Safety Pin for JS-3 Retractable Tail Wheel

The Safety Pin for JS-3 sailplanes is an accessory that keeps the retractable tail wheel securely locked during rigging and derigging operations. Its primary purpose is to prevent accidental retraction of the tail wheel, which could otherwise cause severe damage to the wheel doors and mechanism.

Why Blocking the Tail Wheel Matters

On the JS-3, the retractable tail wheel is mechanically linked to the main landing gear. If the gear is retracted while the glider is still on the ground and the tail wheel is not locked, the wheel can retract unexpectedly, leading to damage of the doors and surrounding structure. By securing the tail wheel with this safety pin, you eliminate this risk and ensure safe handling of the aircraft during assembly, disassembly, and ground operations. Unlike the supplied multitool, which also serves as a hex key for removing the horizontal stabilizer, the separate dedicated safety pin allows you to block the tail wheel independently of stabilizer removal. This means the wheel can be secured immediately, without waiting for other steps in the derigging process.

Visibility and Safety Assurance

The safety pin is equipped with a “Remove Before Flight” streamer, ensuring high visibility. This visual cue minimizes the chance of oversight and helps guarantee that the tail wheel remains locked until the aircraft is safely prepared for flight.