Twin-Valve Wing/Fuselage Joint for Oil System

This type of joint permits to assemble and separate two sections of whaterver oil system for breaks or for landing gears with no leakage or pressure loss. The joint contains two automatic valves: when the central ring that connects the two sections in unscrewed as to separate one section from the other, the valves close automatically, so barring the way to oil or pressure. When, on the contrary, the two sections are re-connected, and screwed together, the valves will open again to permit oil or pressure circulation. This joint can be used on models having the main landing gear fixed to the wing or in which the half-wings can be dismounted from the fuselage. In these models the whole oil system can be entirely installed into the fuselage, and the wing, or the half-wings can be easily removed still keeping in place the respective landing gear without any leakage from the hydraulic system.