Waco 9

Waco · United States · first flew 1925 · light aircraft

The Waco 9 was a popular American three-seat open biplane of the mid-1920s, powered by the widely available Curtiss OX-5 engine and used extensively for barnstorming, private flying, and early commercial charter work. Some 270 were built, making it one of Waco's most successful early types.

Recognition (WEFT)

W — WingsLow-mounted, straight
E — Engines1 × piston, nose-mounted
F — FuselageWelded steel tube fuselage with fabric covering
T — TailConventional

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A classic 1920s American biplane with equal-span wings, strut-and-wire bracing, a prominent water-cooled inline engine, and an open cockpit arrangement seating one pilot forward and two passengers aft.

Specifications

Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.

History

Introduced in 1925, the Waco 9 capitalised on the abundance of cheap surplus OX-5 engines available after World War I. Its welded steel tube fuselage gave it durability above typical wood-and-fabric contemporaries. The type helped establish the Weaver Aircraft Company (Waco) as a leading manufacturer of light biplanes in the 1920s and formed the foundation for a long line of Waco designs.

Variants

Subsequent Waco models (GXE, INF, etc.) offered different engines; the Model 9 specifically refers to the OX-5-powered version.

Where you'll see it

Widely used by private owners, barnstormers, and small commercial operators across the United States in the late 1920s and early 1930s.

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