U.S. Patent Specifications

An aircraft undercarriage of the tandem type comprising in combination: an undercarriage leg, a common axle journalled in the said leg, one arm fixedly connected to one end of the said axle and a second arm rotatably mounted on the other end of the said axle, stub axles mounted on the free ends of the said arms parallel to the said common axle of the latter and pointing in opposite directions, and wheels journalled on the said stub axles and having their centre planes alignment with one another.