| 摘要 |
This is an electrical system not an electronic one. The light units should be placed as close to an actual circle as possible. For a helicopter visual landing in rough seas, low visibility and darkness, the approach for landing becomes a hazardous task. Good visibility of the landing area will be possible due to this system effectiveness. The helicopter can now become a truly all-weather vehicle. No new technology is needed. The parts for the system can be purchased off a store shelf, a minor modification of an existing item, or made by relatively minor fabrication. |
