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Stearman Aircraft

סדר הקרב · יצרני מטוסים ארצות הברית

Stearman Aircraft

Stearman Aircraft, Inc. · Stearman Aircraft Company · Stearman Division of Boeing

A Kansas designer who co-founded Travel Air built his own biplanes, sold out to Boeing’s empire and left his name on the trainer that taught a generation of American pilots.

1926מְבוּסָס
מוזג לתוך בואינג in 1941סטָטוּס
10מטוסים רשומים
צילום: אלן ווילסון / ויקימדיה קומונס (CC BY-SA 2.0)
מְדִינָהאַרצוֹת הַבְּרִיתמְבוּסָס1926-12-10מייסדיםLloyd StearmanמַטֶהWichita, Kansasסטָטוּסמוזג לתוך בואינג in 1941
הסיפור

Stearman Aircraft: the company and the aircraft that made its name

Travel Air, then a company of his own

Lloyd Stearman was born in Wellsford, Kansas, in 1898, studied engineering and architecture at Kansas State College, and learned to fly Curtiss seaplanes in the Naval Reserve in 1918. After working as a mechanic for Matty Laird, he teamed up with Walter Beech and Clyde Cessna in 1925 to form the Travel Air Manufacturing Company in Wichita, a partnership of three future aviation names. In 1926 he left to build his own aeroplanes, and on 10 December 1926 Stearman Aircraft was chartered, with fabrication at Venice, California, and final assembly at Clover Field.

Mail pits and Wichita

Only four C1 and C2 biplanes had been built in California when Wichita money brought the company home in 1927. Walter P. Innes Jr. and his associates raised new capital, and the C3, a three-seat commercial biplane, became the firm’s first success, with 179 built. A mail version with the front cockpit turned into a cargo hold flew airmail routes in 1928, and the M-2 Speedmail went to Varney Air Lines in January 1929. From one aircraft in 1927, Stearman built 130 in 1928, and at the 1929 peak employed 250 people with ten distributors nationwide.

Swallowed by an empire

In July 1929 Stearman swapped 375 of its shares for 100 of the United Aircraft and Transport Corporation, the combine that William Boeing and Frederick Rentschler were assembling out of Boeing, Pratt & Whitney, Sikorsky, Chance Vought and airlines. Lloyd Stearman was moved to research and resigned in July 1931; he went on to help buy Lockheed in 1932. The Depression cut Stearman’s workforce to 25 by 1932, and only parts work for the Boeing 247 kept it alive. When the 1934 Air Mail Act broke up the combine, Stearman became a division of Boeing.

Kaydet: ten thousand trainers

Salvation was a trainer. The Model 70 flew on 1 January 1934, the Navy ordered 41 of the developed Model 73 as the NS-1, and the refined Model 75 won orders from the Army Air Corps as the PT-13. Then the war orders poured in: from 600 staff in autumn 1939 the workforce passed 5,000 by June 1941, and the factory was turning out five trainers a day. Officially called the Kaydet but universally known simply as the Stearman, it trained the Tuskegee Airmen and the naval aviator George H. W. Bush. At least 10,626 were built, counting Models 70, 75 and 76; Boeing records give 10,346 primary trainers including spares.

From biplanes to the B-52

In September 1941 the Stearman name disappeared from the company, which became the Wichita Division of Boeing. The Wichita plant went on to build 1,769 B-29s, 1,390 B-47s and 467 B-52s; counting everything from 1927 to 1962, the works produced more than 14,500 aircraft. The biplanes had a second life: in 1948 more than 4,345 Stearmans were flying as crop-dusters, and they became popular for aerobatics and wing-walking at air shows. In 2005 Boeing sold the civil side of the old Wichita works to become Spirit AeroSystems, and bought Spirit back in 2025.

A Kansas designer who co-founded Travel Air built his own biplanes, sold out to Boeing’s empire and left his name on the trainer that taught a generation of American pilots.Stearman Aircraft · verified 2026-10-03

במבט חטוף

Stearman Aircraft in numbers

החברה

בקיצור
Founded 1926

  • Chartered 10 December 1926 in California; moved to Wichita in 1927
  • Part of United Aircraft and Transport Corporation from 1929
  • Division of Boeing from 1934
  • Renamed Wichita Division, Boeing Aircraft Company, September 1941

הֲפָקָה

ידוע בעיקר בזכות
Model 75 Kaydet

  • C3 commercial biplane, 179 built
  • Model 75 Kaydet: at least 10,626 built including Models 70 and 76
  • 247 original Stearman biplanes before the trainers, per Boeing records
  • More than 14,500 aircraft built at Wichita 1927–1962, including B-29s, B-47s and B-52s

