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]
Unit cost
$18,000 (SRE)
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). [4] Production ceased in 1942. Note: the Waco GXE of 1929/30 was an unrelated biplane design with non-staggered wings

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. [5]

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 : Aerofiles)

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 Simpson p. 576

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

Related lists

Notes

  1. Aerofiles
  2. Green p.306
  3. Simpson p. 576
  4. Simpson p. 576
  5. Simpson p. 576

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References