The Gee Bee Model R, the Granville Brothers of Springfield, and the Barrel-Shaped Racer That Won the Thompson Trophy and Killed Almost Everyone Who Flew It After

On September 3, 1932, Jimmy Doolittle flew the Gee Bee Model R-One to an average speed of 252 miles per hour around the closed-course pylon circuit at Cleveland Municipal Airport, winning the Thompson Trophy at the National Air Races. He immediately retired from racing. The airplane he flew was the fastest closed-course pylon racer of its era and one of the most lethal aircraft ever to win a major competition.

Who Were the Granville Brothers?

The Granville Brothers Aircraft Company set up operations at Springfield Airport in Massachusetts in 1925. Five brothers - Zantford (“Granny”), Tom, Bob, Mark, and Edward Granville - built their first original design in 1929, a modest sportplane called the Model A. None of them held formal engineering degrees. What they had instead was an intuitive mechanical sense for what made machines go fast and what held them back.

By 1931, they were aiming at something far more ambitious.

What Was the Thompson Trophy?

The Thompson Trophy was the crown jewel of the National Air Races - a closed-course pylon event run at Cleveland Municipal Airport. Ten laps around a fifty-mile circuit, minimum altitude one hundred feet, no restraint. Whoever flew the fastest airplane with the most nerve took home the trophy, a purse that could carry a struggling company for months, and a name in the history books.

In the Depression, all three mattered.

The Granvilles studied the competition and concluded the rest of the field was approaching the problem from the wrong direction. Other designers were building fast airplanes and trying to make them faster. The Granvilles decided to start from the other end: find the minimum possible airframe and wrap it around the maximum possible engine. Every pound of structure, every square foot of wing surface, every inch of fuselage that didn’t directly contribute to speed was something they were prepared to eliminate.

What the Gee Bee Model R Actually Was

The result was the Model R, built in two versions: the R-One and the R-Two. The R-One was the faster aircraft.

Up front sat a Pratt and Whitney Wasp Senior radial engine producing between 800 and 900 horsepower depending on configuration. Behind it, the fuselage tapered quickly to almost nothing - roughly seventeen feet of total length. The wing was short and unswept, designed to do exactly what was required and nothing else. Fixed landing gear with wheel pants nearly as large as the fuselage sections they enclosed. The cockpit was positioned so far aft that the pilot sat nearly over the vertical stabilizer, staring down the barrel of an engine that wanted to go faster than the airframe around it had any right to go.

The finished aircraft wore a red and white paint scheme that made it look, depending on your angle, either like a dart or something that had rolled off a county fair ride.

From the outside, other pilots called it radical, impressive, and unsettling.

From the inside, the words were different.

Why the Gee Bee Was So Dangerous

The Gee Bee R-One was not merely demanding. A demanding airplane punishes sloppy technique. An unforgiving airplane does not give a pilot time to understand what went wrong.

The core problem was geometry. The short fuselage created what engineers call a short-coupled design: the tail surfaces sat very close to the aircraft’s center of gravity, making the moment arm - the leverage the tail had over pitch - extremely short. In practical terms, a quarter inch of elevator input produced a reaction that could startle an experienced pilot. Overcorrect, and the airplane could be inverted before the correction registered consciously.

The torque from that radial engine on takeoff wanted to rotate the aircraft hard to the left with enough authority to flip it if the pilot was not smooth and aggressive on the rudder at exactly the right instant. At speed, the R-One demanded constant, precise, active attention. There was no margin for distraction, no tolerance for a bad day, and no second chance when the edge of the envelope was crossed.

Several pilots learned that at a cost they could not pay back.

Why Doolittle Was the Right Pilot for the Gee Bee

When the question became who would fly the R-One at Cleveland in 1932, the answer was Jimmy Doolittle - a name that would appear again over Tokyo in 1942, but who in September 1932 was already one of the most complete aviators alive.

Doolittle held a doctorate in aeronautical engineering from MIT. He had won the Schneider Trophy seaplane race in 1925, setting world speed records over water. He had performed the first outside loop ever recorded. And in 1929, flying from Mitchell Field in New York in a Consolidated biplane with opaque panels covering the cockpit, he completed the first fully instrument-only flight in history - taking off, flying a precise course, and landing safely without any visual reference to the outside world. That single flight built the conceptual foundation for every instrument rating ever earned since.

Doolittle was not a thrill seeker. He was a student of risk: he measured it carefully, and when the numbers came back acceptable, he committed completely.

