Shop our Airplanes Products Drone Products Sales
Thread Tools
Old Feb 24, 2005, 03:55 PM
ldammann is offline
Find More Posts by ldammann
Registered User
ldammann's Avatar
Thanks Rick

I used 2mm because when my LHS got its first order of Depron, there were 4 big sheets of 2mm used for packing protection. The owner asked me if I could use it or shoud he throw it away.

I did build him a 20" UB with some of it.

Where do you get 3mm blucor?

Lee
Sign up now
to remove ads between posts
Old Feb 24, 2005, 04:49 PM
colbyweb is offline
Find More Posts by colbyweb
Why aren't you out flyin?
colbyweb's Avatar
Quote:
Originally Posted by ldammann
Thanks Rick

I used 2mm because when my LHS got its first order of Depron, there were 4 big sheets of 2mm used for packing protection. The owner asked me if I could use it or shoud he throw it away.

I did build him a 20" UB with some of it.

Where do you get 3mm blucor?

Lee
I got some 2mm depron for free a couple of times too. When ordering from depronusa they often use 2mm depron as packing, but I haven't gotten full sheets like you did
No 3mm blucor. I went back and reviewed my post and I did not say anything about 3mm blucor. It's 3mm sheet that I sliced from a block of blue foam. It's stiffer than 2mm depron but not as stiff as 3mm depron. I made a gym-blu out of it but it was too flimsy to fly. I posted a pick of it in the gym-blu thread.
-Rick
Old Feb 24, 2005, 05:04 PM
ldammann is offline
Find More Posts by ldammann
Registered User
ldammann's Avatar
Oops. I reed good. .Sheet, not cor. Never mind
Old Feb 25, 2005, 08:32 AM
ldammann is offline
Find More Posts by ldammann
Registered User
ldammann's Avatar
Rick,

Very interesting the weight of 2mm vs 3mm. Must be a density thing. Guess I'll have to weight the stuff I have before I build.

Are you going to do a PDF of the finial plans?

When I print the dwg file here at work, there are extra lines all over the print. Even the writing starts and ends are connected. Must be someting between Auto CAD and ProE.

Lee
Last edited by ldammann; Feb 25, 2005 at 09:18 AM.
Old Feb 25, 2005, 10:51 AM
colbyweb is offline
Find More Posts by colbyweb
Why aren't you out flyin?
colbyweb's Avatar
Quote:
Originally Posted by ldammann
Rick,

Very interesting the weight of 2mm vs 3mm. Must be a density thing. Guess I'll have to weight the stuff I have before I build.

Are you going to do a PDF of the finial plans?

When I print the dwg file here at work, there are extra lines all over the print. Even the writing starts and ends are connected. Must be someting between Auto CAD and ProE.

Lee
I'm sure it's a density difference, no other explanation for it. I always weigh every single part I put on an airplane
I used to have that problem with my laser printer. Changing the printer driver fixed it.
Yes I'll make a pdf and tiled pdf, just haven't gotten to it yet.
-Rick
Old Sep 15, 2005, 11:48 AM
bbranham3 is offline
Find More Posts by bbranham3
Registered User
Cant really see in your picture but are you using 2 servos or just one. I assume 2 and then I would guess you have the radio set up for a v-tail?
Old Sep 15, 2005, 11:57 AM
colbyweb is offline
Find More Posts by colbyweb
Why aren't you out flyin?
colbyweb's Avatar
If I understand your question correctly, it -is- setup like a v-tail and it requires 2 servos to accomplish that.
-Rick
Old Sep 15, 2005, 12:33 PM
bbranham3 is offline
Find More Posts by bbranham3
Registered User
Thats what I thought

Thanks
Old Sep 17, 2005, 09:58 AM
frankyfly is offline
Find More Posts by frankyfly
Registered User
frankyfly's Avatar

Dihedral plus undercamber


A question for you guys.

I was cheking the plan but how do you hold the dihedral of the undercambered 3 mm depron wing of the Blu Gym X Bipe ?

Tips & Triks are welcome..


To keep it simple what if I use a stright wing (no dihedral) adding ailerons ad elevator only ?
Last edited by frankyfly; Sep 17, 2005 at 01:16 PM.
Old Sep 22, 2005, 12:27 PM
frankyfly is offline
Find More Posts by frankyfly
Registered User
frankyfly's Avatar

Modified Gym-Blu bipe


Assembling the aileron version....Gym-White
Old Sep 22, 2005, 02:21 PM
colbyweb is offline
Find More Posts by colbyweb
Why aren't you out flyin?
colbyweb's Avatar
Looks really good frankfly. Hope to hear a flight report soon. I never actually built one of these, just drew the plans. So tell me how did the parts fit?
-Rick
Old Sep 23, 2005, 01:00 PM
ldammann is offline
Find More Posts by ldammann
Registered User
ldammann's Avatar
Wow great, never thought I'd see this thread again.

frankfly

The dihedral is done just like the original gym blue (search). Once you heat temper the undercamber and cut the two ends to fit, it holds very well.

A friend built a non-dihedral, ailerons version, standard tail, just like yours. Flys great. You'll like it .

Lee
Old Sep 23, 2005, 03:36 PM
frankyfly is offline
Find More Posts by frankyfly
Registered User
frankyfly's Avatar
Hi Idammann,
How do you find the C/G of this bipe?
Any rule of thumb or any forum to refer to ?

This model has a "disposable" wing system (elastic band ligation). In a crash event you can unmount the fuse and go for a new pair of wings. A good thing I believe.

Francesco
Old Sep 24, 2005, 10:03 AM
ldammann is offline
Find More Posts by ldammann
Registered User
ldammann's Avatar
Quote:
Originally Posted by frankyfly
Hi Idammann,
How do you find the C/G of this bipe?
Any rule of thumb or any forum to refer to ?

This model has a "disposable" wing system (elastic band ligation). In a crash event you can unmount the fuse and go for a new pair of wings. A good thing I believe.

Francesco
I just set it 1/3 back on the top wing. Move it around to suit the flying style you want. In a small gym, I move it back a little and it harriers around very slow. Not sure on your aileron version. Move it around and find the sweet spot.

Can you get pics of the removable wing setup?

Thanks

Lee
Old Sep 24, 2005, 11:20 AM
frankyfly is offline
Find More Posts by frankyfly
Registered User
frankyfly's Avatar

Removable wing...


If these pictures can help better understanding....


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Gym-Blu Simple Indoor Lightweight Stick Plane Gene Bond Foamies (Scratchbuilt) 777 Mar 23, 2016 12:56 PM
Question Gym-Blu video clips amigo Foamies (Scratchbuilt) 15 Oct 04, 2006 11:01 AM