The Gyro-Gale break-away fin is rather simple in design, it deals separately with the two stress factors which impact upon all stabilizers. Stress number one is the bending stress which is obtained from the backward pressure on a fin as it goes forward through the water. Stress number two is the torsion stress which is realized as the fin is twisted up and down in the water. For one piece of metal to handle both the bending stress and the torsion stress simultaneously, an extremely strong metal post is required. We feel that such a strong post poses a clear danger to the hull of a boat. lf a fin mounted on a single metal post should strike a solid object, it could tear a hole in the hull and possibly sink the boat.

On the Gyro-Gale Break-Away Fin, we have utilized not one large metal post, but rather two separate metal components each of which adequately handles one separate stress, but which taken together are not strong enough to damage your hull. The bending stress is handled by an outer cylinder to which the fin is attached. The torsion stress is handled by an hexagonal rod which is inside of the outer cylinder, and which, when activated, causes the fins to go up or down. These two components each are fully strong enough to handle their respective stresses, but together are not as strong as one solid metal post.

Accordingly, when utilizing our break-away fin, it will collapse before causing serious damage to your hull. Many other makes of stabilizers will not collapse. Thus, they fail a major test of that systems safety.