Packard-Le Père LUSAC-11

Packard-Le Père LUSAC-11
País	E.e.u.u
Papel	Aviones de combate
Primer vuelo	15 de mayo de 1918
Construido	30

el LUSAC-11 (Lepère United States Army Combat) fue un avión de combate biplaza estadounidense. Fue un diseño francés, encargado y construido en los Estados Unidos durante la Primera Guerra Mundial y ordenado en grandes cantidades por el Cuerpo Aéreo del Ejército de los Estados Unidos, pero estos fueron cancelados al final de la guerra, y sólo 30 fueron construidos. El tipo fue utilizado con fines experimentales, estableciendo varios récords de altitud durante la década de 1920.

Fuente: Packard-Le Père LUSAC-11 en Wikipedia

Packard LePere LUSAC-11 Walk Around
Fotógrafo	Vladimir Yakubov
Localización	Museo Nacional de la USAF
Fotos	35

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A French Design with American Muscle

el Packard LePère LUSAC-11 (Lepère United States Army Combat) was a two-seat fighter designed by Captain Georges LePère of the French Air Service for production in the United States. While it arrived too late to see combat in World War I, it became a legendary testbed in the early 1920s. Armed with the powerful American Liberty Engine, it was one of the fastest and highest-climbing aircraft of its era, serving as the platform for pioneering research into high-altitude flight and turbocharging.

Attribute	Technical Specification (LUSAC-11)
Papel	Two-Seat Fighter / Reconnaissance
Equipo	2 (Pilot and Observer/Gunner)
First Flight	May 15, 1918
Planta motriz	1 × Liberty L-12 water-cooled V-12 engine
Horsepower	425 hp (317 kW)
Velocidad máxima	136 mph (219 km/h)
Service Ceiling	20,200 feet (Standard) / 34,500+ feet (Modified)
Armamento	2 × .30 cal Marlins (Forward); 2 × .30 cal Lewis guns (Rear)

Engineering for the Stratosphere

The Liberty Engine Integration: Unlike many contemporary biplanes that used lower-powered rotary engines, the LUSAC-11 was designed specifically around the liquid-cooled Liberty L-12. This engine provided a massive power-to-weight ratio for the time.
Veneer Fuselage: The aircraft featured a plywood-veneer monocoque fuselage, which was much stronger and more aerodynamic than the traditional fabric-on-wood-frame construction used on most WWI fighters.
Turbo-Supercharging Research: The LUSAC-11 was famously used by Dr. Sanford Moss to test the first exhaust-driven turbo-superchargers. This allowed the engine to maintain power even as the air thinned at high altitudes.
Staggered Wings: The biplane wings were staggered to improve the pilot’s visibility and aerodynamic efficiency, a hallmark of LePère’s clean French design philosophy.

A Legacy of Records

Shattering the Ceiling: On September 28, 1921, Lieutenant John A. Macready flew a specially modified LUSAC-11 to a world-record altitude of 34,509 feet. At this height, the air was so thin and cold that Macready required a primitive supplemental oxygen system.
The McCook Field Era: Most LUSAC-11s spent their careers at McCook Field in Ohio, the center of U.S. Army Air Service engineering. They were used to test everything from new propellers to early flight instruments.
Late to the Fight: Of the 3,500 units originally ordered, only about 25 were completed before the Armistice led to mass cancellations. Only two were actually shipped to France before the war ended.
Survivor: The only remaining LUSAC-11 is a centerpiece of the National Museum of the United States Air Force in Dayton, Ohio, restored to represent the aircraft used in the 1921 record flight.