ZK-TWU

ZK-TWU is a Robinson Helicopter Company R44, a single-engine piston aircraft. SkyMeter has tracked 132 flights totalling 86 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is NZQN to NZQN. Service window in our records spans 394 days. Of those flights, 4 (3.0%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Robinson Helicopter Company R44 has a maximum takeoff weight of 2,500 lb, light wake category.

About the Robinson Helicopter Company R44

The Robinson R44 is the world's best-selling four-seat light helicopter, a piston-powered workhorse that democratized rotorcraft ownership when it entered production in 1992. Built by Robinson Helicopter Company in Torrance, California, the R44 evolved from the company's earlier two-seat R22 and quickly became the go-to choice for flight training, personal transport, aerial photography, and light utility work. Its Lycoming O-540 six-cylinder engine delivers 245 horsepower, giving the R44 a cruise speed around 110 knots and a range of roughly 300 nautical miles—modest figures that reflect its design priority of affordability and simplicity over raw performance.

The R44 operates comfortably up to about 14,000 feet density altitude and can carry four adults in standard atmospheric conditions, though payload drops quickly in hot-and-high environments. What sets the R44 apart is its price point: at roughly half the acquisition cost of turbine alternatives, it opened helicopter flying to thousands of owner-pilots and small operators who would otherwise be priced out of the market. The type's two-bladed teetering rotor system and straightforward maintenance schedule keep operating costs manageable, though pilots must respect its relatively low inertia rotor—quick action is required in the event of engine failure.

More than 6,000 R44s have been delivered worldwide, making it a common sight at general aviation airports across North America, Europe, and Australia. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.