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abufletcher 02-22-2013 03:39 PM

RE: Eindecker EIII
 

ORIGINAL: CubCrafter
Under flight loads the elevator was not very responsive...
Bear in mind that if you have used a scale sized stab/elevator (which I believe was the plan) then the elevator response is simply not going to be like what you'd get on a BUSA-style model with its greatly enlarged stab/elevator. Also the elevator response will be even weaker since you don't have a leading edge dipping down as you would on a full-flying elevator. I'm still working out the balance on my 1/6 scale EIII with 100% scale outlines but it also seems to have fairly weak elevator response.

R/C Art 02-22-2013 07:02 PM

RE: Eindecker EIII
 


ORIGINAL: wildbills21

Hey Art and Paul,

Great looking airplanes, When do I get to build one of these.

Wild Bill
Hey there Wild Bill.......... When we get all the bugs worked out and Larry nails down all the production concerns........I'll let Larry fill you in on the exact release date, but I am thinking spring sometime.

By the way, my BUSA DR1 will be ready for action this season - looking forward to flying some sorties together!

Cheers,
Art

CubCrafter 02-22-2013 07:22 PM

RE: Eindecker EIII
 
1 Attachment(s)
Stab Update

Finished sheeting the stab that I already had framed up.
Put lightning holes in center section and sheeted with 3/32" balsa.
Hinged with large Robart point hinges.

This is much stiffer and resists twisting.

Now back to finishing hinging the ailerons and finishing up with the wings.

Wild Bill,

I will be releasing it sometime later this spring. Want to get good flight videos and have all of the bugs worked out first.
I am working hard to have the one that I am working on now finished for a large indoor show and swap shop that we have here in Columbus on March 16th.
Kind of a coming out party.

Larry

abufletcher 02-22-2013 07:41 PM

RE: Eindecker EIII
 
Larry, while that looks like a great "fix" it just doesn't seem like satisfying design solution for a WWI model. Fully sheeted tail surfaces? That's just so...well...WW2. ;) Particularly, for a (light) fabric covered model where all the other structure is readily visible in flight. No PC10 or lozenge to hide such tricks on an EIII. Could you perhaps use CF rod (or tube) for both the stab LE and TE and or cross-bracing between the ribs as seen on the Mick Reeves wing designs?

CubCrafter 02-22-2013 08:21 PM

RE: Eindecker EIII
 
Abufletcher,

I know what your saying, but this is made to be a fun scale plane and I may yet still add some cap strips to simulate ribs with the Solartex fabric covering.

The next two projects are going to be competition planes with little or no compromises.
These will be my new "Top Gun" quality models to replace the Super Cub that I have been flying in that event and others.

40% Ryan STA from factory plans. ( Done as YPT-16A at the Air Force Museum)
Half scale Nieuport 17 from the Rosenthal and Hardesty drawings.

Come summer I want to be flying the Eindecker at events, selling Eindecker kits and finishing up the drawings for these two new projects.


Larry

wildbills21 02-22-2013 10:17 PM

RE: Eindecker EIII
 
Art and Larry,

I can guarauntee that I will build one of these when it becomes available, I have always loved the Eindecker. Yes me too Art, am looking forward to flying sorties too. I flew last weekend, 1/4 scale Pup with skis on. It was like 12 degrees, wind blowin like 10 mph, windchill like -10 but still fun.

Wild Bill

R/C Art 02-23-2013 05:37 AM

RE: Eindecker EIII
 


ORIGINAL: abufletcher


ORIGINAL: CubCrafter
Under flight loads the elevator was not very responsive...
Bear in mind that if you have used a scale sized stab/elevator (which I believe was the plan) then the elevator response is simply not going to be like what you'd get on a BUSA-style model with its greatly enlarged stab/elevator. Also the elevator response will be even weaker since you don't have a leading edge dipping down as you would on a full-flying elevator........
Don, I can't agree with that premise - the overall size of the tail feathers controls whether the airframe flys in a steady, stable stance relative to the direction of flight (it keeps it from wobbling or skidding).

Elevator response is related to how much of the stab is allocated to the elevator. Yes, a full flying stab is more effective than a conventional elevator, but a coventional stab/elevator will still control pitch - even if the overall size of the stab/elevator is too small.

my two cents worth......

abufletcher 02-23-2013 06:51 AM

RE: Eindecker EIII
 
...

