Do ya think it will fly?
 

Found an article in Popular Science Cira 1955. They had it as a control line. I am trying to adapt it for RC. Not sure the rudder is large enough. The wing slats are 1" by 24" The first 4 slats are negative angle and the last three are positive. Probably be powered by either a .071 or OS 10. Should I entered it in the 3D competion? Hope the picture does it justice.

RE: Do ya think it will fly?
 

You need to shoot that article over to the ProBros!!!!! LOL I think you may have discovered their origins!!!!:D:D:D:D:D:D I bet Billy Hell could 3D it!!!:D:D:D:D

RE: Do ya think it will fly?
 

Its a small rudder im thinkign it will be VERY unstable becasue it looks to have no deheral and most rudder only planes need a fair bit to keep them stable but give it a shot or maybe add ail's?


Also are you planning on clear coating it or..?

Steven

RE: Do ya think it will fly?
 

looks like it will fly, It would probably make a good electric plane:D

RE: Do ya think it will fly?
 

Probably clear coat this one. If it flys then I might do something more radical on the next one.

RE: Do ya think it will fly?
 

flying freak is making a good point ,no dihefral will make it very difficult to turn expect just the tail to wag a bit with full rudder defelection ande hardly any bank.

RE: Do ya think it will fly?
 

Gee maybe I could put the OS-46 on it that way it may have enough speed to make the rudder effective. Really it is suppose to be a very slow flyer with the wing set up the way it is. Doesn't make any difference what the pitch of the plane is, there is alway a lifting slat. Ya right....

RE: Do ya think it will fly?
 

I have never done anything with a profile so I am not sure how to mount the servos and Rx, Use to fly the old Ringmaster CL many, many, years ago.

RE: Do ya think it will fly?
 

My guess is that it will not fly in this configuration. If you are using rudder and elevator for control, then at least five degrees dihedral is essential - not for stability but for roll control. Without dihedral a R/E plane will only sideslip.

You could certainly add ailerons but I would question their effectiveness of with the slat wing. It is a great experiment though and I applaud your efforts.

I might suggest adding some generous ailerons and enlarging the v-stab to about double it's area. Rudder control would be unnecessary and you could leave it off.

RE: Do ya think it will fly?
 

Or he could cut the trailing slat in half, mount the ends of on pivots and use a single micro servo to run them like ailerons. I would love to see a video of it flying when it's done. Really cool project![8D][8D][8D][8D]

RE: Do ya think it will fly?
 

Very cool! I've seen this design brought up before in the 1/2a forum. I think it was called the Venitian blinds flyer or something like that. Search that forum and you will find it and I'm sure the guys there would love to see your projext as well.

RE: Do ya think it will fly?
 

The rudder is going to see a wall of turbulent air. All those wings up ahead of it, each one producing a wake. Most wings produce the downwash localized by the single trailing edge. I'm guessing the highest TE will layer some turbulence onto the slat below it's wake, which will layer some turbulence onto the slat below's wake, which will... Or maybe not. Never seen tunnel tests of venetian blind wings.

I'm guessing that the thing will have some heavy drag.

Keep in mind that CL airplanes didn't depend on their rudders for yaw control. Ever seen any combat wings... none had rudders, nor needed them. And CL planes never used them dynamically. Well, except Al Rabe's designs. The carrier planes only flipped them one way and were interested more in a somewhat static result that included lots of drag.

RE: Do ya think it will fly?
 

Lots of difference in CL and RC reference rudder applications. My money is on dieFluggeister. If you are truly a rudder-only, then might as well as use a very Aft CG. It's only gonna' make one very short flight. [X(]

Add some ailerons and you just might have a real attention-getter. ;)

RE: Do ya think it will fly?
 

Hey Hossfly
Any idea how to add ailerons? I could post more pictures if that would help.

RE: Do ya think it will fly?
 

I like Al Lewis's idea of using the last slat as the aileron.

The plane has nice lines and is really 'clean' looking. An idea might be to embed a music wire in the leading edge of the last slat and brass bushings in the ends to allow each slat to pivot. You could embed a servo in the fuse under the wing with control horns running pushrods on each side of the fuse.

Edit: I might suggest using the full slat as the aileron as opposed to just a semi-span setup.

RE: Do ya think it will fly?
 

I will try that and post pictures as I go along. I fly 60's and 90's--what am I doing with a 1/2a. It looked so intresting that I could not refuse trying it. Actually it is a cute will fellow/gal not sure which.

RE: Do ya think it will fly?
 

What about using a V-Tail with a mixer.

RE: Do ya think it will fly?
 

Rudder/v-tail configurations will not work without dihedral. As previously stated, the dihedral is essential for roll control. Without dihedral, its anybody's guess which way the plane will roll when rudder is applied.

The easiest ailerons, IMHO, would be to convert the last slat to ailerons. Just split them in the middle and put torque rods in. Adding a leading edge to hinge it to might also help.

If you want to 3D it, you better double or triple the surface of the rudder. When hovering, the only air over the rudder is the propwash, and it will take a lot to generate the side forces you'll want for control.

Brad

RE: Do ya think it will fly?
 

Both Lewis and dieFluggeister offered good ideas. I would probably just add another slat hinged to the last current slat and mount a single servo topside to operate both ailerons. I'm a bit lazy!

Regardless of your progress I certainly hope you post your findings here. That is one cute machine.
As an OLD modeler in all disciplines, FF, CL, & RC, please let me say that I admire a person that branches out and tries new designs just to see what can happen. Best of luck to you.

RE: Do ya think it will fly?
 

RE: Do ya think it will fly?
 

Some how I screwed up trying to do a quote. What I was going to say: Hossfly sounds like a good idea, I think I will try that. Will send some pics.

RE: Do ya think it will fly?
 

Here it is with ailerons pinned on. Do you think this will work. If so, how and where do I mount the servo. I have never done anything with a profile other than many years ago with the CL Ringmaster. If you don't think it will work then I will scrap the project.

RE: Do ya think it will fly?
 

The ailerons look great. Don't quit now.

I'm thinking that you'll have to mount the aileron servos to the sides of the fuse, just like you will for the rudder. Just tuck them under the wing. It would be hard to use a single aileron servo and keep it looking nice.

Maybe drill a pair of square holes (maybe 3/16" ) through the fuse, like with a mortice cutter, and run two rails through the holes to mount the servos on.

I can't wait to see it done.

RE: Do ya think it will fly?
 

I suggest that you build a small box (or mabye one of the plastic boxes as a last resort) which is rather easy and mount just one servo on top of the wing along the next-to-last slat.

When I used to race Q-500, I laid the servo on its side in the wing, and at a slight angle to allow a pushrod to each horn. That worked then and should work for this project of yours. I still have a "Dodger" I use for sport with a Rossi .40 and it has that one servo arrangement which has lasted for the 5 years that I have been flying it.

If you use the side option, a plate of 1/16 ply with a couple 1/4" ply/hardwood arms reinforced with some triangle 1/16 ply triangles will make a good mount that can be screwed to the top of the wing slats. If you use ply for the arms apply a generous coat of thin CA along the ply and they will not split up. I use this for lots of servo mounting in wings, and special needs.

Yep, that is one cute machine.

RE: Do ya think it will fly?
 

Just reading along. Very interesting project. More power to ya. I went through about 10 Ringmasters myself with the help of my step-son, many years ago.
John