Bob Timm and John Cook and the Cessna one seventy-two that stayed airborne for sixty-four days over Las Vegas

Bob Timm and John Cook kept a 1958 Cessna 172 Skylark airborne for 64 days, 22 hours, 19 minutes, and 5 seconds over Las Vegas, landing on February 7, 1959. That world endurance flight record has never been broken. More than six decades later, it stands as one of the most remarkable achievements in general aviation history — set not in a purpose-built machine, but in the most ordinary training airplane ever produced.

How Did the Endurance Flight Start?

Robert Timm was a slot machine mechanic, not a professional pilot with military backing. In late 1958, he approached the Hacienda Hotel and Casino on the Las Vegas Strip with a proposal: he would break the existing endurance flight record — then around 50 days — in a stock Cessna 172, if the hotel would sponsor the attempt.

The Hacienda agreed. Las Vegas in the late 1950s thrived on spectacle, and two men trying to stay airborne for two months in a light airplane was exactly the kind of stunt that drew attention.

Timm chose John Cook as his copilot. Cook was a mechanic — a decision that proved critical to the flight’s success.

How Was the Cessna 172 Modified?

The airplane, a 1958 Cessna Skylark (the marketing name for the 172 at the time), carried tail number N9172B and wore Hacienda Hotel livery. The modifications were minimal but essential:

An auxiliary fuel tank to extend range between refueling runs
A plywood sleeping platform mounted over the rear seats
A system for in-flight resupply from a ground truck driving along straight desert roads south of Las Vegas

Refueling meant flying the Cessna at highway speed, roughly 20 feet off the desert floor, while Cook reached out and hooked a fuel line from a moving truck. These transfers happened day and night, in desert winds, with no safety net. A missed hookup meant circling back to try again.

What Was Daily Life Like for 64 Days in the Air?

The crew settled into a brutal routine. One man flew while the other attempted to sleep on the plywood platform — a surface about as comfortable as a park bench in turbulence. Desert thermals bounced the airplane constantly. The Continental O-300 engine droned six feet from their faces, 24 hours a day, without stopping.

Every few hours, they rendezvoused with the ground truck for fuel, oil, food, and water. They heated soup on a small camping stove rigged inside the cabin — an open flame in a Cessna at altitude, a choice that reflected the era’s different relationship with risk.

By week two, sleep deprivation began taking a serious toll. By the later weeks, Timm reported he couldn’t remember entire days. Blank spots where exhaustion erased the hours. Their backs ached, their legs cramped, and the cabin reeked of oil, sweat, and canned food.

They spent Christmas in the air. On New Year’s Eve 1958, they watched fireworks over the Las Vegas Strip from 3,000 feet.

How Did They Keep the Engine Running?

John Cook’s mechanical skill was the linchpin of the entire flight. The Continental O-300 was never designed for continuous operation, yet Cook kept it running for more than 1,500 consecutive hours.

His methods were extraordinary:

He added oil through the filler cap while the engine was running, climbing halfway out the right window into a 100-mph slipstream
He changed spark plugs in flight, pulling one plug at a time, replacing it, and moving to the next cylinder — all while the engine continued turning
When the generator failed around week three, Cook jury-rigged a repair using parts they had onboard, restoring electrical power for the radio, lights, and ground crew communications

What Did the Flight Achieve?

They departed McCarran Field on December 4, 1958, and landed at the same field on February 7, 1959. The final numbers:

64 days, 22 hours, 19 minutes, and 5 seconds aloft
More than 150,000 miles flown
The equivalent of six circumnavigations of the Earth, all within sight of Las Vegas
Over 1,500 hours of continuous engine operation

When they touched down in front of a crowd, Timm and Cook could barely climb out of the airplane. Their legs had effectively forgotten how to support their weight after more than two months of sitting.

Why Has No One Broken the Record?

The record has stood for more than 67 years. The Cessna 172 is mechanically capable of repeating the feat — it remains one of the most reliable airframes ever built. The barrier is human endurance and regulatory reality.

The FAA has made clear it would not sanction another attempt under similar conditions. The low-altitude refueling runs alone would be disqualifying under modern safety standards. And no pilot since has been willing to endure the physical and psychological punishment that Timm and Cook absorbed for over nine weeks.

What Happened to the Airplane?

The Hacienda Skylark hung from the ceiling of the Hacienda Hotel for decades, a trophy of the casino’s most successful publicity stunt. When the Hacienda was demolished in 1996 to make way for new development on the Strip, the airplane was preserved. It was displayed at the McCarran aviation museum, a artifact of both Las Vegas history and general aviation achievement.

Key Takeaways

Bob Timm and John Cook flew a Cessna 172 for 64 days straight in 1958–59, setting a world endurance record that has never been broken.
In-flight maintenance was essential: Cook changed spark plugs, added oil, and repaired the generator — all while the engine ran continuously for over 1,500 hours.
Refueling was done from a moving truck on desert roads, with the Cessna flying at 20 feet and highway speed.
The record has stood for 67+ years, outlasting the Space Shuttle program, and the FAA would not permit a repeat under modern regulations.
The airplane survived the demolition of its sponsor’s casino and was preserved as a museum piece.