R/C Art 02-23-2013 07:29 AM

RE: Eindecker EIII
 
maybe....

R/C Art 02-24-2013 06:11 AM

RE: Eindecker EIII
 
1 Attachment(s)


ORIGINAL: R/C Art

I will modify my airframe slightly to allow functional wing wires to be attached.

I will also modify my stab to Larry's recommendations or build a new one with these design perameters included reducing the overall weight of the current stab.

This is the fun part of designing/building and then test flying and then ''tweaking'' to get the best overall flight out of the model.

I am looking forward to getting mine airborn!

OK, the mods are underway!

I removed the laminate which was orignally glued to the spars (front & back) in the bays where the wing wires would be attached and in their place epoxied 3/32" aircraft plywood sheer webs. As I stated earlier in the thread, anytime I drill into or through the spars to attach anything, this is the process that I use.

wphilb 02-24-2013 04:50 PM

RE: Eindecker EIII
 
I look forward to this being available as a kit, if it is true to scale outlines, I'd be interested in a plan for full flying surfaces, would be a really neat plane.<div>
</div><div>Whit </div>

CubCrafter 02-24-2013 07:49 PM

RE: Eindecker EIII
 
1 Attachment(s)
Spent the weekend working on the right wing panel.

Some small design changes to the aileron and now it is all hinged.
I can remove the screws from the top of the aileron and it is removable.

Used large dubro hinges and they are screwed into the top of the spar with a cap strip over top.

The control horn rib can be glued in place when it is time to cover,

Larry

R/C Art 02-24-2013 08:10 PM

RE: Eindecker EIII
 
1 Attachment(s)


ORIGINAL: wphilb

I look forward to this being available as a kit, if it is true to scale outlines, I'd be interested in a plan for full flying surfaces, would be a really neat plane.<div>
</div><div>Whit </div>

You are right! It would be a very interesting plane with wing warping and a full flying stab and rudder.

Here's a shot of my third scale EI from a couple of years ago.....it had wing warping and a full flying tail.

R/C Art 02-24-2013 08:12 PM

RE: Eindecker EIII
 
1 Attachment(s)
Progress report......

added some 1/8" balsa top and bottom to the wing tips before I glue them to the wing.

Also cut some lightening holes in my aileron tips.

Nieuport nut 02-25-2013 05:19 AM

RE: Eindecker EIII
 


ORIGINAL: R/C Art

Here's a shot of my third scale EI from a couple of years ago.....it had wing warping and a full flying tail.
What's that coming out of the cockpit? Is he going fishing!!!???:D

Martin

Tmoth4 02-25-2013 02:23 PM

RE: Eindecker EIII
 
1 Attachment(s)


ORIGINAL: Nieuport nut

What's that coming out of the cockpit? Is he going fishing!!!???:D

Martin
That's funny!:D

Here you go, Art...sans fishing pole, thanks to Photoshop!


Jim

R/C Art 02-25-2013 08:47 PM

RE: Eindecker EIII
 


ORIGINAL: wildbills21

Art and Larry,

I can guarauntee that I will build one of these when it becomes available, I have always loved the Eindecker. Yes me too Art, am looking forward to flying sorties too. I flew last weekend, 1/4 scale Pup with skis on. It was like 12 degrees, wind blowin like 10 mph, windchill like -10 but still fun.

Wild Bill

Hey WildBill

All I can think is that you must be a lot younger.........all that cold takes the fun out of it for me.

Art

Horsepoweraviation 02-26-2013 05:04 PM

RE: Eindecker EIII
 
1 Attachment(s)
I had a couplle of days to fix the suggested adjustments and now that they are done I am anble to do some paint and bling....




HPA




Next test flight this weekend! I will have a Go PRO mounted because we are going to put the Eiii thru its paces!:)

CubCrafter 02-26-2013 06:35 PM

RE: Eindecker EIII
 
I'm afraid to ask what a Go Pro is.

