| 摘要 |
A display device in which a banner towed behind a moving vehicle such as a boat, is stabilized by a self-regulating drogue parachute attached to the trailing end of the banner so as to maintain the banner in a vertical plane with its longitudinal axis substantially horizontal, for a wide range of air speeds. When not in use, the banner is wound onto a roller rotatably and removably mounted on a support carried by the vehicle.
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