Rans S-21 Outbound

S-21 Outbound
Role Homebuilt aircraft
Light-sport aircraft
National origin United States
Manufacturer Rans Designs
Designer Randy Schlitter
First flight 15 December 2017
Status In production (2018)

The Rans S-21 Outbound is an American STOL homebuilt aircraft that was designed by Randy Schlitter and is produced by Rans Designs of Hays, Kansas. It was introduced at AirVenture in 2016. The aircraft is supplied as a quick-build kit for amateur construction or ready-to-fly.[1][2]

Design and development

The S-21 Outbound features a strut-braced high-wing, a two-seats-in-side-by-side configuration enclosed cabin accessed via doors, fixed tricycle landing gear or optionally conventional landing gear and a single engine in tractor configuration.[1]

The aircraft is made from aluminum sheet, with both leading edge and trailing edge extruded spars. The sheet metal parts employ final-size matched holes to reduce builder errors and speed construction. Its 28 ft (8.5 m) span wing mounts flaps and has a wing area of 141 sq ft (13.1 m2). The standard engine used is the 180 hp (134 kW) Continental Titan X-340 powerplant. Tundra tires up to 26 in (66 cm) may be fitted.[1][3]

The aircraft has a typical empty weight of 985 lb (447 kg) and a gross weight of 1,800 lb (820 kg), giving a useful load of 815 lb (370 kg). With full fuel of 31.75 U.S. gallons (120.2 L; 26.44 imp gal) the payload for the crew/pilot, passengers and baggage is 625 lb (283 kg).[1][3]

The S-21 competes with the CubCrafters Carbon Cub EX and the American Legend Super Legend HP in the kit aircraft market.[4]

The prototype, registered N215RD, first flew on 17 December 2017, it gained special light-sport aircraft approval in March 2018 with the Rotax 912 ULS, Rotax 912 iS, Lycoming YO-233 and Titan OX-340 engines.[5][6]

Specifications (S-21 Outbound)

Data from Manufacturer and AVweb[1][3]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 28 ft (8.5 m)
  • Wing area: 141 sq ft (13.1 m2)
  • Aspect ratio: 5.53:1
  • Empty weight: 985 lb (447 kg)
  • Gross weight: 1,800 lb (816 kg)
  • Fuel capacity: 31.75 U.S. gallons (120.2 L; 26.44 imp gal)
  • Powerplant: 1 × Continental X-340 Titan four cylinder, air-cooled, four stroke aircraft engine, 180 hp (130 kW)

Performance

  • Maximum speed: 150 mph (241 km/h; 130 kn)
  • Stall speed: 38 mph (61 km/h; 33 kn)
  • Never exceed speed: 215 mph (346 km/h; 187 kn)
  • Range: 527 mi (458 nmi; 848 km)
  • Endurance: 3.9 hours
  • Service ceiling: 14,500 ft (4,400 m)
  • g limits: +6/-4
  • Maximum glide ratio: 11.1
  • Wing loading: 12.76 lb/sq ft (62.3 kg/m2)
  • Power/mass: 10 lb/hp

References

  1. 1 2 3 4 5 "Rans Debuts All-Metal Design". AVweb. Retrieved 25 July 2016.
  2. ↑ Rans Designs. "Rans S-21 Outbound". www.rans.com. Retrieved 26 May 2018.
  3. 1 2 3 Rans Designs. "S-21 Performance and Specs" (PDF). Retrieved 25 July 2016.
  4. ↑ "OSHblog: Stirring The AirVenture Tea Leaves". AVweb. Retrieved 25 July 2016.
  5. ↑ "General Aviation News". Air Britain Aviation World. Air-Britain. 2018. p. 114. ISSN 1742-996X.
  6. ↑ Federal Aviation Administration (23 May 2018). "SLSA Make/Model Directory". Retrieved 26 May 2018.
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