Balsa USA Stingray with DLE-20, RC Plane Build N0 20: Installing Hitec servos in tail section
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- Опубліковано 8 лют 2025
- Welcome to my build series of the Balsa USA Stingray RC plane kit. The Stingray 120 is a great trainer and sport rc plane with an 83-inch wingspan and powered by a DLE-20 RC gas rc plane engine. I will be using a Futaba transmitter system with Futaba or Hitec servos and receiver. This plane is designed for .80 to .90 2-stroke glow engines, .90 to 1.20 4-stroke glow engines, and 15cc to 30cc gas engines. I will be using basic techniques of building rc plane balsa kits (or at least the techniques I have learned to build rc planes).
All of these videos will be placed on a playlist.
In this video I show how to install HiTec HS-645MG ultra torque servos in the tail section for the rudder and elevator. I decided to install them flush mounted on the rear fuselage sides. I show how to make a servo mounting bay by cutting an opening in the fuselage and install mounting rails for the servos. This is not the only way to install a servo mounting bay, there are other methods, but this will work for this build. In my next video in this build series I will install similar servo mounting bays in the wings for the aileron servos.
I have been building, flying, crashing, modifying, and repairing radio control planes (RC Planes) for many years and enjoy sharing what I do with the radio control plane community, so I started RC Plane Tech channel for fun. I am not an expert, there are many different techniques when building radio control planes. A good way to learn about flying and building rc planes is to see what others are doing, that's what I do and that's why I like to share what I do.
Thanks for watching my channel. Hopefully you will find my videos a little interesting and perhaps fun to watch.
/ @jamesrcplanetech
Adding lead to airplanes always seemed counter productive to me. we all know lead airplanes don;t fly. I do everything I can to avoid adding lead to my planes. Well done James.
Thanks! Yes I agree. Do all you can to avoid adding unused weight that increases the wing loading. Moving things around my be trial and error but its worth it.
Well done James, great work.
Thanks!!
Very neat 😉👌 great work
Thanks!
Thanks I am working on a build now, Ill be sure to use you notch idea. Previously I have ether got servos stuck or made the ugly gap so mounting is not great.
Good luck, Im sure it will be great
I agree with the other guy about the lead.I don't put lead in my plane's either.Unless it is just completely unavoidable and with some planes, it is completely unavoidable light on war birds.You almost have to add weight.There's just no way around it due to the design of the plane. It's a stream.We couldn't trade that lead weight for battery weight.
Yup, I do what ever I can to not add weight. So hopefully this one will work out. This thing had a big roomy fuselage, so I hope I can push things back as far as I need to balance without adding lead
Do you think this plane's gonna make it before the end of the flying season?
Lol! Well Im in southern cal so good or bad, we don’t really have a season for anything.. i wish we did… but that being said, the build is getting closer. Next step video Im covering it with monokote. My goal with this one was to finish in less videos than my last which where each in the 40 range. Im at 25 on this one now, and hope I can complete in about 4 or 5 more. Making these videos slows the build time astronomically..
Dude you're not stupid don't call yourself stupid man you're better than that. If you were stupid you never would have been able to get one of these planes off the ground and fly it, much less build one on your own right? You are just new to this stuff and you don't know yet but you will figure it out just like the rest of us did.
Thanks, I appreciate it . I try hard not to sound like an “expert” or “know it all”.. Im happy to have learned a lot for viewer such as you and others. I got a razor plane because of one of your suggestions. And Its an awesome tool. Thanks
Them servos are way too heavy for this ,also tracing around servo is a hell of a lot easier
Instructions say if using a heavier engine like the 20 cc gas its recommended to put servos in the tail. They could be hidden with a compartment, which I’ll be doing for the ailerons.
I agree dave looks way out of place
302 it is the opposite of smart to make the tail heavier, by putting servos there.!!!!! 2334 and it looks Dum.
If you don’t like the idea there are other words to tell us that. I’d love to hear your reasoning but there’s no need to be rude.
I agree stupid
As mentioned in video, instructions recommend moving the servos to tail if using the heavier engine set up, such as the gas engine. We’ll see how it goes during the balancing stage.
There are other reasons to put the servos there and while I was never a big fan of the look it certainly is better looking than a chunk or lead to balance the plane. Lead is unneeded weight when you can use the servos instead. Having the servos close to the control surface also provides better precision due to the lack of flex in the push rod since it’s shorter.
This is also a very large plane, if the servos were mounted in the fuselage it would require very long push rods that would flex too much so it’s likely a push/pull system would be required which is not ideal if you can mount the servos in the tail.
Why say something negative about someone building a plane to plan.
Nicely put, I’m not a big fan of the look, and could have put them inside and used a plate to cover them. But since this is nondescript sport plane and not a scale , I went the route I did. All the things you mention are great reasons for shifting the servos back. And lots of bigger planes have them in the rear one way or another. Thanks