He knew exactly what the Gee Bee was before he ever sat in it. In the weeks before the race, he familiarized himself with the R-One methodically - taxiing, short flights, learning its tendencies before asking anything more of it. The airplane didn’t want passengers.

The 1932 Thompson Trophy Race

On September 3, 1932, Doolittle flew ten laps of the fifty-mile course at Cleveland. The R-One carved hard around each pylon at low altitude. Spectators crowded to the fence line - a hundred thousand of them - close enough to feel the pressure wave and smell the exhaust.

He averaged 252 miles per hour around the course. For reference, the Ford Tri-Motor - the airliner that had been hauling passengers around the country just a few years earlier - cruised at roughly 100 miles per hour. Doolittle flew two and a half times that speed, a hundred feet above the ground, around pylons.

He won the Thompson Trophy. Then he announced his retirement from racing.

Why Doolittle Quit After Winning

Doolittle said publicly that the risks were no longer proportionate to the reward. He had a family. He had a future in aviation he was not willing to trade for another lap around a pylon at Cleveland. He had flown the fastest closed-course lap in history and knew precisely how fine the margin had been.

That decision has sometimes been read as fear. It was not. It was judgment, and there is a meaningful difference.

The most capable racing pilot of his generation - having just won the most significant pylon event in the country in the most lethal airplane on the field - looked at the margin he had worked within and decided it was not one he intended to revisit. He won everything available. He left on his own terms.

What Happened to the Gee Bee After Doolittle Walked Away

The Gee Bee did not retire with him.

Over the following years, various pilots flew the R-One and related Granville designs. Russell Boardman, a respected pilot who had held a nonstop distance record, was killed in 1933 in another Granville aircraft. The R-One was damaged in a landing accident, rebuilt, and modified - each change nudging an already narrow flight envelope in ways that were not always fully understood. The R-Two was destroyed in a crash at the 1933 National Air Races.

The Granville Brothers company was deteriorating. The Depression had eliminated what little commercial market existed for purpose-built racing aircraft. Legal exposure from the accidents accumulated. The military contracts the brothers had hoped their Thompson Trophy victories would attract never materialized.

Zantford “Granny” Granville - the eldest of the five brothers, the one who had conceived the whole enterprise from a drafty hangar in Massachusetts - died in a takeoff accident near Spartanburg, South Carolina in the spring of 1934. He was 32 years old.

The Legacy of the Gee Bee Model R

The Granvilles built something genuinely revolutionary. The Gee Bee Model R proved what was possible when the relationship between power and speed was pushed to its outer limit, and it proved it in front of a hundred thousand people who went home and told the story for the rest of their lives.

But the economic math of the Depression and the mechanical demands of an airplane that asked more than most pilots could reliably deliver caught up with the company before it could build anything safer. There are versions of this history where the Granville Brothers survive, secure a government contract, and live to refine what they started. That version did not happen.

Flying replicas of the Gee Bee R-One and R-Two exist today, built by people who studied the original engineering carefully and incorporated enough modern refinement to give a pilot a realistic chance. When one rolls out at a fly-in, conversations stop mid-sentence. Even people who cannot identify the aircraft by name recognize they are looking at something that belongs to a specific and unrepeatable moment in time.

That moment was aviation’s Golden Age - genuinely golden, but mixed with something harder. Many capable pilots died on a frontier that had no survival manual. The space between brilliant and safe is where the history of the Gee Bee becomes difficult to look at directly.

Doolittle understood that space. He measured it, crossed it once, won everything worth winning, and declined to press further. The real story inside the story of the Gee Bee Model R-One may not be the record or the trophy. It may be the decision to stop.

Key Takeaways

The Gee Bee Model R-One was built on a single design principle: the minimum possible airframe around the maximum possible engine, stripping everything that didn’t directly contribute to speed.
Its short-coupled fuselage made it extraordinarily sensitive - a quarter inch of elevator input could produce a violent pitch response, and the torque on takeoff could flip the aircraft if the pilot wasn’t precise.
Jimmy Doolittle averaged 252 mph around the Thompson Trophy course on September 3, 1932 - two and a half times the cruising speed of the airliners of the day.
Doolittle retired from racing immediately after winning, concluding that the margins no longer justified the risk. The pilots who flew the Gee Bee after him fared far worse.
Granny Granville, the eldest of the five brothers who built the airplane, died in a crash near Spartanburg, South Carolina in 1934 at age 32, before the company could recover from the Depression or the mounting legal exposure from its accidents.