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Gee Bee Model Z (autographed FDC by pilot Lowell Bayles) ~ 50% Off ~ Free Shipping

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  • 1931 FDC commemorating "American Legion Air Meet" signed in ink by participating pilot Lowell Bayles. Lowell Bayles would go onto to win the 1931 "Thompson Trophy Race" but would later be killed on December 5, 1931 in the Gee Bee Z while trying for a world speed record. Also in the frame piece is a Gee Bee Z serial data plate.
  • Gee Bee Z Serial Data Plate on the control panel.
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$397.50 (You save $397.50)
452 C
6.00 LBS
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Product Description

Frame Size: 21" x 23" ~ autographed FDC signed in ink by race pilot Lowell Bayles. Comes with COA.

Gee Bee Model Z "Super Sportster"

Suffering from the effects of the Great Depression, the Granville Brothers decided in July 1931 to build an aircraft to compete in that fall's Thompson Trophy competition at the National Air Races in Cleveland, Ohio. They hoped that a victory in the prestigious race would lead to additional orders for their line of sporting aircraft.

Constructed in less than five weeks at a cost of under $5,000 USD, the Gee Bee (for "Granville Brothers") Model Z, named City of Springfield, was a small, tubby airplane. It was essentially the smallest possible airframe constructed around the most powerful available engine, a supercharged Pratt & Whitney R-985 "Wasp Junior" radial engine, producing 535 horsepower (399 kW).

First flying on August 22, 1931, the Gee Bee Z quickly proved to be tricky to fly, but fulfilled every expectation with regards to its speed. Flown by pilot Lowell Bayles, the Gee Bee Z attained the speed of 267.342 miles per hour (430.245 km/h) at the National Air Races during the Shell Speed Dash qualifying on September 1, then went on to win the Goodyear Trophy race, run over a course of 50 miles (80 km), the next day at an average speed of 205 miles per hour (330 km/h). On the September 5, the aircraft's engineer, Bob Hall, flew the Gee Bee Z to victory in the General Tire and Rubber Trophy race, then won again the next day in a free-for-all event.

In the Thompson Trophy Race on September 7, Bayles was triumphant, winning with an average speed of 236.24 miles per hour (380.19 km/h), winning over competitors including Jimmy Doolittle, James "Jimmy" Wedell, Ben Howard, Dale Jackson, Bill Ong, Ira Eaker, and Hall, who finished fourth in a Gee Bee Model Y.

It was suspected that the Model Z's crash during a speed run in December 1931 was due to an unexpected failure of the gasoline tank cap, which may have come loose and passed through the windshield. A bullet-proof windscreen and internal fuel caps were part of the new design. Analysis of motion picture film of the event examined frame-by-frame, is inconclusive. Control surface flutter is a more likely cause. It is theorized that the gas cap struck the pilot and incapacitated him, causing a sudden upset in pitch that led to uncontrolled flutter in the right aileron which imparted undue stress on that wing, causing it to pitch up sharply and fail. In addition, tests of a reproduction aircraft have shown that the Gee Bee Z was susceptible to aerodynamic flutter at high speed. The 1932 R-1 and its sister ship, the R-2, were the successors of the previous year's Thompson Trophy-winning Model Z.Following the Thompson Trophy race, the Gee Bee Z was re-engined with a larger, 750-horsepower (560 kW) Wasp Senior radial, in preparation for an attempt at establishing a world speed record for landplanes at Wayne County Airport in Detroit, Michigan. Unofficially clocked at 314 miles per hour (505 km/h) on a trial run, it surpassed the previous record of 278 miles per hour (447 km/h) by attaining 281.75 miles per hour (453.43 km/h) on December 1, 1931, but the margin was too small for the record to be officially registered. A further record attempt on December 5, 1931, would end in tragedy, the aircraft suffering a wing failure and rolling into the ground, killing Bayles.

Film of the crash of the Gee Bee Z has become some of the most well known footage from the era of air racing. The crash also helped to establish the reputation of Gee Bee racing aircraft as killers. The Super Sportster design would be refined into the Gee Bee Model R for the 1932 air race season.

Two reproductions of the Gee Bee Z have been constructed. One, a faithful reproduction of the original aircraft, was constructed by Jeff Eicher and Kevin Kimball of Mount Dora, Florida, and is housed in the Fantasy of Flight museum in Lakeland, Florida. The other, constructed by Bill Turner in 1978, features extended wings and fuselage for better flight characteristics. It appeared in 1991 as both a static and flying prop in the Walt Disney feature film The Rocketeer; it is now on display at the Museum of Flight in Tukwila, Washington.

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