| 摘要 |
<p>1,106,776. Towed targets. DORNIER SYSTEM G.m.b.H. 19 Jan., 1966 [10 March, 1965], No. 2480/66. Heading B7W. [Also in Division F2] A target intended to be towed by an aircraft is connected to the towing cable by a coil spring provided with means for damping the rebound of the spring, e.g. after the cable becomes taut on initial deployment of the target. The spring may be so constructed as to deform plastically when subjected to the shock loads normally sustained, or the rebound may be prevented by a conical washer 8 on a body 5 connected to the spring 6. The washer engaging the walls of a sleeve 4 through which the towing cable passes, and allowing movement in one direction only. Alternatively, the body (5) may be grooved (at 9, Fig. 3, not shown) or part conical, to receive balls (10) which jam against the wall (4) to prevent movement to contract the spring. The conical washer or the wall may be constructed to allow the spring to contract, but with friction damping. The spring is located at the rear of the target, the towing cable extending through the sleeve (4) and tube (2) through a front portion of the target which may contain e.g. radar reflectors and a hit indicator.</p> |
