Abstract: The vehicle drag racing simulation system includes a restraining assembly that allows for realistic, simulation of racing of vehicles, such as motorcycles, that allows for limited freedom of movement of the vehicles while remaining generally stationary within a racing simulation area, allowing yaw, pitch and roll movement, as well as movement vertically and horizontally, forward and backward, and side-to-side, so that skill is also involved in riding or driving the vehicles even though they are stationary. A rotatable drive wheel support member is also provided for rotatably engaging the drive wheels of the vehicles. A monitor is provided for monitoring the progress of the simulated drag racing, and a control unit is provided for controlling the monitor and the drag racing simulation. Brakes can also be provided for stopping the competition. The racing platform includes a burnout area at the rear of the racing platform, with flaps that can be raised for restraining the vehicles during a burnout period.

Abstract: An improved method for assembling a travelling wave tube (TWT) including the step of forming a heat stripe along the barrel of the TWT to reduce the diameter of the barrel and create an interference fit between the barrel and internal components of the TWT.