N254AK

N254AK is a Thrush Aircraft Thrush 510G, a single-engine turboprop operated by ESTABROOK MARK S. SkyMeter has tracked 78 flights totalling 48 hours of airtime via ADS-B. The most frequent segment is KRGK to KRGK. Service window in our records spans 398 days. Of those flights, 2 (2.6%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Thrush Aircraft Thrush 510G has a maximum takeoff weight of 8,000 lb, light wake category.

About the Thrush Aircraft Thrush 510G

The Thrush 510G is a purpose-built agricultural aircraft manufactured by Thrush Aircraft in Albany, Georgia, representing the turboprop evolution of a lineage that traces back to the 1950s Rockwell Thrush Commander. Powered by a Pratt & Whitney Canada PT6A-34AG turbine producing 750 shaft horsepower, the 510G is designed specifically for aerial application work—crop dusting, fertilizing, and pest control—with a robust airframe capable of operating from short, unprepared strips in demanding agricultural environments. Its low-wing configuration and reinforced structure allow it to carry chemical payloads of up to 510 gallons (hence the model designation), making it one of the most capable single-engine ag-planes in production.

The aircraft's operating envelope reflects its specialized mission: a never-exceed speed of 174 knots and normal operating speed of 145 knots provide adequate performance for application passes while maintaining structural integrity during the repetitive pull-ups and tight turns characteristic of aerial application. The stall speeds—58 knots in landing configuration and 65 knots clean—enable slow, controlled passes over fields at typical application altitudes of 5 to 15 feet above crop canopy. The PT6A turbine offers significant advantages over piston-powered ag-planes, including better hot-and-high performance, reduced maintenance, and the ability to burn Jet-A fuel, which is more widely available and safer to handle than avgas in remote agricultural operations.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.