Larry

scatolina 02-27-2013 12:29 AM

RE: Eindecker EIII
 
Subscribed<div>I want this kit</div>

R/C Art 02-27-2013 04:07 AM

RE: Eindecker EIII
 





Next test flight this weekend! I will have a Go PRO mounted because we are going to put the Eiii thru its paces!:)
[/quote]

Paul.......starting to look like an airplane now.......your metal work has breathed like into the Beast!
I just checked this morning's weather forecast and it is not supposed to get above freezing this weekend - high of 30 on Sat and 32 on Sun - brrrrrrrr

Larry - GoPro is an on board video camera - if it gets exciting, we will have a bird's eye view of the carnage!

Lucky Dog 02-27-2013 11:02 AM

RE: Eindecker EIII
 


ORIGINAL: CubCrafter

I'm afraid to ask what a Go Pro is.

Larry
It's a very cool , ultra compact, HD digital video camera.

CubCrafter 02-27-2013 11:08 AM

RE: Eindecker EIII
 
Thought it might be his nickname for a DA 150.

Larry

chris923 02-27-2013 11:40 AM

RE: Eindecker EIII
 


ORIGINAL: CubCrafter

I'm afraid to ask what a Go Pro is.

Larry
Go Pro is a small digital camera that takes Pictures and Video. The camera is commonly mounted an, Quadcopter, Airplanes, Helis, Helmets ( skiers), car ect. The video can easily be download to youtube.

The image quality is excellent.

The up shot is, you can record any thing, even maidian flights of EIII's.

Chris923

R/C Art 02-27-2013 07:50 PM

RE: Eindecker EIII
 
1 Attachment(s)
Step by step, little by little.......that is the way to get a project completed. Even if you are tired or running low on artistic juices, this process works!

Hey Larry, you did know that I am a slow builder, right?

The wing tip edges have been reinforced and glued on and gussetts added to strengthen the tip for when I gouge it into the gound - oh wait a minute.......the never happens, does it?

Next up the ailerons need to be fitted and hinged, servos installed, push rods cut and fit, aileron horn installed, wing tube installed......and the list goes on. The more I get accomplished, the more I find I need to do.......

Horsepoweraviation 02-28-2013 04:54 AM

RE: Eindecker EIII
 
1 Attachment(s)
SGT Carter has a message for you ...........



MOVE IT! MOVE IT! MOVE IT! C'ON PLYLE... YOUR FALLIN BEHIND!


HPA



Greg and Mike knows what I'm talking about!:)
(tv buffs..)


geezeraviation 02-28-2013 06:16 AM

RE: Eindecker EIII
 
Yeah Art, the way it works is when you are 90% done you only have about 60% to go.
Doc

Horsepoweraviation 02-28-2013 07:43 AM

RE: Eindecker EIII
 

ORIGINAL: CubCrafter

Thought it might be his nickname for a DA 150.

Larry

If you see me use the term..."mouse motor"[8D][8D] ................then think DA150:D:D

HPA

metaldriver 02-28-2013 03:57 PM

RE: Eindecker EIII
 
Wiat a minute Paul, Art is no where near as tall as Gomer. And quite a bit smarter I do believe

R/C Art 02-28-2013 08:22 PM

RE: Eindecker EIII
 
Turtle Report


The turtle is alive and well and has reglued all the joints in the wings with carpenter's glue......I used mostly CA initially when framing them up and as time passes and I keep handling, sanding, bumping (dare I say dropping?) the wings I hear a lot of cracking and joint movement type of sounds.
This is the first time I have used this type of plywood and CA together and I am finding that carpenter's glue is the better choice over CA.

Now all the wing joints are sound and secure.

Signed,
The Turtle

R/C Art 03-02-2013 04:38 PM

RE: Eindecker EIII
 
1 Attachment(s)
Turtle Report

I finally got the ailerons hinged........I HATE [:@] hinges! [:'(] When I get to a part of the build that I don't like I tend to procrastinate.....:eek:[:-]:eek: and, uh, er, well that's the reason for the turtle reports.

Just for kicks, I checked to see how much movement the design allowed - WOW - an easy 2.5 inches up and down.

