Pneumatic retractable landing gear Robart 145-5 for P-51 Mustang 85°

Robart 145-5 Pneumatic Retractable Landing Gear for Large RC Airplanes

The Robart 145-5 pneumatic retractable landing gear is designed for large radio-controlled airplanes, especially large warbird RC models like the P-51 Mustang. Sturdy and built to withstand the stresses of a heavy model, this pneumatic main gear is suitable for airplanes weighing approximately 9 to 18 kg with a wingspan ranging from 2.03 to 2.54 m. The Robart 145-5 uses a pneumatic system to control the retraction and extension of the two landing gear legs. Its mechanism features a mechanical locking in the retracted and extended positions to securely hold the gear in each of its positions.

Robart Retractable Landing Gear for P-51 Mustang and Large Warbirds

The 145-5 model was developed specifically for large P-51 Mustang models. Its design with offset legs allows for the unique geometry of the Mustang's gear while providing enough space to accommodate large diameter wheels. The gear can accept wheels up to 5 inches (127 mm) and has 1/4 inch (6.35 mm) wheel axles. The retraction angle is 85°, a feature suitable for the main gear configuration of many P-51 models. Robart indicates compatibility with certain P-51 kits from Pica, Platt, Byron, Ziroli, and American Eagle.

Construction Suitable for Large RC Models

The Robart 145-5 combines various materials designed to withstand the significant stresses encountered during taxiing and landings. Its construction includes 6061-T6 aluminum, 4130 chromoly steel, and fiberglass-reinforced nylon. The pneumatic cylinder has a 3/4 inch bore and a multiple seal system. The mechanism also includes an adjustable trunnion for adapting the gear installation to the model. Toe-in and leg length adjustments facilitate adaptation to the reduced model's fuselage and gear geometry.

Installation of the 145-5 Pneumatic Retractable Landing Gear

The Robart 145-5 requires a complete pneumatic installation with an air reservoir, tubing, fittings, and suitable control system. The Robart pneumatic control system is to be provided separately. This retractable gear is primarily intended for experienced modelers building or equipping a large RC airplane. Its robust design makes it particularly suitable for large radio-controlled warbirds, P-51 Mustang models, and large airplanes requiring reliable pneumatic main gear.

Robart 145-5 Features

Pneumatic retractable main landing gear Robart 145-5 Reference Application: Large RC airplanes and warbirds Particularly suited model: P-51 Mustang Retraction angle: 85° Wheels up to 5 inches / 127 mm Wheel axle: 1/4" / 6.35 mm Cylinder bore: 3/4" Offset legs Mechanical locking in retracted and extended positions Toe-in and leg length adjustment Models weighing approximately 9 to 18 kg Indicative wingspan: 2.03 to 2.54 m Construction: 6061-T6 aluminum, 4130 steel, and reinforced nylon