Robart 601 85° mechanical retractable landing gear for RC airplane .15 to .40

Robart 85° Retractable Landing Gear for RC Aircraft

The main feature of the Robart 601 is its 85° retraction angle. This geometry allows the mechanism to be adapted to the wing shape and landing gear compartment, especially when the model's configuration does not allow for a perfectly perpendicular retraction. The system operates mechanically and therefore does not require a compressed air tank or pneumatic control. The retraction and extension are actuated by a sufficiently powerful servo. Robart recommends a standard or mini servo with a torque of over 48 oz-in, approximately 3.46 kg·cm. The mechanism features positive locks in the retracted and extended positions. The cam system ensures a smooth and reliable movement during landing gear retraction.

Lightweight and Sturdy Main Landing Gear

The Robart 601 is constructed with a fiberglass-reinforced nylon housing, providing rigidity and strength while maintaining a reduced weight. The legs are made of 1/8-inch hardened steel, approximately 3.2 mm in diameter. This design offers a suitable compromise for the stresses encountered by small RC aircraft during taxiing, takeoffs, and landings. Weighing only 2.7 oz per pair, approximately 77 g, the Robart 601 minimizes the added weight associated with installing retractable landing gear.

For .15 to .40 Size RC Aircraft

The Robart 601 is designed for models ranging from 0.15 to 0.40, with a maximum recommended weight of approximately 5 lbs or 2.27 kg. It can be used on various RC sport, leisure, and semi-scale models equipped with retractable main landing gear. Its mechanical operation provides a simple solution for hobbyists looking to install an 85° retractable RC landing gear without the added weight and complexity of a pneumatic system. For a complete installation, an appropriate control servo must be provided as it is not included with the landing gear mechanisms.

Robart 601 Features

Main mechanical retractable landing gear Robart 601 reference Set of 2 mechanisms Retraction angle: 85° For .15 to .40 size RC aircraft Maximum model weight: 5 lbs / approximately 2.27 kg Fiberglass-reinforced nylon housing Hardened steel legs Landing gear wire diameter: 1/8" / approximately 3.2 mm Positive lock in retracted and extended positions Mechanical operation via servo Standard or mini servo Recommended torque: over 48 oz-in / approximately 3.46 kg·cm Weight: 2.7 oz / approximately 77 g per pair Servo not included No pneumatic system required Intended for RC sport, leisure, and semi-scale aircraft