Control link geometry demo
ฝัง
- เผยแพร่เมื่อ 20 เม.ย. 2016
- Demonstrating the effect of servo arm angles and aileron control horn positioning. See links for further explanation of aileron differential and adverse yaw.
Adverse yaw by Samm Sheperd - • Adverse Yaw - Explaine...
Differential by Flite test - • Flite Test - Different...
I made this video because i couldn't visualise the effect in my mind. Needed to see it in action.
Newton Airlines blog - newtonairlines.blogspot.com.au
Website - anewton.net
Andrew Newton TH-cam - / @andrewnewton
Newton Airlines Uncut - / @newtonairlinesuncut - แนวปฏิบัติและการใช้ชีวิต
Andrew, you have given so much to this hobby over the years. I just want to say a big thank you for your efforts in educating and promoting this wonderful hobby. You are a gentleman and a great teacher. Cheers
Thanks Shane. I enjoy making videos and simplifying RC tech as much as possible
This is the best explanation I have ever seen until today. You are a mine of gold and a very talentuous video producer. Thanks a lot for all.
👍😃
+Philippe Leclercq Thanks Phillipe
Awesome rig you've made there! Thanks for sharing!
+Samm Sheperd (SNRS) Oops just a moment and I'll spell your name correctly. Thanks Samm
Great visulization, thanks for the video
This has got to be the best illustration I have seen yet!
this has to be the simplest/best explanation of this subject I have seen... GOOD JOB!!
+Jason Mundy Thanks Jason, I do like to simplify
There's nothing left to do than repeating the cheers of the pre-posters: Great Job! I've learned a lot.
+Tom Wolf Many thanks. I love to simplify
Brilliant and simple explanation without any stuttering or background music. Thanks Mr
Many thanks Bruno, I usually do um and ah and forget what I'm saying
That was a great demonstration. I especially like the demo of differential. Thanks for posting it.
Thank you so much for this and all your videos Andrew! No fuss, simple to understand, excellent video quality/presentations and all done in such a calm nice manner by a master modeller.
Outstanding sir and much appreciated.
Marc
Thanks Marc, I learned from the test myself
Excellent video demonstration and explanation. Thanks for sharing!
Very good demonstration! I have used trial and error to achieve this with some good results but this really clears it up to me! Thanks for making and sharing this! 👍
I know this video is old but has been helpful even to this day.
I still refer to it myself occasionally
Excellent demo. Thank you.
Exactly what I was looking for. Thanks!
Great to hear!
Best explanation I've seen regarding servos and linkages.
I now know why my FT Punjet wouldn't fly.
Looks like my control horns were mounted to far from the hinge line.
+Mark Ford Glad it helped Mark
Best demo on horns and servos I've seen. Thanks!
Many thanks, I learned a lot making this video
Brilliant! Please keep making videos like this, it's like a gold mine of info... Thanks Andrew👍
+simon ward Plenty more to come
Very clear explanation for a newbie like me. This kind of video inspire me to start this wonderful hobby. Thank you Andrew.
+Mario Scotellaro Sweet, glad it helps
Thanks Andrew
I always have to think through this effect but this makes it crystal clear
+Hans Leatherby I couldn't think it through, this rig made it clear
Why did somebody dislike this video?Its the best! Hats off.
Rewatching this video again. I'm setting up an NCFM bluto and I only need like 1/16 movement up and down so trying to figure out the correct holes so your video helped again.
Good to still be relevant after all these years :)
Great video Andrew! Really explains what's going on with these things visually! Wow!
+Albert Kim (marblekit) Thanks Albert. I had to do this for my own benefit. Couldn't work it out without actually seeing it, and I was surprised by some of the results.
+Andrew Newton Yes, visual aids are always very helpful. I'm sure a lot of other people will benefit. Thanks for sharing!
Just awesome. You have helped me probably more than anyone getting into this hobby. I'm getting huge satisfaction out of building and flying, especially scratch building. And videos like this and your other videos on your own a scratch builds are so useful and inspiring. My latest has a soft foam front inspired by the soft noses you put on some of your pushers. Let's see how she crashes!! ✈️ 💥
Cheers!
Great comment thanks Tim. It will crash goooood.
Awesome plantation of the dynamics, really appreciate it
Thanks, I learned from it
Great video Andrew! Amazing how small inconsistencies could have a dramatic impact on performance.
+Herbert Kojetin Interesting that there is so much more down aileron with top mounting
Brilliant visual aid, Andrew 👍 I love stuff like this
Me too, beats any verbal explanation
Such a great tutorial. A lightbulb went off over my head. I had that ah-ha moment. Thank you so much Sir.
+SnapPunch Robert Glad to hear it Robert.
I had not seen this video until now, this is very good information, thanks! Awesome vid.
Thanks Jorge, I am happy with this one
Thanks! This helped me a lot!
I am impressed. You are a real good teacher!
Thanks Hans, nice compliment
That was really useful information! Thanks Andrew
+MostlyHarmlessRC For me too
Man... Thanks a lot for your work. Much appreciated 👌
My pleasure!
Good demo. Thank you.
Thanks for watching!
Well presented. I think it’s good practice to optimise the mechanical setup rather than just relying on modern TX settings to adjust everything.
This was excellent, thumbs up!
Cheers, Bob
+TripleThreatRC Thanks Bob
Informative ..thanks
Excellent video as always! Thanks =)
Brilliant explanation
Glad it was helpful!