I'll probably leave that much up travel and put in maybe a half to 3/4 of an inch down.......a big flat bottomed wing rolls better with a good amount of differential dialed in to the ailerons.

errorerroeerroeoeoeroeorerreor with loading the pictures [:@][:@][:@][:@][:@][:@]

wphilb 03-02-2013 05:32 PM

RE: Eindecker EIII
 
I just loaded some pics to the Moki main thread. I updated my RCSB airplane build thread with photos reduced by Photo Razor, I then copied and pasted the whole thing into the RCU fast reply box and it worked to my surprise!<div>
</div><div>Whit</div>

Horsepoweraviation 03-04-2013 11:09 AM

RE: Eindecker EIII
 
1 Attachment(s)
Hey Art!


Even turtles can be "Super Heros!"










Kinda looks alittle like our buddy "Greg Emerick"

Horsepoweraviation 03-04-2013 11:16 AM

RE: Eindecker EIII
 
1 Attachment(s)
Here are some pics of the EIII going up this Saturday.
We will have alot of pics and video..........

Maybe Art will stop by and we can get him on the sticks...........

Tmoth4 03-04-2013 01:28 PM

RE: Eindecker EIII
 


ORIGINAL: Horsepoweraviation

Here are some pics of the EIII going up this Saturday.
We will have alot of pics and video..........

Maybe Art will stop by and we can get him on the sticks...........
Wow![X(] you've been working like a maniac on this![:-]

Jim

R/C Art 03-04-2013 03:00 PM

RE: Eindecker EIII
 


ORIGINAL: Horsepoweraviation

Hey Art!


Even turtles can be ''Super Heros!''


I think it might be Greg.....I'm pretty sure he had jammies like that!









Kinda looks alittle like our buddy ''Greg Emerick''

R/C Art 03-04-2013 03:19 PM

RE: Eindecker EIII
 
1 Attachment(s)
Turtle Report

I modified the ailerons. I cut away the built in control horns, laid in a/c ply and will use conventional control horns.

The reasons were two fold - first I thought that the original horn was a little weak (easily bent to the side) and second, I just know that somewhere down the line I would break the horn loading the wings into the van........I have done things like that before.

So now when that happens, I can just unscrew the broken horn and replace it with a new one.

R/C Art 03-04-2013 03:35 PM

RE: Eindecker EIII
 
1 Attachment(s)
Over the weekend I also checked the incidence on the stab and wings.

First I plugged the wings in.....then I slid the anti rotation pins in place - this is the first time I have done this.

The Robart incidence meter read right at 2 degrees positive. The wing is a big flat bottomed wing with a raised leading ledge.....it raises gently from the front spar to the leading edge.

By design, the flat bottom is located parallel to the longerons - or to put it another way, it is zero degrees. The raised leading edge gives the wing an overall positive incidence relative to the stab. The firewall is also set at zero degrees. When I mount my engine I will probably give it a little bit of right thrust - maybe 1 to 2 degrees and a little down thrust, again 1 or 2 degrees.

abufletcher 03-04-2013 05:20 PM

RE: Eindecker EIII
 
Are both the flying wires AND the landing wires supposed to be functional? I ask because if the landing wires are also to be functional (or at least semi-functional) then I wonder whether using ply for the top pylon is sufficient. I certainly wouldn't trust it. At the very least, I'd want to sandwich a piece of music wire between the ply parts.

But, otherwise, it's looking very good indeed. I almost (almost) don't notice the "split" rudder. It would be nice though if the wing roots had a scale "notch" in them, however, to allow for the proper shape cowl cheeks.

Horsepoweraviation 03-04-2013 06:21 PM

RE: Eindecker EIII
 

ORIGINAL: abufletcher

Are both the flying wires AND the landing wires supposed to be functional? I ask because if the landing wires are also to be functional (or at least semi-functional) then I wonder whether using ply for the top pylon is sufficient. I certainly wouldn't trust it. At the very least, I'd want to sandwich a piece of music wire between the ply parts.

But, otherwise, it's looking very good indeed. I almost (almost) don't notice the ''split'' rudder. It would be nice though if the wing roots had a scale ''notch'' in them, however, to allow for the proper shape cowl cheeks.

Abu,
The flying wires are semi-funtional, they were put on to keep the wings from twisting.
The 4 cables were installed to the plywoood "A" post to keep it from a twisting load.......it is plenty strong.
I certianly trust it and we will put it thru the paces Saturday and I'm sure it will be fine.

Cheers,
HPA


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