Stuart Z Posted March 27 Share Posted March 27 (edited) Hi Has anyone used alternative servos in their Riot? Century apparently out of stock so looking for alternatives. 17g as I understand but are they all the same? Look forward to hearing from you S Edited March 27 by Stuart Z Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted March 27 Share Posted March 27 You should be able to use any similar spec. servo. Just be aware that there are variations in quality so look for a known make. If you go for Hitec you will probably need to reprogram your transmitter to reverse them but whichever you use, check for correct movement before flying! Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted March 27 Author Share Posted March 27 Thanks Martin. I guessed that they may be similar but I noted that the Century ones had no spec given so was difficult to make a comparison Thanks again S Quote Link to comment Share on other sites More sharing options...
colin wray 2 Posted March 27 Share Posted March 27 I replaced the rudder servo on my Riot with a Radient ms125 mg servo Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted March 27 Author Share Posted March 27 Thanks Colin. I was just looking at the Etronix versions. I’ll take a look at the Radient ones as well. My big concern now is getting any servo in with my XXL hands! S Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted March 27 Share Posted March 27 If replacing the aileron servo, then it would be worth doing both or you might find mixing different mfg's you end up with different control surface deflections. 1 Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted March 27 Author Share Posted March 27 Thanks Chris. Point taken and I agree totally. It is a rudder servo that is oscillating rather than rotating. Probably OK to fly but I replace rather than put the plane or people at risk. I find it needs rudder to do good turns (drags it’s tail in turns) and of course it takes a beating on the ground. S Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted March 27 Share Posted March 27 (edited) 1 hour ago, Stuart Z said: Thanks Chris. Point taken and I agree totally. It is a rudder servo that is oscillating rather than rotating. Probably OK to fly but I replace rather than put the plane or people at risk. I find it needs rudder to do good turns (drags it’s tail in turns) and of course it takes a beating on the ground. S I had a similar problem on my Slowpoke, gears on the rudder servo stripped eventually due to the extra stresses imposed by the tailwheel. Replaced it with a metal geared one. Edited March 27 by Shaun Walsh Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted March 27 Author Share Posted March 27 Shaun Thanks for your input. Probably the same on mine. Not worth an autopsy. New servos on order. S Quote Link to comment Share on other sites More sharing options...
Kim Taylor Posted March 27 Share Posted March 27 2 hours ago, Stuart Z said: I find it needs rudder to do good turns (drags it’s tail in turns) and of course it takes a beating on the ground. S I've set some aileron differential on mine, from memory about 1.5 times as much up deflection as down. This makes it turn in a more balanced way by decreasing the tendency for adverse yaw. Or use the rudder 😀 Kim Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted March 27 Author Share Posted March 27 Kim Certainly Will give this a try when the new servos arrive. I tend always to use rudder so will see how this helps S Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted April 5 Author Share Posted April 5 Well, I tried the Radient servos and found them on the small side, bearing in mind mine is a replacement fuz and the servo tray may be different to that supplied in the complete plane. I have also tried the Etronic servo and that was about 1mm too long so out with the file. Bearing in mind I have built a few planes in my time it has prompted the following comments The access to the servos is very restricted and my size 11 hands are not good for the job so it was like surgery with long tweezers and long nose pliers The rudder pushrod is actually tight in the tubing making the servo work very hard. The pushrod is not in line with the servo. In a conventional model all things that can be easily managed-but not in this lump of foam? Probably now put to one side as the rudder is used a lot and this will cause battery drain, shortening flights. Still have a viable Ruckus but after that it’s back to the IC models. So much easier to work on. Just my opinion. Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted April 6 Share Posted April 6 My pushrods were tighter than I liked so I dribbled oil in from the control surface end and wiggled it by hand for a while... didn't fix it 100% but certainly fixed it enough for 400+ flights...... "...... back to ic models. So much easier to work on." It's not because it's electric, it's because it's white! Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted April 20 Author Share Posted April 20 GG Sorry it's been a while but finally got round to it - definitely helps - pulled the rod out and treated most of it to lightweight oil. Makes a big difference to the control movement. I did not oil the end that went through the servo arm just in case it slipped. Hopefully it will be less of a drag on the servo and the battery. BTW I finished up with E-tronix 17G servo in place of the Century one, I note that is still out of stock. The story of radio control modelling at the moment. S 1 Quote Link to comment Share on other sites More sharing options...
Frank Day Posted April 20 Share Posted April 20 Freewing from Motion RC Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted April 20 Share Posted April 20 Pardon? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.