Piper PA-39 Twin Comanche

The mother-daughter team of Texans Marion P. Jayne and Patricia Jayne Keefer won the 1994 Round the World Air Race in the Piper Twin Comanche!

Piper Aircraft’s most successful series of single-engine PA24 and twin-engine PA30/39 aircraft were the all-metal Comanche models. Piper built about 7,000 between 1958 and 1972. During training for single-engine operations, several fatal accidents occurred in the early models due to precise handling and rapid stall characteristics. Piper altered the design, and the FAA changed its training requirements which led to a much better safety record.

HISTORY OF THIS AIRCRAFT

This aircraft was purchased by Marion and George Jayne for their family equestrian business in 1970. ATP pilot Marion P. Jayne (1926-1996) won her first international race from Ohio to Nicaragua in 1971. She holds the record for the most cross-country speed air race victories. She was inducted into the WAI Pioneer Hall of Fame in 2000 and was named a 100 Aviation Hero at the First Century of Flight Kitty Hawk Celebration in 2003 along with the Wright Brothers, Charles Lindbergh, Amelia Earhart and other legendary aviators.

In 1994, the mother-daughter team of Texans Marion P. Jayne and Patricia Jayne Keefer won FAI Gold Medals for the longest race in history flying this plane. The race covered 21,000 miles around in the world during 12 days over a 24-day period. Marion and Nancy Jayne Palozola were the first mother-daughter team race around the world in 1992 and earned second place.

This plane is the only US aircraft and the only twin-engine plane to have raced in two around-the-world competitions. The plane was flown on 5 of 7 continents. The custom paint scheme was designed by Marion and enhanced by Pat when it was repainted in 2008. A stock model Twin Comanche has 4 fuel tanks holding 90 gallons. For the 1994 world race the plane had 11 tanks holding 252 gallons.

TEXAS CONNECTION

Roanoke, Texas was the launching airport for the trips to the start locations for both world races. Patricia Jayne “Pat” Keefer and husband Ken Keefer donated the plane to LSFM in 2021. Their donation honors the legacy of Marion P. Jayne and supports STEM programs at the museum. Pat Keefer is the former Chair/CEO of U.S. Air Race, Inc., a Texas-based non-profit organization dedicated to increasing pilot skills, promoting safe flying, and providing learn-to-fly scholarships.

Photo Credit: Dan O’Neil Photography

Manufacturer: Piper Aircraft
Country: United States
LENGTH: 25 feet 2 inches
WINGSPAN: 36 feet 10 inches
Ceiling: 20, 000 feet
Engine: 2 x 160 hp Lycoming IO320-B1A and LIO320-B1A
Max Speed: 205 mph
Range: 1,628 miles
Armament: None

Gallery

Upcoming Hangar Closure Notice

The Heritage Hangar will be closed
Sun., Nov. 2, 2025, for a private event.

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Upcoming Closure Notice

 

Lone Star Flight Museum will be closed

Friday, October 10, 2025, for a private event.

We’ll resume normal business hours on

Saturday, October 11 from 10am – 5pm.

Hangar Closure Notice

 

Our Heritage Hangar will be closed

Thursday, October 9, 2025 for private event preparation. The Waltrip Hangar and all other exhibits will remain open. Enjoy discounted admission all day!

Please note: The museum will be closed Friday, October 10 for the private event. 

Regular museum hours will resume on Saturday, October 11 from 10am – 5pm.

Heritage Hangar Closure – Thursday, September 18 at 1pm.

The Waltrip Hangar and all other exhibits remain open. The Heritage Hangar will reopen Friday during regular museum hours.

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Museum Closure

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Fri., November 28, 2025 (10AM – 5PM)

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Thurs., Nov 13 and Fri., Nov 14, 2025, in preparation for our JetSetters Ball – Destination: Paris!

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Come check out the reintroduction of our 2020 exhibit: Fight to the Finish! 

Museum Closure

 

The Museum will be closed from

Sat., Oct. 18 and Sun., Oct. 19, 2025 to participate in Wings Over Houston!

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We’ll resume normal museum hours on

Tues., Oct. 21 (10 a.m. – 5 p.m.)

Upcoming Closure Notice

 

The Lone Star Flight Museum will be closed

Saturday, October 4, 2025, for the 7th Annual Hangar Bash!

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Sun., Oct. 5 – Noon – 5PM.

Upcoming Closure Notice

 

Lone Star Flight Museum will be closed on

Friday and Saturday, September 12-13, 2025, for a private event.

We’ll reopen with normal hours on 

Sunday, September 14, 2025, from 12PM – 5PM.