RC Glider Basics | CG and Dive Testing Your DLG
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- Опубліковано 7 лип 2024
- What is CG? Why is the centre of gravity important for your RC plane or glider? Is it better to have a forward CG or neutral CG, and what does that mean? What is the Dive Test for your DLG? Let's take a look.
ArmSoar: www.armsoar.com
ArmSoar USA: www.armsoarusa.com
BAMF 2 DLG (Kit): bit.ly/bamf2dlg
Deviant DLG (Kit): bit.ly/dev1m
Deviant DLG (Receiver-Ready): bit.ly/rrdeviant
My ultimate tool guide for DLGs: bit.ly/dlgtools
Resources / What I Use
KST X06 Servo (International): bit.ly/3v6xAr6
KST X06 Servo (Canada & USA): bit.ly/x06usa
KST X08 v5 Servo (International): bit.ly/kstx08v5
KST X08 v5 Servo (Canada & USA): bit.ly/kstx08v5usa
Wire For Pull Strings: amzn.to/3eykaO7
Crimps For Pull Strings: amzn.to/2QbSLta
5mm Gap Seal Tape: amzn.to/3v1d3UE
Kapton Tape: amzn.to/2QjwSIf
Spektrum AR410 Receiver: amzn.to/3n3BhLr
Spektrum iX20 Radio: amzn.to/3dwPcq5
FrSky GR6 Receiver: bit.ly/frskygr6
FrSky R6 Receiver: bit.ly/frskyr6
FrSky X-Lite Pro Radio: amzn.to/3nMYtxY
I hope you find that useful! Just so you know, ArmSoar may collect a small share of sales from the Amazon links on this page. It does not increase your price but helps us keep making good content! - Навчання та стиль
Do you guys do the dive test? And do you like a forward or neutral CG?
Ha, servo ad. You got me already. I just received 4 of the 06s and a pair of the 08s. They are some beautiful little units.
Thank you! They're such good servos... enjoy :D
You explained things with dive mode CG testing that I partially knew but never fully understood as it seemed there was some magic with it. It is very clear now. Thanks.
Glad to hear that! I hope it helps make trimming your models easier :)
Thanks Thomas. I didn't know what the dive test was before.
Glad to help, it's a good reference to point things in the right direction.
Been flying for years - props, EDFs, scale etc. That's the clearest explanation I've heard of the dive CG test. Well done!
Thank you for the kind words!! Glad it is helpful and clear :)
Nice video. Don't forget to buy KST servos.
Fantastic description of something that can be a bit confusing to many. Well done.
We're here to simplify! :)
Easy and well explained Thomas 👍🏻👍🏻👍🏻
Thank you!
Thomas. Excellent videos.
Thank you very much!
Very nice explanation thanks
You are welcome :)
I've always wondered why it pulls down when tail heavy, now I know thanks to you!!!!!!!!!!!!!!!
Nono, pulls up in dive test when nose heavy. If tail heavy, it will push down in the dive test.
@@ArmSoar yes that's what I wanted to say. Nice videos!
Another good video 👍 Nice transition to the servo advert Thomas, silky smooth. I’d love to see way the glider tells or signs a thermal please?
Got to keep the ads running to pay for the channel! Haha :)
I think that's a great idea, I'll slot that in for an upcoming episode.
Hi Thomas! Great video!
You could probably do an actual tutorial for balancing your dlg
Also, I'm kind of lost on how to maintain cg placement when switching your batery during a long session, since pretty much all the batteries are different and every time you swap them you have a slight change on them
Hi thomas, can you make a video about mini dart 2?
I'd like to hear your opinion about that model
It's a good model, especially for getting started in the world of DLGs.
One topic i would like to see you talk about in a future video is turning in a thermal. I’m coming from flying RES ships. My instinct on a DLG is to primarily turn with rudder, with a little up elevator to keep the turn, and some opposite aileron to maintain the desired bank angle. But I know some people prefer to turn with ailerons into the turn and “bank and yank”. Coming from RES I rely on rudder a lot (of course) but what is the correct way?
That's a good idea, it's a bit controversial but an awesome topic.
Hello! Great video, thanks! I know the basic rules of dive test, but I don't have point of reference if the result I got is well or not. Maybe could you make a practise video from the field, which show correct result of dive test? Possibly if you can and have enaugh time, also result of forward and backward CG.
Good idea, we can do that!
@@ArmSoar great news, thank's! I'll follow your channel and wait for updates.
Yes u reached 1k sub
🎉 we did it!!!!
Thank you Thomas, can you please tell me where is a good starting point for the C of G on a BAMF II
I would start between 65-67mm and go from there.
@@ArmSoar Thanks Thomas.
at 1:35, any 'dimension' for cg location should be perceived as a Percentage of Chord.!!! thirty percent is 'normal'.
All DLG manufacturers references their CG as a distance from the leading edge.
at 5:32, you need to understand that (actual) tail-heaviness is an airframe's distribution of mass (dom). thus, referring to tail-heaviness in a discussion of cg, is problematic.
Are you flying DLGs?
at 4:54, there is NO neutral point, in the context of cg.!!!!! a cg is either located (normally) at thirty percent of chord, or it ISN'T.! if not, then it's forward or aft of normal. if it's aft of thirty percent/normal, then a Crash should be expected.!!!