Production and Manufacturer History
The Gavilán 358 (EL-1 Gavilán 358) was developed by Aero Mercantil, a Bogotá-based company that had served as a Piper dealer since 1952 and began assembling Piper kits in 1968. In 1991, Aero Mercantil sold its shares in AICSA to form Gavilán S.A., a company dedicated specifically to the production of the EL-1 utility aircraft. Production took place in Bogotá, Colombia, and effectively ran throughout the 1990s, ending around 1999–2000. It is estimated that approximately 12 aircraft were built during the program's lifespan.
In late 1999, Gavilán S.A. entered into an agreement with Advanced Wing Technologies (AWT) in Canada to establish production in North America. However, this agreement was abandoned by mid-2000, and no evidence of Canadian-built aircraft ever materialized. The current operational status of Gavilán S.A. is undocumented, though no recent aircraft production has been recorded.
Design and Technical Specifications
Designed for the demanding conditions of remote Colombian airstrips, the Gavilán 358 is a high-wing, fixed-gear utility transport. The aircraft first flew in 1990 and was characterized by a large-volume, boxy fuselage designed to maximize interior space for cargo and medical transport. The cabin can accommodate up to seven passengers or be configured as an air ambulance capable of carrying four stretcher patients and one medical attendant.
The aircraft is powered by a single Textron Lycoming TIO-540-W2A turbocharged, fuel-injected, horizontally-opposed six-cylinder piston engine, producing 350 hp at 2,600 rpm. This engine drives a three-blade constant-speed Hartzell propeller. Technical specifications vary slightly by source, but the wingspan is listed between 12.19 m and 12.8 m, with a length of approximately 9.1 m to 9.53 m. The maximum takeoff weight is approximately 2,000 kg to 2,041 kg.
Service History and Performance
Primarily utilized for bush operations, air-taxi, and charter services, the Gavilán 358 was intended to link remote communities with regional centers. Its performance includes a service ceiling of 22,500 ft and a rate of climb of 800 ft/min. Range estimates vary, with documentation citing either 820 miles at 75% power or 940 nautical miles.
While primarily a civil aircraft, the type saw government service in Colombia. For example, a state-operated aircraft with registration ARC-416 was involved in a fatal accident at Nueva Antioquia on May 24, 2006. Other documented operators include Aero Mercantil S.A., which operated aircraft such as registration 3500Z.
Legacy
The Gavilán 358 is historically significant as one of the few modern, indigenous Latin American single-engine utility aircraft developed for commercial bush work in the late 20th century. While the fleet was small and the production program ended by the turn of the millennium, the aircraft represented a localized effort to create a specialized transport tailored to the unique geographical needs of the region.