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Joined May 2014
7 Posts
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Looks great ! Wonderful .
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Joined Jun 2013
42 Posts
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Quote:
http://www.xq-power.com/EnProduct_Show.asp?ID=117 Would it be a good option for 80cc? or you can recommend me a better?? |
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If your looking for a HV servo for a 80cc plane, and it's a 3d plane and not a warbird you might need a stronger servo than that. How many servos per surface do you have? If it is only one servo per surface you might want to go with one of the brushless ones that have more power, or the XQ-S4230D.
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That is what you have to decide... What is the power source you are gonna use for your plane? How many Volts etc. are you gonna go strait from the receiver to the servos, or are you going to use a power box? There are so many servos out today with different voltage levels, you have a lot of choices.
The brushless XQ servos cost twice the price of the standard and HV digital ones, but they are faster and more efficient. The HV coreless ones will do just fine but on an 80cc 3d plane running one servo per surface, your gonna want to go with one with high torque (a little overkill is better, less stress on the servo). |
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Hey TJ, you ever seen an XQ 4020 do this? https://www.youtube.com/watch?v=JBk2...zfV0-1cjA35yLg
When I did the maiden I noticed it doing this just a little bit. Now it's getting much worse. I thought it may just be because they are not HV servos and they were doing it because the LiFe packs were freshly charged and hadn't dropped down to their nominal voltage of around 6.6v, but then it kept doing it. I put a voltage regulator on to bring the voltage down to under 6v and it still does it! I had a XQ 4013 that gave me a similar issue, but it would only do it on a fresh charged battery. Never gave me a problem after I worked the servos a little to drop the voltage. I sent an email to Craig (at redwing) but haven't heard back yet. He said that the 4020s are a good servo and are as reliable as the big brands, which is why I went with them in the first place. They have already warrantied one of them from the set I bought for this plane. I went to do the maiden and one I had on an elevator took a dump on me. It started sending noise all through the system and made the other servos freak out. I'm starting to worry that these XQs may not have been a good choice. FYI, the plane is a 50cc Aeroworks Extra 300. Power is supplied by two Redwing 6.6v LiFe batteries into a Redwing Red Powerbox. Thanks! Jeremy |
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It may sound like I'm just playing on words but, ... I'm not. Servo's don't flutter, control surfaces do. Your servo is jittering. If the control surface did what its doing now while in flight, then the control surfacing would have fluttered, and an inept servo might have been a contributing factor.
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Hey Jeremy
Craig is our ONLY service guy right now (soon we'll have another) so he gets swamped at times. Per the servo - 1) if it's just the one and you want to swap it out let's do that. 2) per the issue, it seems like it's hunting for center due to low dead band, high speed, lack of resistance and it's getting into a reverb pattern. If you had ANY tension (air on the wing in the air in flight - but to test, take 2 pieces of loop Velcro (the soft side) and stick it between the wing and aileron just to give a bit of resistance. then try ... I'm betting it cancels it out completely which would confirm the above thought Bottom line though - Redwing stands behind our products. If you decide to swap it out we'll take care of you |
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Joined Apr 2014
44 Posts
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I have a new 3DHS Bigfoot and wanted to try these servos out. What XQ servo would you recommend? I mainly run Hitec on all my planes.
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