The Bell XP-59 Airacomet, the Fake Wooden Propeller on a Jet Airplane, and the Mojave Morning That Started American Jet Aviation

On October 1, 1942, at Muroc Dry Lake, California, American aviation crossed a threshold that most of the world wouldn’t hear about for years. Robert Stanley, Bell Aircraft’s chief test pilot, flew the Bell XP-59A Airacomet - the first jet-powered aircraft ever flown by an American - over the Mojave Desert in near-total secrecy. Bolted to the nose of this propellerless aircraft was a dummy wooden propeller, placed there so that anyone who glimpsed the machine from a distance would mistake it for something ordinary.

How America Got a Jet Engine: The Whittle Transfer

The story begins in Britain. Frank Whittle, a Royal Air Force officer and engineer, had been developing the gas turbine jet engine concept since the late 1920s. He patented his design in 1930, was dismissed by the Air Ministry as impractical, and kept working anyway. By 1937, Whittle had run his first practical jet engine. By 1941, the Gloster E.28/39 had already flown on Whittle’s power.

In April 1941, General Henry “Hap” Arnold, commanding general of the U.S. Army Air Forces, visited Britain. The British showed him what they had - and then handed it over outright. Whittle’s blueprints, technical documentation, and a running engine were transferred to the Americans at no cost and with no conditions. Just: here, build this, let’s win this war together.

It remains one of the most consequential technology transfers of the Second World War.

Why Bell and General Electric?

Arnold needed two things: an airframe builder and an engine manufacturer. For the engine, he chose General Electric. GE had spent years building turbosuperchargers for high-altitude bombers - rotating machinery engineered to handle extreme heat and pressure. The thermodynamic principles overlapped directly with Whittle’s design, making them the right call.

For the airframe, Arnold chose Bell Aircraft of Buffalo, New York. Bell had already designed the P-39 Airacobra - a fighter with an unconventional mid-mounted engine and drive shaft running beneath the cockpit floor. They were comfortable with unorthodox layouts and had the manufacturing capacity for a wartime crash program.

The contract was signed in September 1941.

The Secrecy Apparatus: Gliders, Crates, and a Fake Propeller

The program’s secrecy classification ranked among the highest in American military aviation at the time. Workers at Bell were told they were building an experimental glider. The aircraft was officially designated the XP-59A - the “A” suffix deliberately suggesting a variant of a pre-existing Bell design called the XP-59, which had nothing to do with jet propulsion. They were covering their tracks at every level.

Moving the aircraft from Buffalo to Muroc required the same misdirection. The Airacomet was disassembled, crated under “glider components” labels, and shipped west. In case anyone glimpsed the machine partially assembled at a rail yard or during transit, crews bolted a dummy wooden propeller to the nose. In 1942, a propeller signaled a conventional airplane. It was pure theater - and it worked.

That propeller was never connected to an engine. It never turned under power.

The First Flight: October 1, 1942

The Airacomet arrived at Muroc in late September 1942. Muroc Dry Lake offered roughly 44 square miles of flat, hard lakebed - a nearly perfect natural runway in an isolated desert location, far from civilian observers.

On the morning of October 1, 1942, Stanley climbed into the cockpit and started both General Electric I-A turbojet engines, each producing approximately 1,250 pounds of thrust. There was no propeller wash, no cylinders firing in sequence. Just a rising whine climbing in pitch until the aircraft began to roll.

The acceleration was smooth in a way no piston pilot had experienced before - no surge, no vibration, no torque. The Airacomet lifted off and climbed into the clear Mojave sky. Stanley flew for approximately 30 minutes. When he landed, he had become the first American to fly a jet aircraft.

Colonel Laurence Craigie, present as the Army Air Forces’ representative, flew it the same day. Craigie would go on to become one of the Air Force’s most influential development officers. On October 1, 1942, he was simply a colonel who needed to understand firsthand what American aviation had just done.

What the Airacomet Could and Couldn’t Do

The test program that followed was honest about the aircraft’s limitations. The I-A engines were underpowered relative to the airframe’s weight. Top speed was approximately 413 mph - competitive on paper, but contemporary propeller-driven fighters like the Spitfire Mk. IX and the P-51 Mustang reached similar speeds with better range, better reliability, and without the mechanical teething problems of early jet engines.

The Airacomet also suffered from endurance problems and handling characteristics that required significant refinement. A total of 13 aircraft were built, plus three pre-production variants. None ever flew in combat.

The Army Air Forces concluded that the XP-59A had demonstrated the viability of American jet propulsion - but it wasn’t the combat aircraft the war required. That machine would be the Lockheed P-80 Shooting Star, which benefited directly from everything the test program at Muroc had learned.

Why the Airacomet Wasn’t a Dead End

The Airacomet’s real contribution wasn’t performance. It was knowledge.

The pilots who flew it were learning something no conventional cockpit could teach: what it means to fly on thrust rather than torque. Jet throttle response was sluggish compared to a prop fighter - the engine needed time to spool up. Energy management had to be planned further ahead. A sudden throttle push didn’t produce an immediate surge. You had to think ahead of the aircraft, not react to it.

Those lessons were absorbed directly into training programs and design requirements for everything that came after. The roughly two dozen pilots who flew the Airacomet became the institutional foundation of American jet aviation - carrying operational knowledge that no one else on earth had yet earned.

Seventeen Months from Handshake to Flight

The timeline alone is remarkable. From Arnold’s visit to Britain in April 1941 to Stanley’s first flight on October 1, 1942 was approximately 17 months. In that window, General Electric reverse-engineered, refined, and Americanized a British engine design they had never previously encountered. Bell Aircraft designed an entirely new airplane built around twin engines of a type no American had ever built. Both companies solved supply chain, materials, and manufacturing problems simultaneously - under wartime secrecy and wartime pressure.

The Germans had their own jet programs underway. The Messerschmitt Me 262 would eventually reach combat and prove formidable. But German intelligence had no knowledge that America had already flown a jet aircraft in October 1942. The program remained classified until after the war ended.

The wooden propeller had done its job.

Why This Matters for Pilots Today

Every jet pilot flying today - from an airline first officer to a private pilot transitioning to a turbine - flies aircraft that trace their lineage through the lessons first learned at Muroc in 1942 and 1943. The energy management principles that define jet operations - spool-up lag, power planning, thinking ahead of the aircraft - were first systematized by the men who flew the Airacomet and had to work it out from scratch.

October 1, 1942 also marks the beginning of the end for the piston engine’s dominance of military aviation. The transition that followed was rapid, profound, and irreversible. The date carries something bittersweet for those who love the sounds and rhythms of a round engine, alongside the undeniable achievement it represents.

Robert Stanley didn’t get a parade when he landed that airplane on the lakebed. He got a handshake and a security reminder. The story wouldn’t be told publicly for years.

Key Takeaways

On October 1, 1942, Bell Aircraft test pilot Robert Stanley flew the XP-59A Airacomet at Muroc Dry Lake, California - the first jet-powered flight by an American.
The program traced directly to a British technology transfer: the U.S. received Frank Whittle’s engine blueprints and a running engine in early 1941, going from contract signature to first flight in roughly 17 months.
The Airacomet’s top speed of approximately 413 mph and early engine reliability issues made it unsuitable for combat; 13 aircraft were built, none of which saw the front line.
Its true value was educational - the small group of pilots who flew it established the energy management and throttle-planning principles that underpin jet aviation to this day.
The program stayed classified until after World War II ended; a dummy wooden propeller bolted to the nose served as the primary cover during transport and ground operations.