ZK-RTA

ZK-RTA is a Grumman American G164, a single-engine piston aircraft. SkyMeter has tracked 16 flights totalling 4 hours of airtime via ADS-B. The most frequent segment is NZTL to NZTU. Service window in our records spans 208 days. Of those flights, 2 (12.5%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Grumman American G164 has a 42 ft wingspan, a maximum takeoff weight of 6,075 lb.

About the Grumman American G164

The Grumman G-164 Ag-Cat is a rugged agricultural biplane that became one of the most successful crop-dusting aircraft in American aviation history. First flown in 1957, the Ag-Cat was Grumman's entry into the civilian agricultural market, applying the company's legendary structural engineering from naval fighters to the demanding world of low-altitude aerial application. Built with a steel-tube fuselage and fabric-covered wings, the biplane configuration provided exceptional slow-flight handling and the ability to operate from short, unprepared strips adjacent to fields.

The design proved so durable that Ag-Cats remained in production for over three decades, with more than 2,400 built across multiple variants powered by radial engines ranging from 220 to 600 horsepower. The type's wide-track landing gear, excellent visibility from the elevated cockpit, and ability to carry chemical loads up to 2,000 pounds made it ideal for agricultural operations across North America. Many Ag-Cats accumulated tens of thousands of flight hours in service, a testament to Grumman's "built like a tank" philosophy.

While newer turbine-powered ag-planes have largely replaced it in commercial fleets, the Ag-Cat remains beloved among operators for its simplicity, reliability, and forgiving flight characteristics at the low speeds and altitudes where aerial application work happens. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.