How Gyros Work
While I was writing this column, several people asked me if installing a Seakeeper would affect steering by preventing the boat from heeling into a turn (or out of it, for some displacement hulls). And if it did, how would that affect the boat’s handling? Funny, nobody asked the same question about fin stabilizers, which also sense heeling and adjust the fins appropriately. But maybe it’s because gyrostabilizers have that “high tech” thing going on.
I asked Bob Johnstone of MJM Yachts, who has spent a lot of time running with Seakeepers. He said it had no effect whatsoever. Then I asked the engineers at Seakeeper, who wrote back: “After running extensive tests on a wide range of vessels we have found that Seakeeper does not have any measurable effect on hard turns or steering while the boat is under way. The simplified explanation for this is that although the Seakeeper will momentarily try to resist the movement, the boat easily overpowers it and the sphere will quickly