הַיוֹם

עַכשָׁיו
Part of Boeing’s lineage

  • Wichita civil operations became Spirit AeroSystems in 2005
  • Boeing reacquired Spirit in 2025
  • Postwar Stearmans became crop-dusters, sport and air-show aircraft

המספרים

Model 75 family built
at least 10,626
Primary trainers built for the US military
10,346 (including spares)
Aircraft built at Wichita 1927–1962
more than 14,500
עובדים
2501929
עובדים
251932
עובדים
more than 5,0001941
Factory floor area
300,000 sq ft1941
Stearmans in agricultural use
more than 4,3451948

המטוס

Every notable Stearman Aircraft aircraft

כְּלִי טַיִס תַפְקִיד טיסה ראשונה בנוי סטָטוּס פֶּתֶק
Stearman C1 and C2 Commercial biplane 1927 5 בְּדִימוּס One C1 and four C2, built in California
Stearman C3 Three-seat commercial biplane 1927 179 בְּדִימוּס First Stearman with a type certificate; C3MB mail version
Stearman M-2 Speedmail Mailplane 1929 7 בְּדִימוּס First delivered to Varney Air Lines, January 1929
Stearman Model 4 Commercial biplane 1930 41 בְּדִימוּס
Stearman Model 6 Cloudboy Trainer biplane 1931 7 בְּדִימוּס
Stearman Model 73 (NS-1) Navy trainer 78 בְּדִימוּס
Stearman Model 75 Kaydet (PT-13, PT-17, N2S) מאמן ראשי 1934 at least 10,626 בְּדִימוּס First flight date is the Model 70 prototype; total includes Models 70, 75 and 76; many later flown privately
Stearman Model 85 (XOSS-1) Observation floatplane 1938 1 בְּדִימוּס
Stearman X-100 Twin-engine attack prototype 1938 1 בְּדִימוּס
Stearman X-90 (XBT-17) Monoplane basic trainer 1940 1 בְּדִימוּס

מקומות, אנשים, רשומות

Where Stearman Aircraft built, who led it, what it achieved

מפעלים

  • Venice, California · Venice and Clover Field, California — 1926–1927; final assembly at Clover Field
  • Wichita Municipal Airport plant · Wichita, Kansas — From late 1930; later Boeing Wichita and Spirit AeroSystems

אֲנָשִׁים

  • Lloyd Stearman · founder (1898–1975) — Co-founder of Travel Air; later president of Lockheed; National Aviation Hall of Fame 1989
  • Walter P. Innes Jr. · investor, president from December 1930
  • Mac Short · vice president and chief engineer
  • Frederick Rentschler · chairman after the 1929 merger
  • Julius Schaefer · president from 1933

שיאים וראשונות

  • Model 75 trained the Tuskegee Airmen and George H. W. Bush
  • Delivered the 1,000th trainer to the Army on 15 March 1941 and the 10,000th trainer in July 1944

ציר זמן

Stearman Aircraft, year by year

1926

Stearman Aircraft chartered in California

1927

Company moves to Wichita; C3 enters production

1928

130 aircraft built

1929

Joins United Aircraft and Transport Corporation

1931

Lloyd Stearman resigns; Northrop merged into Stearman

1932

Workforce falls to 25

1934

Model 70 trainer prototype first flight

1934

Stearman becomes a division of Boeing

1935

Model X75 demonstrated; first Army PT-13 order

1941

1,000th trainer delivered to the Army

1941

Renamed Wichita Division, Boeing Aircraft Company

1944

10,000th trainer completed

2005

Wichita civil operations sold, forming Spirit AeroSystems

2025

Boeing reacquires Spirit AeroSystems



שאלות ותשובות

Everything people ask about Stearman Aircraft

How many Stearman biplanes were built?
At least 10,626 of the Model 70, 75 and 76 family were built in the 1930s and 1940s. Boeing records list 10,346 primary trainers including spares.
Is a Stearman a Boeing?
Stearman became part of the United Aircraft and Transport Corporation in 1929 and a division of Boeing in 1934, so the wartime trainers are often called Boeing-Stearman. In September 1941 the company was renamed Boeing’s Wichita Division.
Why are Stearmans used as crop-dusters?
After the Second World War thousands of surplus trainers were cheap and rugged; with a hopper in the front cockpit they made good agricultural aircraft. In 1948 more than 4,345 were in agricultural use.
Who was Lloyd Stearman?
A Kansas-born designer who co-founded Travel Air with Walter Beech and Clyde Cessna in 1925, founded Stearman Aircraft in 1926 and later became president of Lockheed.



מקורות וקריאה נוספת

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אומת בתאריך 2026-10-03.