N540AD

N540AD is a Schweizer Aircraft Corporation SA 2-37A, a single-engine piston aircraft operated by HORST KENDALL N. SkyMeter has tracked 140 flights totalling 47 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is S37 to KLNS. Service window in our records spans 395 days. Of those flights, 8 (5.7%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Schweizer Aircraft Corporation SA 2-37A has a maximum takeoff weight of 2,150 lb, light wake category.

About the Schweizer Aircraft Corporation SA 2-37A

The Schweizer SA 2-37A represents an unusual niche in general aviation: a purpose-built powered sailplane designed for self-launch and extended motor-glider operations. Developed by Schweizer Aircraft Corporation in the 1980s from their successful SGS 2-32 two-seat sailplane, the SA 2-37A added a 180-horsepower Lycoming O-360 engine and retractable landing gear to create an aircraft that could take off under its own power, climb to altitude, shut down the engine, and then soar like a pure glider. This dual capability made it popular for soaring instruction, cross-country flights without ground crew support, and aerial photography missions requiring both powered positioning and quiet gliding observation.

The type's long, high-aspect-ratio wings deliver exceptional glide performance—a glide ratio exceeding 30:1 with the engine stopped and propeller feathered—while the engine provides enough power for a respectable 700-foot-per-minute climb rate when needed. Maximum cruise speed with power is around 113 knots, though pilots typically fly much slower to maximize endurance and gliding efficiency. The SA 2-37A found a small but dedicated following among soaring enthusiasts and specialized operators who valued its unique combination of sailplane grace and powered-aircraft independence.

Production numbers remained modest, making it a relatively rare sight compared to conventional light aircraft or pure gliders. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.