The Travel Air 2000/3000/4000 (originally, the Model A, Model B and Model BH) and later marketed as a Curtiss-Wright product under the names CW-14, Speedwing, Sportsman and Osprey), were aircraft produced in the United States in the late 1920s by the Travel Air Manufacturing Company. Travel Air produced more aircraft during the period from 1924-1929 than any other manufacturer.
Following Travel Air Manufacturing Company purchase in August 1929 by Curtiss-Wright, the Model 4000 continued in production into the early 1930s as the CW-14, and the range was expanded to include a military derivative dubbed the Osprey. This was fitted with bomb racks, a fixed, forward-firing machine gun, and a trainable tail gun. These aircraft were supplied to Bolivia and used during the Gran Chaco War, which eventually led to Curtiss-Wright's prosecution for supplying these aircraft in violation of a U.S. arms embargo.
Model 4000 Variations:
A original wing with "elephant-ear" ailerons
A Axelson engine
B "standard wing" with Frise-type ailerons and three fuel tanks
C Curtiss engine
D "speedwing"
E revised "standard wing" with a single fuel tank
K Kinner engine
L Lycoming engine