| 摘要 |
<p>A target towed by an aircraft is used for practice in shooting objects in flight, such as helicopters. However, this method of training is not sufficiently realistic. The invention offers a better method of practice by utilizing a remotecontrolled model aircraft which registers passing projectiles and which, under predetermined conditions, emits an indication in the form of a signal to a ground station or an indication in the form of a light signal from the model aircraft.</p> |
