To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

From Wikipedia, the free encyclopedia

Cierva C.17 L'Aéronautique December,1928.jpg
Role Experimental autogyro
National origin United Kingdom
Manufacturer Cierva
Designer Juan de la Cierva
First flight 23 October 1928
Number built 2

The Cierva C.17 was a British experimental autogyro built by Cierva Autogiro Company in England in 1928, in association with Avro (which designated it their Type 612). It was an attempt to build upon the successful Cierva C.8 design using the smaller, more streamlined fuselage of an Avro Avian IIIA as a starting point. The type was found to be underpowered, and when the first attempt at fitting a more powerful engine still did not result in acceptable performance, the design was abandoned.[1]


Powered by a 67 kW (90 hp) A.D.C. Cirrus III piston engine.[2]
C.17 Mk II
Powered by an Avro Alpha radial piston engine.[2]


Cierva C.17 3-view drawing from L'Air June 1,1929
Cierva C.17 3-view drawing from L'Air June 1,1929

Data from Jane's all the World's Aircraft 1928,[3] British Aircraft Directory[4]

General characteristics

  • Crew: 1
  • Capacity: 1
  • Length: 28 ft 9 in (8.76 m)
  • Wingspan: 19 ft 9 in (6.02 m) auxiliary wing
  • Height: 11 ft 1 in (3.38 m) tail up
  • Empty weight: 970 lb (440 kg)
  • Gross weight: 1,455 lb (660 kg)
  • Fuel capacity: 17 imp gal (20 US gal; 77 l)
  • Powerplant: 1 × ADC Cirrus III 4-cylinder air-cooled in-line piston engine, 90 hp (67 kW)
  • Main rotor diameter: 33 ft 3.25 in (10.1410 m)
  • Main rotor area: 869 sq ft (80.7 m2)
  • Propellers: 2-bladed Avro wooden fixed pitch airscrew


  • Maximum speed: 90 mph (140 km/h, 78 kn)
  • Minimum speed: 25 mph (22 kn; 40 km/h)
  • Range: 210 mi (340 km, 180 nmi) at 70 mph (61 kn; 110 km/h)
  • Endurance: 3 hours
  • Rate of climb: 500 ft/min (2.5 m/s)
  • Power/mass: 18.2 lb/hp (11.13 kg/kW)

See also

Related development


  1. ^ Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 254.
  2. ^ a b World Aircraft Information Files. London: Bright Star Publishing. pp. File 891 Sheet 29.
  3. ^ Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 263c.
  4. ^ "C.17". 10 February 2007. Archived from the original on 10 February 2007. Retrieved 7 January 2018.CS1 maint: bot: original URL status unknown (link)

Media related to Cierva C.17 at Wikimedia Commons

This page was last edited on 12 October 2020, at 07:15
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.