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Old Jan 10, 2013, 03:15 PM
martin richards is online now
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Nice high torque servo


http://www.rcmart.com/sanwa-ers962-t...o-p-36087.html Looks ideal (apart from price) for larger models. The torque rating would, I calculate, still be over 20 kg/cm (about 290 oz/inch - 195 Newton/cm) at 6.0 V. Waterproof as well and weighing only 62 gms (2 oz approx.)
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Old Jan 31, 2013, 10:51 AM
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!


Quote:
Originally Posted by martin richards View Post
http://www.rcmart.com/sanwa-ers962-t...o-p-36087.html Looks ideal (apart from price) for larger models. The torque rating would, I calculate, still be over 20 kg/cm (about 290 oz/inch - 195 Newton/cm) at 6.0 V. Waterproof as well and weighing only 62 gms (2 oz approx.)
Hi Martin
Wow! that is one strong servo! Wonder if this would make a good sail servo? My favorite Futaba S 3801 as you know is no longer produced - The one you point out is a lot stronger! Might brake something if you weren't careful but it would sure pull in the sails!! Looks like they are sold out!

here are it's specs to the S 3801
Futaba S3801 Analog 3.77 oz (107.0 g) 2.321.141.97 in (58.929.050.0 mm)
4.8V:156.0 oz-in (11.2 kg-cm)
6.0V: 194.0 oz-in (14.0 kg-cm)
4.8V:0.30 sec/60
6.0V:0.26 sec/60
3-pole Dual Bearings Hybrid
Old Jan 31, 2013, 06:35 PM
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The original link seems to have died. It's also on http://www.rcmart.com/savox-sb2273sg...o-p-36113.html as the Savox SB-2273SG It's also about twice as fast as your Futaba S 3801. $119 for a servo's still a bit pricy though.
Old Jan 31, 2013, 07:31 PM
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Martin
Always good to chat with you! I have not had any issues with the speed of the
S3801 - I guess having a faster servo would be nice. I have several S3801's on hand that I collected over the years so I am good for now, but this one is of interest if I could find it at a lower price!

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Old Jan 31, 2013, 07:58 PM
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Maybe on some of Dick L's big trimarans, where reaction speed to gusts seems important to stop capsizing/pitchpoling. We casual saiors, though, probably aren't as quick with our thumbs on the sticks.


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