Pneumatic retractable landing gear Robart 154 P-51 85° for large RC airplane

Robart 154 Pneumatic Retractable Landing Gear for Large RC Airplane

The Robart 154 pneumatic retractable landing gear is designed for large radio-controlled airplanes and Giant Scale warbirds requiring a sturdy main gear capable of supporting the stresses of a heavy model. This model stands out for its P-51 style offset legs, pneumatic mechanism, and ability to accommodate wheels up to 6 inches in diameter, approximately 152 mm. The Robart 154 is intended for models weighing approximately 20 to 55 lbs, roughly 9 to 25 kg. It is suitable for large warbirds and large-scale models for which a conventional landing gear would not be adequately sized.

Robart 154 Retractable Landing Gear with P-51 Style Offset Legs

The Robart 154 features an 85° retract system with P-51 style offset legs. This geometry allows for replicating the characteristic configuration of the main landing gear of many fighter planes equipped with wing retractable landing gear. The model is equipped with a pair of offset legs approximately 11 inches in length, about 279 mm. The design can also be adapted to different landing gear configurations based on wing geometry and desired retraction direction. The 90° leg angle may be suitable for wings without dihedral, while the 85° configuration is suitable for wings with dihedral. The mechanism can also be modified to allow rearward retraction.

Robust Construction for Giant Scale Models

The Robart 154 pneumatic retractable landing gear is made from aerospace-grade steel and aluminum components. It incorporates functional oleo pneumatic legs made of 4130 chromoly steel, with a diameter of 5/8 inch, approximately 15.9 mm. These oleo legs are adjustable and allow for adjusting toe-in or toe-out to adapt the model's ground behavior and the gear geometry to the airframe. The mechanism also features positive locks in the retracted position, while the 5/8 inch pneumatic cylinder has triple sealing. The wheel axles are 1/4 inch, approximately 6.35 mm.

For Large Warbirds and Large RC Airplanes

With its ability to accommodate wheels up to 6 inches (152 mm) and its operating range of approximately 9 to 25 kg, the Robart 154 is primarily aimed at hobbyists looking for pneumatic retractable landing gear for large RC airplanes. Its design with offset legs makes it particularly suitable for P-51 Mustangs and other large warbirds using a similar landing gear architecture. The system is also suitable for custom builds and Giant Scale models when the landing gear dimensions and geometry match the reference specifications.

Robart 154 Features

Pneumatic main retractable landing gear Robart 154 reference Set of 2 mechanisms Retraction angle: 85° P-51 style offset legs Length of offset legs: approximately 11" / 279 mm Wheels up to 6" / 152 mm Models from 20 to 55 lbs / approximately 9 to 25 kg Functional oleo pneumatic legs Legs made of 4130 chromoly steel Leg diameter: 5/8" / 15.9 mm Triple-sealed pneumatic cylinder Cylinder diameter: 5/8" Wheel axles: 1/4" / 6.35 mm Toe-in and toe-out adjustment Aerospace-grade steel and aluminum construction Positive locking in retracted position Adaptation to different wing geometries Destination: large RC airplanes, warbirds, and Giant Scale models