nnDLG
- Thread starter nerdnic
- Start date
rcspaceflight
creator of virtual planes
I started following this thread again. You inspire Nic. I think I might have to re-try designing my own DLG.
I haven't flown anything in a year or two and throwing a DLG in the air seems like a great way to get back into the hobby. Especially since I quit the hobby due to funds. Making a cheap DLG sounds perfect. If not frustrating. But my life = frustration.
I haven't flown anything in a year or two and throwing a DLG in the air seems like a great way to get back into the hobby. Especially since I quit the hobby due to funds. Making a cheap DLG sounds perfect. If not frustrating. But my life = frustration.
rcspaceflight, now that's a name I haven't heard in a long time...
Hey man good to see you post again
It warms my heart to know I can inspire others, so thank you for sharing that with me!I agree that a scratch dlg is a cheap and frustrating way to get back into the hobby, haha. I don't get discouraged much from crashes or failures so it's been a fun ride so far. This project will be the highest personal satisfaction/achievement for me. After all, it still stands that a quality performance foam board DLG just doesn't exist. It's exciting to try and change that!
Mac82
Foam scraps? I got plenty
I had to add a a small retecangle to you're nose block so it would align properly for me
And another secure the servo.
I didn't see anything in you're plans for it. Also because I don't have any push rods long enough so I'll be sttting up the elevator with a pull pull
It wasn't clear how you wanted the tail feathers mounted so I made an additional slot in the vertical fin and placed the h- stab. Right at the very back of the vertical.
I ended up not having a third arrow shaft but I did have a two peace carbon spar from an old crashes plane. It worked out great before I set it in place with epoxi I was able to make sure the tail feathers where as close to perfictly level as u could .
Next step ailarons and the controle wires
One final note
This bird balances right on the ali servos. Good job on the design nic
And another secure the servo.
I didn't see anything in you're plans for it. Also because I don't have any push rods long enough so I'll be sttting up the elevator with a pull pull
It wasn't clear how you wanted the tail feathers mounted so I made an additional slot in the vertical fin and placed the h- stab. Right at the very back of the vertical.
I ended up not having a third arrow shaft but I did have a two peace carbon spar from an old crashes plane. It worked out great before I set it in place with epoxi I was able to make sure the tail feathers where as close to perfictly level as u could .
Next step ailarons and the controle wires
One final note
This bird balances right on the ali servos. Good job on the design nic
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Mac82
Foam scraps? I got plenty
I have to post again.
Took her out for a test glide no controls connected. O M F'ing G!!!! Gave it a nice toss no wind strate and level just beautiful!
Put some heavy duty tape on the bottom guys.
I'll try to get a flight video up once its painted and the weather clears up were expecting a lot of rain coming to south fl. And a huracane by Sunday.
Took her out for a test glide no controls connected. O M F'ing G!!!! Gave it a nice toss no wind strate and level just beautiful!
Put some heavy duty tape on the bottom guys.
I'll try to get a flight video up once its painted and the weather clears up were expecting a lot of rain coming to south fl. And a huracane by Sunday.
TexMechsRobot
Posted a thousand or more times
Excited!! This will probably be my first DLG so I can't wait to get started on it!
Your build came out awesome man! I'm also stoked to hear it glided well for you. Can't wait to hear future updates! What as your AUW?
I didn't add details about the tail feathers yet because the design is still a bit in the air. I know though that the original design I had for the hstab wasn't going to work. It used to have a little riser piece so the elevator could travel down like a traditional DLG but this was a very weak point in the foam board design. Removing that was necessary.
As of now I have the hstab sitting at the end of the boom and the vstab is either going to notch into the arrow in front of the hstab or ????? Not sure yet.
However, I have to be honest with you, the way you installed your stabs will fail. I haven't tested it in that arrangement before but the amount of stress on your vstab is very great during launch. The extra stress of having the hstab connected to it will make this even more great. Maybe add packing tape to the vstab now to try and give it some more support.
The good news is that if your stabs fail it's a pretty easy fix.
I didn't add details about the tail feathers yet because the design is still a bit in the air. I know though that the original design I had for the hstab wasn't going to work. It used to have a little riser piece so the elevator could travel down like a traditional DLG but this was a very weak point in the foam board design. Removing that was necessary.
As of now I have the hstab sitting at the end of the boom and the vstab is either going to notch into the arrow in front of the hstab or ????? Not sure yet.
However, I have to be honest with you, the way you installed your stabs will fail. I haven't tested it in that arrangement before but the amount of stress on your vstab is very great during launch. The extra stress of having the hstab connected to it will make this even more great. Maybe add packing tape to the vstab now to try and give it some more support.
The good news is that if your stabs fail it's a pretty easy fix.
Mac82
Foam scraps? I got plenty
If the tail fails then I'll just build another and keep testing, maybe I'll test it out with a V tail no mixing just elevator control .
I have reinforced the fins with the tape already and the joints where the fuse meets the wing.
AUW as of now is 380 g.
Its heavy. But onst I can get a slightly smaller battery (2cell 1000mah currently in the plane.)and a proper BEC I think I can bring it down to 200 ish g.
I have reinforced the fins with the tape already and the joints where the fuse meets the wing.
AUW as of now is 380 g.
Its heavy. But onst I can get a slightly smaller battery (2cell 1000mah currently in the plane.)and a proper BEC I think I can bring it down to 200 ish g.
TexMechsRobot
Posted a thousand or more times
Mac82, what is the purpose of your BEC? I'm trying to figure out RC plane electronics and am having trouble. What would be the benefit of running a 2s and BEC versus a 1s and step up voltage board in the DLG? Wouldn't the 2s/BEC combo weight more than the 1s/VSU combo?
FYI: For the speeds and loads required on a DLG, 2S regulated or boosted 1S is not necessary. I flew a straight 1000mAh 1S round cell in my full carbon Zen - worked like a dream. Bonus; lower voltage means lower power draw means your battery lasts even longer. Like, weeks, depending on how often you fly.
Go straight 1S and ditch all the other claptrap.
Go straight 1S and ditch all the other claptrap.
TexMechsRobot
Posted a thousand or more times
FYI: For the speeds and loads required on a DLG, 2S regulated or boosted 1S is not necessary. I flew a straight 1000mAh 1S round cell in my full carbon Zen - worked like a dream. Bonus; lower voltage means lower power draw means your battery lasts even longer. Like, weeks, depending on how often you fly.
Go straight 1S and ditch all the other claptrap.
I've heard that from Crafty Dan as well
Thanks!
Mac82
Foam scraps? I got plenty
Well I'd like to have the bec so Ivan keep longer flights without having to change batterys and the 2 cell gives tbedlg perfect ballast it balances beautifully with it.
Running anything more than 5v will fry the receiver and servos and a 1cell is 3.7 v I may go to a 1cell I have to order some but for now I'm using what I have on hand.
Also explain VSU I'm not keen on a lot of abreactions they always excape my memory
Running anything more than 5v will fry the receiver and servos and a 1cell is 3.7 v I may go to a 1cell I have to order some but for now I'm using what I have on hand.
Also explain VSU I'm not keen on a lot of abreactions they always excape my memory
A fully charged 1S will be just shy of 4.2V, and with such light draw from the servos on a DLG, you won't see the voltage drop below 4V for several flights. More than enough juice.
TexMechsRobot
Posted a thousand or more times
VSU = voltage step up. Takes low voltage in and outputs high voltage at the cost of amps.
Ah okay so that's why you're at 380g. I've not run that much weight in the nose so I will definitely be curious how it holds up during your throws
