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Feb 19, 2007, 03:23 PM
Retired CAD guy
birdofplay's Avatar
Now all we need is a kewel $10,000 for those engines ! @ ~$5k ea
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Mar 01, 2007, 01:56 PM
Will work for foam
wingnutt's Avatar
Just an idea, not acutally built. found this in the HLG forum. add a J250 for a warmliner, IPS for culdesac sundays or medusa for too-small-to-see-3-sec-after-launch.

https://www.rcgroups.com/forums/showthread.php?t=255154

Heck, build it with a KF and fly today.
Mar 01, 2007, 03:29 PM
Retired CAD guy
birdofplay's Avatar
HOwz about an oldie !

Like the Horten III

Curently this is designed for ~ 2M span

I have it in CAD, ( obviously ) and willing to share parts and design ideas.
I dont think I'm going to have time to build it soon.

I envision either a balsa spar or foam spar with ribs attached prior to
sheeting. Also Some Kevlar Thread bonded to the spar spanwise and
cross-cross between ribs
Nice FAT rib section for slow hight lift floating. It's a GOE 741.
Thicker is stronger IMHO .

I expect a weight of less than 20 oz depending on motor, battery
and technique.
Last edited by birdofplay; Mar 01, 2007 at 03:40 PM.
Mar 16, 2007, 08:36 PM
Steve
Here is one I have been working on. It's made from EPP, with a Kline-Fogleman airfoil.
I dont have the motor or pod on it yet, But it has made it through the glide tests and I am very impressed.
Steve
Jul 07, 2007, 09:02 PM
Registered User

KF airfoil glider


Hey Steve,
I would realy like to see more of your black and white glider. Love the wing planform. and am interested in the KF airfoil. Did you embed spars in the wing? Did you get around to putting an electric motor on it. If so how well did it fly?

Tell us more, Please
Jul 11, 2007, 12:38 PM
Multi discipline RC'er
MrHmmm's Avatar

Anotherone


Here to join the fun! Made this glider from scratch. All 3mm and 6mm depron. The first version had a longer nose and a smaller cd-motor. It was a bit underpowered and had some CG problems. So I modified the plane a bit by shortening the nose and adding a bigger motor with a bigger prop (8x4"). Yet to be re-maidened. Nice to see some other gliders!

Clark Z profile, carbon spar 8 ribs.
span 1,10 m
custom cd-motor
1500 mAh 2s lipo
310 grammes total
Elevator/rudder control
Jul 11, 2007, 02:43 PM
Registered User
critterhunter's Avatar
Quote:
Originally Posted by MrHmmm
Here to join the fun! Made this glider from scratch. All 3mm and 6mm depron. The first version had a longer nose and a smaller cd-motor. It was a bit underpowered and had some CG problems. So I modified the plane a bit by shortening the nose and adding a bigger motor with a bigger prop (8x4"). Yet to be re-maidened. Nice to see some other gliders!

Clark Z profile, carbon spar 8 ribs.
span 1,10 m
custom cd-motor
1500 mAh 2s lipo
310 grammes total
Elevator/rudder control
Hey, now that one is cool looking. I'm in the early stages of checking out scratch built foam glider platforms myself, since that will be my next project after I finish the four or five planes that are ahead of it...all done in EPP white "box foam", which I'll use for this one as well. Do you have any free build plans for this bird you can link me to, or at least one of similar look?
Jul 12, 2007, 02:47 AM
Multi discipline RC'er
MrHmmm's Avatar
Critterhunter... I don't have plans, it was created from scratch and made it up while building, I can give you some measurements and detailed photo's if you like?
Jul 12, 2007, 07:05 AM
AMA 42867
callmeishmael's Avatar
Quote:
Originally Posted by MrHmmm
Critterhunter... I don't have plans, it was created from scratch and made it up while building, I can give you some measurements and detailed photo's if you like?
I'd sure appreciate it!
Jul 12, 2007, 07:21 AM
Registered User

plans


Quote:
Originally Posted by callmeishmael
I'd sure appreciate it!
I am going out on a limb here, but, I think we all would appreciate it. That is a really nice looking glider.

Karl
Jul 12, 2007, 10:21 AM
Registered User
critterhunter's Avatar
Yea, me too! Fire up the yardstick and throw us some numbers!
Jul 12, 2007, 02:49 PM
registered foam addict
chara's Avatar
Thread OP
wow! these are some really nice looking birds!
congratulations to the nice designs! wouldn't mind to see some more detail shots and as well having some plans for them ...just in case my build list runs short of entries..

here is a short update on my MOSE-02 project (pics attached).
i was able to take a test flight a while back. it glided forever! but directional control was lousy. rudder area was too small. unfortunately the wind was pretty strong that day and it went out of control after being hit by severe gusts and crashed. the balsa stick-tail broke in two . now it is waiting for repair/modification...
Jul 12, 2007, 03:05 PM
Multi discipline RC'er
MrHmmm's Avatar
Okay! On request Some photo's and measurements! They are european style (SI-units) so you need to convert them yourself

Wings
Span.. 1.10m
Root chord: 20,5 cm
Tip chord: 12 cm
Profile: Clark Z or Y
Vertical 6mm depron spar with carbon rod.
6x 6mm ribs per wing covered wit 3mm depron. See drawing..

Fuse
Fusealage length: 80 cm
Fuse width: as you seem fit
Fuse height: So you stuff fits in and it still looks estetical
All 6mm depron box build so you can round the edges

Vertical tail... 3 layers of 3mm depron, look at pictures for details
13 cm chord at the fuse
7 cm at the 'top' !!!excluding the rudder!!!

Horizontal stab.. 3mm depron (may use 6 mil of a spar in 3mm for that)
root chord: 10 cm (including elevator of 3cm width)
span: 34 cm

Rudder... should be a bit larger (longer) than this one.
Elevator is fine this way.

If you need more info... just throw them questions!! If you start building this bird, I would really appreciate to hear of your progress!
Last edited by MrHmmm; Jul 12, 2007 at 03:13 PM.
Jul 12, 2007, 03:10 PM
registered foam addict
chara's Avatar
Thread OP
wow! I'm impressed! great job! love that fancy T-tail.
(SI units are just fine )

greetings
-chara
Jul 12, 2007, 03:19 PM
Multi discipline RC'er
MrHmmm's Avatar
The T-tail gave it its design challenge, came out well. Guess it gives the typical appeal of a glider.
It looks a lot like your MOSE project, what is the span of that bird? Apperantly the rudder has to be bigger on this type of planes, mine had a really slow response on the rudder as well, still need to enlargen the rudder.
Last edited by MrHmmm; Jul 12, 2007 at 03:30 PM.


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