Engineering:Waco D series

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Short description: Series of aircraft


The Waco D Series was a series of military biplanes created between 1934 and 1937 by the Waco Aircraft Company for export to countries other than the United States . The three letter designation indicated the engine, airframe, and series.[1] Armed versions had a -A suffix.[2]

Variants

CHD
Multipurpose military biplane with 250 hp (190 kW) Wright J-6-7 Whirlwind radial engine.
JHD-A
Powered by 365 hp (272 kW) Wright Whirlwind radial engine. 6 exported to Uruguay.[3]
S2HD
Multipurpose military export biplane with 450 hp (340 kW) Pratt & Whitney Wasp Junior SB radial engine. 1 exported to Cuba
S3HD
Multipurpose military biplane with 400 hp (300 kW) Pratt & Whitney Wasp Junior TB. 1 built.
S3HD-A
Armed variant of S3HD powered by Wasp Junior engine,[lower-alpha 1] one exported to Cuba.[3]
WHD
Multipurpose military biplane with 420 hp (310 kW) Wright J-6-9 Whirlwind engine. 5 built, including 4 exported to Nicaragua. Max speed: 191 mph, Cruise speed: 166 mph, Seats: 2[5]
CMD
Multipurpose military biplane with 250 hp (190 kW) Wright J-6-7 Whirlwind. None built.

Operators

 Cuba
 Uruguay
Six JHD-As purchased in 1938.[3]

Specifications (JHD-A)

Data from Jane's All the World's Aircraft 1938[7]

General characteristics

  • Crew: 2
  • Length: 25 ft 6 1⁄2 in (7.785 m)
  • Wingspan: 32 ft 8 5⁄8 in (9.973 m)
  • Height: 8 ft 11 1⁄2 in (2.731 m)
  • Wing area: 256.3 sq ft (23.81 m2)
  • Empty weight: 2,505 lb (1,136 kg)
  • Gross weight: 3,800 lb (1,724 kg)
  • Fuel capacity: 89 US gal (74 imp gal; 340 L)
  • Powerplant: 1 × Wright R-975-E2 9-cylinder air-cooled radial engine, 350 hp (260 kW)at sea level

Performance

  • Maximum speed: 170 mph (270 km/h, 150 kn) at sea level
  • Cruise speed: 155 mph (249 km/h, 135 kn)
  • Service ceiling: 15,500 ft (4,700 m)
  • Rate of climb: 1,100 ft/min (5.6 m/s)

Armament

  • Guns: 2× machine guns[3]

Notes

  1. ↑ Rated at 240 hp (180 kW) according to Robinson,[3] and at 320 hp (240 kW) according to Aerofiles,[4]

References

  1. ↑ "WACO D Series". http://aviadejavu.ru/Site/Crafts/Craft26723.htm. 
  2. ↑ "Waco D series / Waco CHD / Waco JHD / Waco S3HD / Waco WHD / Waco CMD / Waco S2HD Super Sport". http://all-aero.com/index.php/56-planes-v-w/15854-waco-d-series-waco-chd-waco-jhd-waco-s3hd-waco-whd-waco-cmd. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 Robinson 1988, p. 34.
  4. ↑ "Waco". Aerofiles. http://www.aerofiles.com/_waco.html. 
  5. ↑ "Waco D series / Waco CHD / Waco JHD / Waco S3HD / Waco WHD / Waco CMD / Waco S2HD Super Sport". http://all-aero.com/index.php/56-planes-v-w/15854-waco-d-series-waco-chd-waco-jhd-waco-s3hd-waco-whd-waco-cmd. 
  6. ↑ Hagedorn 1993, pp. 12–13.
  7. ↑ Grey & Bridgman 1938, pp. 309c–310c.
  • Grey, C. G.; Bridgman, Leonard, eds (1938). Jane's All the World's Aircraft 1938. London: Sampson Low, Marston & Company, Ltd.. 
  • Hagedorn, Daniel P. (1993). Central American and Caribbean Air Forces. Tonbridge, UK: Air-Britain (Historians) Ltd.. ISBN 0-85130-210-6. 
  • Robinson, Harry (July 1988). "Les WACO type D" (in fr). Le Fana de l'Aviation (224): 30–34. 

External links

Waco Coding System: [1]




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