Nicholson compares the design, materials and construction of eight popular servo-pendulum models, piece by piece. He has done a lot of your work if you are weighing multiple options. No illustrations on line.
[Cruising World, January 2002]
This system is inserted through the transom and operates directly on the steering quadrant, reducing cockpit clutter and permitting use with a hydraulic steering system. An interesting history of vane design by Yves Gelinas is included.
[Cap Horn, produits marins, Oka, Quebec, Canada]
One couple′s doubts, then subsequent experience with Monitor windvane steering on a fast-to-accelerate 64-foot sloop.
[SetSail.com, Charlotte, NC, USA]
Servo-pendulum gear for light displacement boats up to 30′ LOA. Works on tiller and wheel steering systems. Pendulum paddle can be removed in port to avoid damage.
[Scanmar International, Richmond, CA, USA]
Steering gear uses a diagonal-axis air foil controlling a servo-pendulum blade operating either on the tiller or steering system or on an independent auxiliary rudder.
[Fleming Marine Engineering, Port Lincoln, South Australia, Australia]
Alarm panel that must be reset frequently to assure watachkeeper stays awake.
[Aqualarm, Chula Vista, CA, USA]
Servo-pendulum wind vane with a 3-position adjustable response for varying wind strengths.
[Voyager Windvanes Inc., Cambridge, ON, Canada]
A wind vane controls a pendulum trimtab attached directly to the boat′s rudder. No lines to the cockpit or steering quadrant.
[Scanmar International, Richmond, CA, USA]
Simple servo-pendulum wind vane for tiller-steering on smaller sailboats. Pendulum can kick up to avoid damage if it hits something.
[VectaVane Developments Ltd., Newport, the U.K.]
A trim tab steering system for transom-hung rudders. Designed by Larry Pardey, the vane mounts on the backstay and clears boomkin,
[Mike Anderson Boatworks, Newport Beach, CA, USA]