N420SF

N420SF is an American Aviation AA-1, a single-engine piston aircraft operated by SNOOK CHASE S J. SkyMeter has tracked 222 flights totalling 228 hours of airtime via ADS-B. The most frequent segment is KPVF to KPVF. Service window in our records spans 413 days. Of those flights, 64 (28.8%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The American Aviation AA-1 has a maximum takeoff weight of 1,500 lb, light wake category.

About the American Aviation AA-1

The American Aviation AA-1 series represents one of general aviation's most distinctive attempts at affordable sport flying through radical simplicity. Introduced in 1969 as the AA-1 Yankee, this all-metal two-seater descended from the Bede BD-1 kitplane and featured bonded aluminum honeycomb construction instead of rivets, a manufacturing technique borrowed from aerospace that promised lighter weight and lower production costs. The design philosophy was uncompromising: a small wing optimized for speed rather than docility, a 108-horsepower Lycoming O-235 engine, and handling characteristics that rewarded precision.

The Yankee earned a reputation as a "pilot's airplane" that was honest but demanding, with crisp roll response and little tolerance for sloppy technique. American Aviation became Grumman American in 1972, and the line evolved through the AA-1A Trainer, AA-1B, and AA-1C Lynx variants with incremental refinements to cockpit ergonomics and spin recovery characteristics. Production continued until 1978 with approximately 1,800 aircraft built across all variants.

The type found a loyal following among pilots who appreciated its 140-knot cruise speed and nimble handling, though its relatively high stall speeds and firm ride made it less forgiving than contemporaries like the Cessna 150. Today the AA-1 series remains popular in the owner-flown community as an economical cross-country machine that delivers near-Bonanza cruise speeds on a fraction of the fuel burn. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.