Thank You !!!!! Perfect model and Demo ! Very much appreciate your efforts. Carl Rohloff
Many thanks!
very clear and succinct, great job.
Thank you!
Thanks from a newbie to flying. Makes geometrical sense.
Glad it helped Ricky.
Wow, this is mind boggling to a new guy in the hobby-interesting non the less. But, good information, I was curious why my servos were not moving the control surfaces as much as I thought they should.
Very enlightening. thanks!
+28th St. Air Land & Sea It was for me too!
Fantastic
A few important points follow from your good video demo of geometry.
1) Torque - increases the shorter the servo arm
2) Resolution - increases with use of the full movement extent of the servo arm, including extended limits to 120%
3) Slop - introduced to the linkage by ill fitting pushrods, poor gear train manufacture and wear (particularly on metal gears)
Torque and resolution are maximized by having the shortest servo arm possible. In some cases it is necessary to drill a hole even closer to the servo than provided.
Slop is minimized with a longer servo arm. Excessive slop leads to poor resolution and flutter, particularly in ailerons.
Reverse differential is not uncommon on gliders.
Thanks Wayne. All good points for a more advanced demo video
brilliant, simple adjustment and those cheap transmitter works with almost any plane
Nice demo Andrew, wish I made it ;)
+SpeedsterDEN Thanks Soren, you have done plenty to inspire me.
+Andrew Newton I agree!
Thank you
You're welcome
I recently cut two halves of a wing with a Hotwire and I’m looking to add a 7 degree dihedral before joining the two halves. Do you have any advice on how to accurately cut this angle?
Howdy Andrew, I never did say thanks for making this video. I had wondered about the impact of the placement of the rods in the horns. Thanks!
Daft suggestion: Is it worth also considering the amount of torque that is gained by using a push rod nearer to the center of the servo & also the more "granular control" you get by being further out, rather than closer to the hinge point?
Matt
Thanks Matt. Yes torque and control resolution are definitely factors to be considered. More so on super light weight or radical fast models. I think you would be the expert on what's needed for control at speed, feel like doing a demo video?
Howdy Andrew, lol at high speed you need granularity! I recently this found out as I stalled the Teksumo coming out of a epic dive & trying to go straight back up again too quickly with high rates enabled :D
PS: I was thinking flaps on a glider!
good to know, thx for sharing
Green square, clever
Thanks
I really like your videos andrew
Thanks Chris.
Hmm, you can do both, I mean put control horn off the edge and servo arm angled back of the vertical (when they are on the top). Differentials should work against each other.
However putting control horn off and servo arm angled to the front is the worst case scenario :)
Thanks for posting this INFO!
+SladkaPritomnost Yes good point
i some times change things machinical instead with the radio is to get the maximum torch out of the servo to make them last longer
+Happy Flyer Must do a video on maximising torque and resolution
aiht cool like the way your explaining things slow & simple :D
100th Like :) Excellent video.
+Steve W Thanks for the centenary of likes
Hi, It’s a nice explanation but can u relate the Servo angle and the aileron deflection angle using a equation?!
That would take a mathematician, too complex for me.
awesome
sweet
Andrew Newton
all of your videos are of great content.
Brilliant - any relation to Sir Isaac ?
Hope so, must be
Hey sir. Why wouldnt you ever want reverse differential ? I use it for my dlgs...
Beyond my expertise. What do you use it for?
@@AndrewNewton its just(at least in my head at first and then I realized it actually gave me longer flight times in same conditions… I used pre programmed set ups to test it up.) Having it that way, will give ya more lift than decending forces It really works.
Ahahahaa, I forgot how this works and I only performed this a couple of months ago?
Early onset, Sheeesh??
Beauty Andino, stoked in Your Intel Mate.
Needed to make My Galloping Ghost turn harder as Me Peepers are fried like Me Brain and another Fly away would really ruin this unreal sheeeeeeee!
Sweet, hope it works
@@AndrewNewton Worked a Treat Thanks Andrew. Love My RC TH-camrs.
Beauty Mate.
PS: Hope Your move has been as easy.
This is a good explanation. What happens when you increase the length of control rod?
Length has to match the servo position to keep the aileron level
nice tutorial but your servo pivot and aileron pivot are not aligned. It should be straight towards the zero of the aileron diagram.
no need for a computer radio just have to remember my grade 7 geometry!
+Thomas Eggenberger There's Sin and Cos in there somewhere but I can't remember where.
+Andrew Newton I can't remember either, but that won't stop me!
close. you have the hinge point higher than the servo's output shaft. no plane with lay down servos is made like that!
Good info, but it's only half the story. You didn't mention anything regarding the torque of the servo or the speed, both of which need to be considered. Another factor is the size of the control surface. Maybe you plan to do a second video on this subject ?
+Mike Moore Trying to keep it simple Mike. One chapter at a time
+Andrew Newton Such deviously simple concept, plus if your control services don't need to move very far, with the right linkages you still get to use the whole throw of the servo, an can enjoy the 'increased resolution' ;-)
+Paul McAdams Yes good idea, I may do a demo on maximising resolution
im so fucking stupid my flying wing crashed bcoz i forgot basic geometry i wanted max throws so i connected rod in both outer hole
and for past 5 years i am doing same for getting max throwsssssss
Ooops, at least you know now. Happy flying
Fundamental mistake! Hinge is NOT inline with Servo Axis! In Skin
How would that affect the angles?
@@AndrewNewton It does. Hinge offset, in the skin, produces differential deflection.