RC Glider Basics | CG and Dive Testing Your DLG

[@ArmSoar]

Do you guys do the dive test? And do you like a forward or neutral CG?

[@gt1man931]

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.

[@ArmSoar]

Thank you! They're such good servos... enjoy :D

[@adam.gibson]

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.

[@ArmSoar]

Glad to hear that! I hope it helps make trimming your models easier :)

[@archivist17]

Thanks Thomas. I didn't know what the dive test was before.

[@ArmSoar]

Glad to help, it's a good reference to point things in the right direction.

[@Ed-eq8ui]

Been flying for years - props, EDFs, scale etc. That's the clearest explanation I've heard of the dive CG test. Well done!

[@ArmSoar]

Thank you for the kind words!! Glad it is helpful and clear :)

[@banko444]

Fantastic description of something that can be a bit confusing to many. Well done.

[@ArmSoar]

We're here to simplify! :)

[@JosephConradJR]

Thomas. Excellent videos.

[@ArmSoar]

Thank you very much!

[@SecretSqurrl]

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?

[@ArmSoar]

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.

[@electricburning]

Hi thomas, can you make a video about mini dart 2? I'd like to hear your opinion about that model

[@ArmSoar]

It's a good model, especially for getting started in the world of DLGs.

[@hobbyshopcr2830]

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

[@afilos]

I've always wondered why it pulls down when tail heavy, now I know thanks to you!!!!!!!!!!!!!!!

[@ArmSoar]

Nono, pulls up in dive test when nose heavy. If tail heavy, it will push down in the dive test.

[@afilos]

@@ArmSoar yes that's what I wanted to say. Nice videos!

[@doversailplanes]

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?

[@ArmSoar]

That's a good idea, it's a bit controversial but an awesome topic.

[@AndrewNewton]

Very nice explanation thanks

[@ArmSoar]

You are welcome :)

[@ArthurRC]

Easy and well explained Thomas 👍🏻👍🏻👍🏻

[@ArmSoar]

Thank you!

[@capncharlie7894]

Nice video. Don't forget to buy KST servos.

[@tomekp6149]

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.

[@ArmSoar]

Good idea, we can do that!

[@tomekp6149]

@@ArmSoar great news, thank's! I'll follow your channel and wait for updates.

[@andysoars8139]

Thank you Thomas, can you please tell me where is a good starting point for the C of G on a BAMF II

[@ArmSoar]

I would start between 65-67mm and go from there.

[@andysoars8139]

@@ArmSoar Thanks Thomas.

[@axwoodyt]

Yes u reached 1k sub

[@ArmSoar]

🎉 we did it!!!!

[@daviddavids2884]

at 1:35, any 'dimension' for cg location should be perceived as a Percentage of Chord.!!! thirty percent is 'normal'.

[@ArmSoar]

All DLG manufacturers references their CG as a distance from the leading edge.

[@daviddavids2884]

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.

[@ArmSoar]

Are you flying DLGs?

[@daviddavids2884]

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.!!!