Sonex Aircraft Onex
| Sonex Aircraft Onex | |
|---|---|
| |
| Prototype of Sonex Aircraft Onex | |
| Role | Homebuilt aircraft |
| Manufacturer | Sonex Aircraft |
| Designer | John Monnett
|
| First flight | 27 January 2011 |
| Status | In production |
| Number built | 53 incl 2 prototypes as of March 2019[1] |
| Developed from | Sonex Aircraft Sonex |
The Onex (pronounced "One-X"low-wing aircraft first flown on 27 January 2011[3][4] and currently being produced by Sonex Aircraft as a kit for amateur construction.[5][6]
Design and development
The Onex was designed to be economical, have
aerobatic capabilities and folding wings, allowing storage in a standard 7 ft (2.1 m) high by 8 ft (2.4 m) wide residential garage.[4] The aircraft has been designed to standard light aircraft FAR-23 static load requirements with the wings supporting more than 10,000 pounds in sandbags during the tests.[7] Intended for the US experimental home-built and light-sport aircraft categories, in 2012 the company estimated the total price to purchase and build the aircraft to be around US$25,299, making it the least expensive of their kits.[8] The FAA's National Kit Evaluation Team has approved construction checklists demonstrating compliance with the homebuilt requirement that the "major portion", or 51% of the aircraft, is completed by the builder, not the manufacturer. This also allows the owner to seek commercial help with construction.[6][9]
The first prototype was flown with
AeroVee Volkswagen air-cooled engine.[4]
In a February 2, 2011
flaps and found the 45° flap position to be very effective.[7]
In a progress update on January 26, 2012, Sonex stated that more than 50 kits had been shipped before the new year, and some were nearing completion.[5]
Specifications (Onex with regular span wing)
Data from manufacturer’s website[5]
General characteristics
- Crew: one
- Length: 16 ft 5 in (5.0 m)
- Wingspan: 20 ft 9 in (5.72 m)
- Wing area: 84.4 sq ft (7.84 m2)
- NACA 64-415 [7]
- Empty weight: 600 lb (272 kg)
- Gross weight: 950 lb (431 kg)
- Fuel capacity: 15 US gallons (56.8 liters)
- Powerplant: 1 × four-stroke, Volkswagen air-cooled engine, 80 hp (60 kW)
Performance
- Cruise speed: 155 mph (249 km/h, 135 kn) at 8,000 ft (2,400 m).
- Stall speed: 45 mph (72 km/h, 39 kn)
- Never exceed speed: 216 mph (348 km/h, 188 kn)
- Range: 535 mi (861 km, 465 nmi)
- Service ceiling: 16,000 ft (4,900 m) (calculated service ceiling)
- g limits: +6/-3 at gross weight
- Rate of climb: 700 ft/min (3.6 m/s) to 900 ft/min (4.6 m/s)
- Lift-to-drag: 10:1
- Power/mass: 11.875 lb/hp (7.223 kg/kW)
See also
Related development
Aircraft of comparable role, configuration, and era
References
- ^ "Onex Completions". Sonex Aircraft. December 12, 2017. Retrieved March 2, 2019.
- ^ "Sonex Aircraft Hornet's Nest Research and Development". Archived from the original on May 16, 2011. Retrieved January 23, 2011.
- ^ a b "Onex Single-Place, Folding-Wing, Aerobatic Sport Aircraft Makes First Flight". Retrieved January 30, 2011.
- ^ a b c Niles, Russ (January 2011). "Sonex Flies Folding Wing Onex". AvWeb. Retrieved January 31, 2011.
- ^ a b c d "Onex Progress Update: January 26, 2012". Sonex Aircraft Onex. Archived from the original on January 29, 2012. Retrieved January 27, 2012.
- ^ ISSN 1368-485X
- ^ a b c "Webinar - Onex: A New Kit Aircraft from Sonex". Sonex Aircraft Onex. Retrieved February 4, 2011.
- ^ "Sonex Aircraft Pricing". Archived from the original on April 15, 2012. Retrieved February 17, 2012.
- ^ Mitchell, Mike. "Onex Single Place Folding Wing Sport Aircraft Receives FAA NKET Approval". AvStop.com. Retrieved February 19, 2012.
External links
Wikimedia Commons has media related to Sonex Aircraft Onex.