More sonar preps...

Marc and Daniel Laforge have offered their services to help build a sonar anchor. We will need to lower the instrument underwater to about 3 feet (1 m) from the bottom and it will have to remain motionless in order to give us accurate images. The plan is to attach the weight under the sonar and lower it with a rope. When the anchor reaches the bottom we will keep a tension on the rope. Here is the anchor.


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