Servo-Auxiliary Concept

Most auxiliary rudder systems like the South Atlantic S 500 or S 600 on the market are servo-driven – meaning they employ a servo rudder to drive the auxiliary rudder. Instead of lines to the boat’s wheel/tiller to drive main rudder, there are connectied to the unit’s own auxiliary rudder. The servo-auxiliary systems are directly steering the boat with their own auxiliary rudders.

south atlantic self steering S 600k


The South Atlantic S 500 or S 600 main advantages:

  • Less complex – does not increase overall length as much. It is possible to remove the servo unit in seconds
  • Ability to remove South Atlantic rudder – servo-auxiliary rudder Lift up
  • Ability to install off center - The same physic laws apply to every system in the hole market-
  • The auxiliary rudder has maximum leverage for turning the boat from its position off the stern and the main rudder can be locked in place to take care of weather helm.

Self Steering Wind Vane S - 500

south atlantic self steering S 500

when a servo pendulum self-steering wind-vane like the S 440 can´t fit the requirements of a given sailboat (Hydraulic rudder gear, very big force needed to turn the rudder, etc), auxiliary rudder systems are the way to go.


how does our wind vane work

Our Windvane Self Steering : S 500. The S 500 consist of a servo pendulum rudder mounted directly to an auxiliary rudder which is part of the self-steering system. The main rudder then is used to "trim" the main course and the self-steering gear steers "around" that main course according to the changes of the apparent wind.
south atlantic self steering wind vane S 500  

Advantages of our Windvane

" Adjustable vane (for strong or light wind)
" Vane fixing in central position
" Adjustable power transmission
" Easy to start and stop operating
" Lift up swinging rudder, + - 170 degrees
" Protection against overloading
"Autopilot option: a pin fitting for an Autohelm or Simrad cockpit autopilot is provided as standard on the windvane arm
" Detachable auxiliary rudder

"Length of air vane mast, pendulum shaft and tiller arm customised to fit each individual boat.

Strength and Durability
South Atlantic, uses a 100% sea water resistant alloy.
South Atlantic grants a lifetime guarantee against damage in the material (aluminium).

" Sea water resistant aluminium,
" POM bearings.
" Servo rudder, Wood made up with [bituminous]
" 6 mm polycarbonate vane

"We use sliding bearings: they need no upkeep and run softly.
Demand for spare bearings is almost man-existing!

ca. 30 - 35 Kilos

south atlantic windpilot self steering S 600 south atlantic windvane self steering S 600


Serie S 500 K:       < 10.00 m / 33 ft
Serie S 500 K II:    < 11.00 m / 36 ft
Serie S 500 G:       < 11.50 m / 38 ft
Serie S 500 G II:    < 12.60 m / 42 ft


Serie S 500 K:         < 5.000 kg
Serie S 500 K II:      < 7.000 kg
Serie S 500 G:         < 8.000 kg
Serie S 500 G II:     < 10.000 kg


Windvane and Autopilot
Almost 100% of windvane buyers had an automatic pilot on board before the purchase! " The windvane is used 90% of the times after both systems have been installed! " When a ship sails with sails set, the wind steers it better!

Save 5% on every order!

Want to watch how it works?

S 500 K Basic          (FOB)   3141,00 €*     S 500 K Plus         (FOB)   3300,00 €*  
S 500 K II Basic      (FOB)   3237,00 €*     S 500 K II Plus     (FOB)   3397,00 €*  
S 500 G Basic         (FOB)   3576,00 €*     S 500 G Plus         (FOB)   3736,00 €*  
S 500 G II Basic     (FOB)   3794,00 €*     S 500 G II Plus     (FOB)   3950,00 €*  
S 500 Basic units include:
* Standard Mounting.
* 1 Air foil.
* 1 blade.
* Manual

S 500 plus units include:
*Standard Mounting, 2 Air vane
* 2 Rudder, Berings set (body and shaft)
* 1 push rod, Chain/pin for the chain
* , Tools (Allem keys), User guide
Terms: 30 % deposit with order. Full payment before shipment.       Check Terms and Conditions of Sale
    1. Advance Purchase Special Offers:
      Order 30 Days in Advance and Save 2.5%
      Order 60 Days in Advance and Save 5%
      Order 90 Days in Advance and Save 7.5%
      Order 120 Days in Advance and Save 10%

      Terms and Conditions: 40 % deposit with order. Full payment before shipment. Rates shown are applicable to the windvane not to other items, subject to availability.

    1. Wired transfers directly to our bank; (contact us for wire transfer information).
    2. Bitcoins, ETH, LTC and many more cryptocurrencies (contact us for transfer information)
    3. Money order, Personal checks and certified check are subject to a clearing. period.
    4. Paypal
    5. Note: Offers can not be combined.
    6. Check Terms and Conditions of Sale

    1. Delivery: Immediate to 6 weeks as quoted when ordered.
      SHIPPING: We cannot be responsible for any fees, charges, delays or problems caused by shippers or customs once the shipment leaves our factory. Customs procedures and charges vary from country to country. Please check with local officials to get an idea of costs. International customers are responsible for any import duties and taxes associated with their order. Read More

    1. Prices, design, and specifications: are subject to change without notice. Neither manufacturer nor seller shall be liable for any damage to the yacht, persons, or property due to failure of the Self steering or misuse of the same.
      Prices do not include fright. However, local and international taxes on the product have to be paid. Check Terms and Conditions of Sale

    1. Each system warranted for three years of first owner's use against defective materials and workmanship plus our life- warrantee on damage in the material (aluminium) made by weather.The warranty does not cover transport or visits to the vessel, and proof of purchase must be supplied.

Offers valid until 31- 12- 2019 *.

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