Pneumatic retractable landing gear Robart 630PSPF for Spitfire 1/5

Robart Retractable Gear for Pica/Cox Spitfire 1/5

Reference 630PSPF is specifically associated with the Pica/Cox Spitfire 1/5 Scale in the Robart gear search system. This application is important for the modeler: the gear is not just a universal mechanism from the 630 series, but a reference intended for a specific airframe and gear geometry. The Pica Spitfire is a large radio-controlled warbird with approximately 88 inches wingspan, or about 2.24 m. Users of this model also indicate a length of about 6.25 inches between the gear pivot axis and the wheel axis for the legs corresponding to the Robart configuration. This dimension is a useful indication to check the installation compatibility, but it should be verified with the airframe before mounting.

Robust Construction of Robart 630 Series

The 630PSPF benefits from the design of the 630 series, developed for models weighing up to approximately 24 lb, or 10.9 kg. Robart uses heat-treated aluminum alloy frames and trunnions for this range, designed to withstand the forces generated by the taxiing and landings of large RC models. The mechanism is operated by a 1/2-inch pneumatic cylinder with three sealing rings. Positive locks in the retracted and extended positions firmly hold the gear in each of its positions. The 630 series accepts 1/2-inch (12.7 mm) or 7/16-inch (11.1 mm) legs with the appropriate adapter. This design allows for the use of different types of legs or RoboStruts depending on the model.

Pneumatic Gear Suitable for Large RC Spitfire

The Robart 630PSPF is particularly suitable for building or restoring the Pica/Cox Spitfire 1/5. The sizing of the mechanism meets the requirements of a large warbird equipped with retractable gear in the wings. The system requires a complete pneumatic circuit: air tank, control valve, tubing, fittings, and filling system. Robart provides a separate pneumatic control kit to operate its 630 series gears. The modeler must also choose the legs, wheels, and any RoboStruts based on the exact geometry of their Spitfire. This verification is particularly important on a 1/5 scale model to ensure the gear height, wheel position, and available space in the gear bays are respected.

Features of Robart 630PSPF

Main pneumatic retractable gear Robart 630PSPF Reference Specific application: Pica/Cox Spitfire 1/5 Scale Intended for: Spitfire RC, warbirds, and large radio-controlled aircraft Series: Robart 630 Series capacity: up to 24 lb / approximately 10.9 kg 1/2" pneumatic cylinder Triple-sealed cylinder Positive locking in retracted and extended positions Heat-treated aluminum alloy frame and trunnions Compatible with 1/2" or 7/16" legs with adapter Pneumatic operation Air tank and pneumatic control system to be provided Legs, wheels, and accessories to be selected according to Spitfire configuration Particularly suitable for Pica/Cox Spitfire 1/5