Chuck Yeager, Glamorous Glennis, and the Broomstick That Broke the Sound Barrier With Two Cracked Ribs

On October 14, 1947, US Air Force test pilot Chuck Yeager became the first person to fly faster than sound, reaching Mach 1.06 - roughly 700 mph at altitude - in the Bell X-1 rocket plane over California’s Mojave Desert. What most accounts leave out: Yeager made the flight with two cracked ribs from a horse-riding fall days earlier, and used a sawed-off broomstick to lever the cockpit hatch shut because he couldn’t reach across his own body to close it.

Why the Sound Barrier Was Considered a “Wall”

In the 1940s, pilots and engineers didn’t treat the speed of sound as a milestone. They treated it as a wall - and with good reason.

During World War II, pilots diving high-performance fighters near the speed of sound reported violent buffeting, controls that froze solid, and aircraft that shook themselves apart. The P-38 Lightning was notorious for tucking its nose under in a high-speed dive and refusing to recover, killing experienced pilots.

There was real data, real wreckage, and real funerals behind the fear. British test pilot Geoffrey de Havilland Jr. was killed when his aircraft, the Swallow, broke apart in the air while chasing the same goal. This was a hard engineering problem with a body count.

What Made the Bell X-1 Different

Rather than sneaking up on the problem, the Americans built a machine designed for the sole purpose of running straight at the barrier. Bell Aircraft of Buffalo, New York produced a small orange airplane called the XS-1 - Experimental, Sonic, number 1 - soon shortened to the X-1.

It didn’t look like a rocket plane. It was stubby, about 31 feet long, with thin, straight wings and a fuselage shaped deliberately like a .50-caliber machine gun bullet. The reasoning was elegant: a .50-cal bullet was one object engineers knew could fly faster than sound and stay stable. When you don’t know the answer, copy something that already works.

The X-1 ran on a rocket engine with four chambers burning alcohol and liquid oxygen, producing about 6,000 pounds of thrust. But it carried only a few minutes of fuel, so it couldn’t take off on its own. A B-29 bomber carried it to altitude in its bomb bay and dropped it. The first thing that happened on every flight was that the pilot fell out of another airplane before lighting the rocket.

Who Was Chuck Yeager?

Charles Elwood “Chuck” Yeager came from Myra, West Virginia - coal and hollow country. He kept his soft mountain drawl his whole life and never went to college. He entered the Army as an enlisted aircraft mechanic before he ever reached a cockpit, and that hands-on knowledge of machines from the inside out shaped him as a pilot.

Flying P-51 Mustangs over Europe, Yeager was shot down over occupied France, escaped over the Pyrenees with help from the Resistance, and then argued his way back into combat - regulations normally barred an evader who’d been helped by the underground from flying over enemy territory again. He took his case up to General Eisenhower’s staff and won. He became an ace, once downing five German aircraft in a single day.

But he was chosen for the X-1 for a different reason: his hands and his calm. Flight doctors measured his heart rate under stress and could barely believe how steady it stayed. He named the airplane Glamorous Glennis after his wife, Glennis - as he did with every plane he flew during the war.

The Two Cracked Ribs and the Broomstick

Two nights before the flight, Yeager and Glennis went horseback riding in the desert near Pancho Barnes’s Happy Bottom Riding Club, the dude ranch where test pilots drank and swapped stories. Riding back in the dark, Yeager’s horse hit a closed gate, throwing him over the front. He cracked two ribs.

The stakes were obvious. If the flight surgeon learned he was injured, he’d be pulled from the flight and the mission would go to the next pilot in line. So Yeager kept it quiet, visiting a civilian doctor in the nearby town of Rosamond to get the ribs taped.

That created a real mechanical problem. The X-1’s hatch wasn’t hinged like a car door - it was a hatch the pilot had to pull shut and latch from inside, requiring a hard pull with the right arm reaching across the body. With two cracked ribs on his right side, Yeager physically could not generate the leverage.

He confided in one man: engineer and friend Jack Ridley. Rather than talk him out of it, Ridley sawed off a roughly 9-inch length of broom handle. Slipped through the hatch handle, it became a lever that let Yeager close the door sideways using his good arm and shoulder - without reaching across his broken ribs.

What Happened on the Flight

On the morning of October 14, 1947 - a Tuesday - crews loaded Glamorous Glennis into the belly of the B-29 before dawn. The bomb bay was brutally cold, made worse when the liquid oxygen oxidizer, colder than -300°F, frosted the cockpit windows and stiffened the controls.

Yeager climbed down a ladder into the X-1 as both aircraft passed through about 20,000 feet. Ridley passed him the broomstick, and Yeager levered the hatch shut - no one else aware of his injury.

At roughly 20,000 feet, the B-29 nosed over, counted down, and released. The little orange airplane dropped into sunlight, and Yeager lit the rocket chambers one at a time. A rocket doesn’t spool up gently like a jet - it kicks, and the aircraft leapt forward.

Watching the Machmeter, which reads speed as a fraction of the speed of sound, Yeager climbed through Mach 0.82, 0.88, 0.92. The predicted buffeting arrived; the nose grew heavy. This was the wall that had killed de Havilland. At Mach 0.94, then 0.96, the needle suddenly jumped off the scale and pinned itself - and at that same instant, the buffeting stopped completely. The airplane went smooth as glass.

Yeager had outrun his own sound. He reached Mach 1.06. On the ground, observers heard a sonic boom roll across the flats like thunder on a clear day - the first sonic boom in history made by a piloted aircraft. One observer feared the X-1 had exploded. Out of fuel, Yeager glided the airplane back down dead-stick and landed cleanly on the lakebed. Colleagues later said his radio report sounded like a man describing a drive to the grocery store.

Why the Flight Stayed Secret

The public didn’t find out - the flight was classified for the better part of a year. There was no parade in 1947; when the story finally leaked through a magazine, the Air Force scrambled to catch up. Yeager received a quiet handshake and orders to keep flying faster.

He remained a test pilot at Edwards for years while others became famous, flew nearly everything with wings, and kept flying into his eighties. On the 50th anniversary of the flight, he pushed a supersonic jet back through the sound barrier one more time. Chuck Yeager died in December 2020 at age 97.

Jack Ridley, the engineer behind the broomstick, is remembered by fewer people. He died young in a plane crash in 1957 - ten years after the flight - and Yeager grieved him for the rest of his long life.

Where to See Glamorous Glennis Today

The original X-1, Glamorous Glennis, hangs in the main hall of the National Air and Space Museum in Washington, D.C. In person, the little orange bullet is smaller than most visitors expect.

Key Takeaways

• Chuck Yeager broke the sound barrier on October 14, 1947, reaching Mach 1.06 (about 700 mph) in the Bell X-1 over the Mojave Desert.
• The X-1 was shaped like a .50-caliber bullet, ran on an alcohol/liquid-oxygen rocket producing 6,000 lbs of thrust, and was air-dropped from a B-29 because it couldn’t take off on its own.
• Yeager flew with two cracked ribs from a horse fall and used a 9-inch broomstick - cut by engineer Jack Ridley - to lever the cockpit hatch closed.
• The flight produced the first piloted sonic boom in history and stayed classified for nearly a year.
• The original X-1 is displayed today at the National Air and Space Museum in Washington, D.C.