- Development and design
- Operational history
- Variants Impressed aircraft
- Specifications (SRE)
- See also
- Notes
- References
- External links
| name=Waco E series | image=Waco SRE N1252W Belvidere IL 01.08.10R edited-2.jpg | caption=Airworthy 1941-built Waco SRE at Poplar Grove Airport, near Belvidere, Illinois, in August 2010 }}{{Infobox Aircraft Type | type=Four-seat cabin biplane | national origin=United States | manufacturer=Waco Aircraft Company | designer= | first flight=1939 | introduced=1940 | retired= | status=some still flying in 2011 | primary user=private owner pilots | more users= | produced=1939–1942 | number built=30 [1] | program cost= | unit cost=$18,000 (SRE) | developed from=Waco C series[2] | variants with their own articles=
}} |
The Waco E series is a small family of American-built cabin biplanes built between 1939 and 1942, which differed primarily by engine installation. Development and designThe 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 {{convert|285|to|450|hp|kW|0|abbr=on}}, giving the E series a high cruising speed for the period of up to {{convert|195|mph|km/h|0|abbr=on}}.[4] Production ceased in 1942. Note: the Waco GXE of 1929/30 was an unrelated biplane design with non-staggered wings Operational historyThe 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(Source : Aerofiles) - ARE Aristocrat
- {{convert|300|hp|kW|0|abbr=on}} Jacobs L-6 (4 built, one impressed as UC-72A)
- HRE Aristocrat
- {{convert|285|hp|kW|0|abbr=on}} Lycoming R-680 (5 built, 2 impressed as UC-72C)
- SRE Aristocrat
- {{convert|400|hp|kW|0|abbr=on}} Pratt & Whitney R-985 Wasp Junior SB-2 (21 built, 12 impressed as UC-72)
- WRE Aristocrat
- {{convert|420|hp|kW|0|abbr=on}} Wright R-975 - model offered to potential customers, but none built
Impressed aircraft{{main|Waco UC-72}}- UC-72
- 12 impressed Waco SRE for USAAF
- UC-72A
- One impressed Waco ARE
- UC-72C
- Two impressed Waco HRE
Specifications (SRE){{Aircraft specs
|ref=Simpson p. 576
|prime units?=imp
|genhide=
|crew=1 pilot
|capacity=3 passengers
|length m=
|length ft=27
|length in=10
|length note=
|span m=
|span ft=34
|span in=9
|span note=
|upper span m=
|upper span ft=
|upper span in=
|upper span note=
|lower span m=
|lower span ft=
|lower span in=
|lower span note=
|height m=
|height ft=8
|height in=8
|height note=
|wing area sqm=
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=2734
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=4200
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Pratt & Whitney R-985 SB-2
|eng1 type=nine-cylinder radial air-cooled piston
|eng1 kw=
|eng1 hp=400
|prop blade number=
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop note=
|perfhide=
|max speed kmh=
|max speed mph=202
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=195
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=57
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=1070
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=23500
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=1550
|climb rate note=
|time to altitude=
|lift to drag=
|wing loading kg/m2
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}
See also{{aircontent|
|related=
|similar aircraft=- Beech 17 Staggerwing
- Fairchild Model 45
- Howard DGA-15
- Spartan Executive
- Stinson Reliant
|lists=- List of aircraft of World War II
|see also=
}}Notes1. ^Aerofiles
2. ^Green p.306
3. ^Simpson p. 576
4. ^Simpson p. 576
5. ^Simpson p. 576
References{{refbegin}}- Green, William, The Aircraft of the World, 1965, MacDonald & Co (Publishers) Ltd, ISBN none
- Simpson, Rod, Airlife's World Aircraft, 2001, Airlife Publishing Ltd, {{ISBN|1-84037-115-3}}
{{refend}}External links{{commons category|Waco RE Series}}- Details and photographs of the Waco E series on Aerofiles
{{Waco aircraft}} 5 : Waco aircraft|United States civil utility aircraft 1930–1939|Sesquiplanes|Single-engined tractor aircraft|Aircraft first flown in 1939 |