph) |
| Construction | Steel tube fuselage (forward), Semi-monocoque (aft) |
| Landing Gear | Fixed (Non-retractable) |
Design Engineering: The “Basic” Complexities
- The Wasp Junior: The BT-13 was powered by the Pratt & Whitney R-985. This was a significant jump in power from primary trainers, giving students their first taste of a “real” radial engine. It featured a two-position Hamilton Standard propeller, teaching pilots how to manage RPM and manifold pressure.
- Hybrid Fuselage: The BT-13 featured a unique construction. The forward section (cockpit area) was made of welded steel tubing covered by removable metal panels for easy maintenance, while the rear section was a light-alloy semi-monocoque structure.
- Fixed Gear, Heavy Handling: Unlike the advanced AT-6, the BT-13 had fixed landing gear. This simplified maintenance but limited its top speed. Its heavy control feel was intentional, meant to prepare students for the physical effort required to fly heavy bombers and fighters.
- The “SNV” Variant: The U.S. Navy also used the aircraft extensively, designating it the SNV. Aside from minor equipment differences, it was essentially the same rugged “Vibrator” used by the Army.
Legacy: The “Valiant” Movie Star
- Mass Production: Over 9,500 BT-13s were built. During the peak of the war, Vultee’s Downey, California plant was turning out one aircraft every few minutes using a revolutionary (for the time) powered assembly line.
- Hollywood Zero: Because of its general shape and the availability of surplus airframes, dozens of BT-13s were modified after the war to look like Japanese Aichi D3A “Val” dive bombers or Nakajima B5N “Kate” torpedo bombers for films like Tora! Tora! Tora! e The Midway.
- The “BT-15”: When the supply of Pratt & Whitney engines ran low, Vultee equipped the airframe with the Wright R-975 engine, resulting in the BT-15. Pilots generally preferred the BT-13, as the Wright engine was considered more temperamental.
- Post-War Utility: Many surplus BT-13s were used by crop dusters and private owners after 1945. Today, they are cherished warbirds, prized for their relatively affordable operation and the authentic 1940s radial engine experience they provide.
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