Waco E series

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Waco E series
Waco SRE N1252W Belvidere IL 01.08.10R edited-2.jpg
Airworthy 1941-built Waco SRE at Poplar Grove Airport, near Belvidere, Illinois, in August 2010
RoleFour-seat cabin biplane
National originUnited States
Manufacturer Waco Aircraft Company
First flight1939
Introduction1940
Statussome still flying in 2011
Primary userprivate owner pilots
Produced1939–1942
Number built30 [1]
Developed from Waco C series [2]

The Waco E series is a small family of American-built cabin biplanes built between 1939 and 1942, which differed primarily by engine installation.

Contents

Development and design

The E series was the final development of the prewar Waco line of biplane designs. A full four-seater, it had the best performance of any of the Wacos. First flown in 1939, it had a much slimmer and more streamlined fuselage than earlier Waco C and S models and heavily staggered unequal-span parallel-chord wings with rounded tips. Wings were plywood-skinned, and also had wire cross-bracing between the wings in place of the solid struts used on previous models. [3]

Engines varied in power from 285 to 450 hp (213 to 336 kW), giving the E series a high cruising speed for the period of up to 195 mph (314 km/h). [3] Production ceased in 1942. [a]

Operational history

The E series was sold to wealthier private pilot owners who required the comfort of a fully enclosed cabin and a high cruising speed, combined with a longer range. Because of the type's good performance, 15 examples were impressed by the United States Army Air Forces during World War II for communications work as the UC-72. Several of the USAAF examples were returned to civilian use after the end of the war and five E series aircraft remained airworthy in 2001. [3]

Variants

WACO ARE WACOARE.jpg
WACO ARE
Waco SRE impressed as USAAF UC-72 USAAF Waco UC-72 42-38271 (previously) SRE NC20961, at Hammer Field front.jpg
Waco SRE impressed as USAAF UC-72

(Source: [1] )

ARE Aristocrat
300 hp (224 kW) Jacobs L-6 (4 built, one impressed as UC-72A)
HRE Aristocrat
285 hp (213 kW) Lycoming R-680 (5 built, 2 impressed as UC-72C)
SRE Aristocrat
400 hp (298 kW) Pratt & Whitney R-985 Wasp Junior SB-2 (21 built, 12 impressed as UC-72)
WRE Aristocrat
420 hp (313 kW) Wright R-975 - model offered to potential customers, but none built

Impressed aircraft

UC-72
12 impressed Waco SRE for USAAF
UC-72A
One impressed Waco ARE
UC-72C
Two impressed Waco HRE

Specifications (SRE)

Data from [3]

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

Related lists

References

Footnotes

  1. The Waco GXE of 1929/30 was an unrelated biplane design with non-staggered wings.

Notes

  1. 1 2 Eckland, K. O. (26 April 2009). "Waco". Aerofiles. Retrieved 27 July 2025.
  2. Green, William (1965). The Aircraft of The World. Macdonald & Co. (Publishers) Ltd. p. 306.
  3. 1 2 3 4 Simpson, Rod (2001). Airlife's World Aircraft. Airlife Publishing Ltd. p. 576. ISBN   1-84037-115-3.