Definition
The Rans S‑4 Coyote is a two‑seat, high‑wing, single‑engine kit aircraft marketed by Rans Inc. for construction by amateur builders and for operation under the United States Light‑Sport Aircraft (LSA) and Experimental‑Amateur‑Built categories.
Overview
Developed in the early 1990s, the S‑4 Coyote was introduced as a versatile, low‑cost aircraft suitable for sport flying, flight training, and recreational use. Production of the kit continued into the 2010s, with the aircraft gaining a reputation for relatively simple construction, forgiving flight characteristics, and economical operation. Builders assemble the airframe from supplied parts, after which the aircraft is inspected and issued an experimental airworthiness certificate or, when equipped with an approved engine and meeting LSA criteria, it may be flown as a Light‑Sport Aircraft.
Etymology / Origin
The designation “Rans” originates from the company name, an abbreviation of its founder Randy Schlitter’s name (“Randy’s”). The model code “S‑4” follows Rans’ internal sequence for its sporty line of aircraft, succeeding the single‑seat S‑3 and preceding later models such as the S‑5 and S‑7. The name “Coyote” is a nod to the North‑American coyote, evoking attributes of agility and ruggedness.
Characteristics
| Feature | Details |
|---|---|
| Configuration | High‑wing, strut‑braced monoplane; two seats side‑by‑side in an enclosed cabin. |
| Construction | Welded 4130 chromoly steel tube fuselage; fabric covering (Poly‑Fiber). Wing structure of aluminum ribs and spars with fabric covering. |
| Landing gear | Fixed tricycle gear (standard) or optional tail‑wheel configuration. |
| Powerplant options | Commonly equipped with Rotax 912UL (80 hp) or Rotax 912ULS (100 hp) four‑stroke engines; other 70–100 hp engines may be installed. |
| Performance (Rotax 912ULS) | • Maximum cruise speed: ≈ 110 kt (204 km/h) • Stall speed (flaps down): ≈ 38 kt (70 km/h) • Service ceiling: ≈ 13 000 ft (4 000 m) • Range: ≈ 500 nm (925 km) with standard fuel tanks |
| Weight | Empty weight: ≈ 620 lb (281 kg) Maximum take‑off weight: 1 320 lb (599 kg) in LSA configuration; higher (≈ 1 500 lb) for Experimental‑Amateur‑Built. |
| Control system | Conventional stick‑and‑rudder controls; optional dual‑control trainer layout. |
| Kit composition | Includes pre‑drilled steel tubing, pre‑formed aluminum wing components, fabric covering kits, hardware, and detailed assembly manuals. Estimated build time reported by owners ranges from 400 to 800 hours, depending on builder experience and options selected. |
| Certification | Operates under FAA Experimental‑Amateur‑Built or Light‑Sport Aircraft rules; not type‑certified as a standard‑category aircraft. |
Related Topics
- Rans Aircraft Family – other Rans kit models such as the S‑3 (single‑seat), S‑5 (twin‑engine), S‑7 Courier, and S‑12 (a larger four‑seat design).
- Light‑Sport Aircraft (LSA) – a regulatory category in the United States permitting simple, low‑weight aircraft to be flown with a sport pilot certificate.
- Rotax 912 series engines – widely used powerplants in the LSA and experimental aircraft markets, noted for their reliability and fuel efficiency.
- Experimental‑Amateur‑Built aircraft – aircraft constructed by private individuals from kits or plans, subject to specific FAA regulations and operating limitations.
All information presented reflects publicly available specifications and documented sources up to the knowledge cutoff date; where exact figures vary among builders or sources, ranges are provided.