The Servos in our range are high quality Hitec Brand, the brand proven over time!

servo size torque kg/cm at 6v speed seconds 60 degrees  at 6v weight in grams comments    
                 
                 
for rudders (analogue servo)              
                 
HS-65HB 24 x 12 x 24mm 2.2kg 0.11sec 11.2grams Steering on RG-65s , Micro Magics 
          and  direct replacement for Dragon force
HS-311
40 x 20 x 36.5mm
3.5kg 0.15sec 43grams Great quaity entry level servo capapble 
          of steering and sails on smaller boats
HS-325HB 40 x 20 x 36.5mm 3.7kg 0.15sec 43grams features stonger , lighter karbonite gears
                 
HS-485HB 40 x 20 x 37mm 6.4kg 0.17sec 45grams Higher power servo    
                 
HS-255BB 33 x 17 x 31 4.8kg 0.11sec 28grams Light and fast for steering  
                 
                 
for rudders (digital servo)              
                 
HS-5485 40 x 20 x 38mm 5.2kg 0.17sec 45grams        
                 
HS-645MG 40 x 20 x 38mm 9.6kg 0.20sec 60grams Best RG-65 sail control , arm servo set up
                 
                 
Waterproof servos              
                 
HS-5086WP
31x 15x 31 mm
306kg 0.15sec 28.5grams ip67 water resistance rated  
                 
HS-646WP 41 x 21 x 40mm 11.6kg 0.17sec 60grams ip67 water resistance rated  
                 
HS-5646WP 42 x 21 x 40mm 12.9kg 0.18sec 61grams ip67 water resistance rated  
                 
                 
Sail control servos              
                 
HS-645MG 40 x 20 x 38mm 9.6kg 0.20sec 60grams Best RG-65 sail control , arm servo set up
                 
HS-765HB 59 x 50 x 29mm 13.2kg 0.23sec 110grams Sail arm included.    
                 
HS-815BB 66 x 30 x 57.6mm 24.7kg 0.38sec (140deg) 152grams 140 degree rotation 115mm arm
                 
HS-785HB 59 x 29 x 50mm 13.2kg   110grams 3.5 rotations 48mm diameter drum
                 

And notes....

Analogue servos VS Digital, whats the difference?

 

Analogue servo motors receives a signal from the servos amplifier 30 times a second.

This signal tells the servo motor when to start rotating and which way to rotate.

Since it only happens 30 times a second, that's the minimum reaction time. 

 

Digital servos send a signal to the servo motor 300 times a second.

Since this signal is received by a digital servo's motor more often, it is able to react much faster and hold its position better.

Digital servos have better centering  and considerably higher holding power.

This power comes at a cost, however, as digital servos tend to draw a lot more power from the on-board battery which means your battery just won't last as long.