Danny built Olo’s radar tower, at left, from readily available aluminum plate and tubing, below and illustration on facing page. He sets the angle of the radar manually by adjusting a turnbuckle, on facing page.

A home-built tower with manumatic leveler Issue 78 : May/Jun 2011 Several years ago, my wife, Kari, and I decided to venture beyond the relative safety of our normal cruising grounds in the Apostle Is...