Rans S-9 Chaos

The Rans S-9 Chaos is an American single-engined, tractor configuration, single-seat, mid-wing monoplane designed by Randy Schlitter for aerobatics and manufactured by Rans Inc. The Chaos is available in kit form for amateur construction.[1][2][3][4][5][6][7]

S-9 Chaos
Role Kit aircraft
National origin United States
Manufacturer Rans Inc
Designer Randy Schlitter
First flight 1986
Introduction 1986
Status In production
Produced 1986-2006, 2009-present
Number built 215 (2011)
Unit cost
US$10,900 (base price 2010) less engine and instruments
Variants Rans S-10 Sakota

Production of the S-9 was ended as part of Rans' reorganization of its product line on 1 June 2006, after having been available for 20 years, but the S-9 was reintroduced in about 2009 and is again available.[3][8][9]

Design and development

The S-9 Chaos was designed by Randy Schlitter in 1986 as an inexpensive aerobatic aircraft that will allow sportsman competition aerobatics to be flown or even advanced aerobatics if inverted fuel and oil systems are installed. The Chaos is also a capable cross country aircraft.[3]

Like many Rans models, the S-9 features a welded 4130 steel tube cockpit, with a bolted aluminum tube rear fuselage. All fuselage, wing and tail surfaces are covered in dope and fabric. The reported construction time is 500 man-hours.[1][2]

The Chaos has conventional landing gear. The basic engine is the Rotax 503 of 50 hp (37 kW), with the Rotax 582 of 64 hp (48 kW) and the Hirth 3701 of 100 hp (75 kW) available as options.[1][2][10]

The S-10 Sakota aerobatic two-seater was later developed from the S-9.[2]

Operational history

There were 215 S-9s built and flown by December 2011.[7]

In November 2010 there were 61 S-9s registered in the United States, along with three registered in Canada and two in the UK.[11][12][13] Another 23 were on the registers of European countries west of Russia.[14]

Specifications (S-9)

Data from Kitplanes and Aerocrafter[1][2]

General characteristics

  • Crew: One
  • Length: 15 ft 8 in (4.78 m)
  • Wingspan: 22 ft 0 in (6.71 m)
  • Wing area: 91.5 sq ft (8.50 m2)
  • Empty weight: 320 lb (145 kg)
  • Gross weight: 670 lb (304 kg)
  • Fuel capacity: 9 US gallons (34 litres)
  • Powerplant: 1 × Rotax 503 , 50 hp (37 kW)
  • Propellers: 2-bladed wooden

Performance

  • Cruise speed: 85 mph (137 km/h, 74 kn)
  • Stall speed: 33 mph (53 km/h, 29 kn)
  • Range: 210 mi (340 km, 180 nmi)
  • Service ceiling: 15,500 ft (4,700 m)
  • Rate of climb: 800 ft/min (4.1 m/s)

Avionics

  • none
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gollark: Some of them have cellular capability. They should just have a microcontroller and do BLE to a phone.
gollark: Because for some bad™ reason people keep putting application processors and fancy wireless hardware in them.
gollark: I'm pretty sure they still have a battery life on the order of days, and not years.
gollark: I see.

See also

Aircraft of comparable role, configuration and era

References
  1. Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 65. Primedia Publications. ISSN 0891-1851
  2. Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, page 239. BAI Communications. ISBN 0-9636409-4-1
  3. Rans (n.d.). "S-9 Chaos". Retrieved 24 November 2010.
  4. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 157. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  5. Taylor, John (ed): Jane's All The World's Aircraft 1987-1988, pages 698-699. Jane's Publishing Company, 1987. ISBN 0-7106-0850-0
  6. Taylor, John (ed): Jane's All The World's Aircraft 1988-1989, pages 592-594. Jane's Publishing Company, 1988. ISBN 0-7106-0867-5
  7. Vandermeullen, Richard: 2011 Kit Aircraft Buyer's Guide, Kitplanes, Volume 28, Number 12, December 2011, page 68. Belvoir Publications. ISSN 0891-1851
  8. Aero News Network (May 2006). "RANS: Light Sport Aircraft Are The Future". Retrieved 21 November 2010.
  9. Downey, Julia: 2008 Kit Aircraft Directory, Kitplanes, Volume 24, Number 12, December 2007, page 53. Primedia Publications. ISSN 0891-1851
  10. Rans (n.d.). "RANS S-9 Chaos". Retrieved 24 November 2010.
  11. Federal Aviation Administration (November 2010). "Make / Model Inquiry Results". Retrieved 24 November 2010.
  12. Transport Canada (November 2010). "Canadian Civil Aircraft Register". Archived from the original on 18 July 2011. Retrieved 24 November 2010.
  13. Civil Aviation Authority (United Kingdom) (November 2010). "GINFO Search Results Summary". Retrieved 24 November 2010.
  14. Partington, Dave (2010). European registers handbook 2010. Coulsdon, Surrey: Air Britain (Historians) Ltd. ISBN 978-0-7106-2916-6.
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