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Old Nov 14, 2007, 05:28 PM
Monkey Do
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Plano, TX
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looking on with eager anticipation!!
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Old Nov 16, 2007, 03:39 PM
Always Ready!
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Chicago, IL
Joined Dec 2006
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While hard at work today, I put a little more thought into the design of the Blu-Heron. I'm actually contemplating making it a flying boat: V-stepped with a shallow V-hull, wingtip sponsons, tail feathers will serve as elevator and feet will serve as rudders. Alternatively the webbed "fingers" could be the elevators and the "thumbs" can be the rudders. I'll have to be careful to keep the legs from dragging in the water, or conversely, the prop from nosing in. Because the prop is out in front of the keel, I won't have to worry about water splashing it.

Tell me what you think... I'm all ears for ideas.
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Old Nov 17, 2007, 01:19 AM
skumgummi dave
Gresham, OR.
Joined Mar 2004
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warhead_71:
Great concept drawings! I'm also looking on with eager anticipation...

Dave-
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Old Nov 17, 2007, 04:12 PM
The Dude Abides
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Brockport
Joined Sep 2005
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Nice work man! Can't wait for more!
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Old Nov 17, 2007, 04:32 PM
-+- PhlatBoyz -+-
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New Jersey
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Very cool project! what did you do the drawings in?
Mark
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Old Nov 17, 2007, 05:02 PM
Always Ready!
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Chicago, IL
Joined Dec 2006
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The drawings are just sketched up using Illustrator. I don't have a 3D program. Maybe I'll download Google Sketchup and try that. I hear it works pretty good.

Don't get too anxious for more drawings right away... I just got my Green Models Tiger Moth in the mail yesterday and will be building that before I start on this.

The scope of this thread at this point is to gather ideas and constructive criticism before I rush into it. Hopefully someone will chime in soon and give me input on the KF-spoilerons.
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Old Nov 17, 2007, 06:05 PM
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Quote:
Originally Posted by warhead_71
...The scope of this thread at this point is to gather ideas and constructive criticism before I rush into it. Hopefully someone will chime in soon and give me input on the KF-spoilerons.
The MU-2, as well as some other aircraft, employ spoilerons.
Cheers,
Bill Segraves
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Old May 27, 2008, 10:10 PM
Did you get it on video?
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Joined Nov 2005
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how did the build go?
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Old May 28, 2008, 02:03 PM
Always Ready!
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Chicago, IL
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Not on the build table at the moment. We bought a new fixer-upper house in December and our baby girl is due June 27th -- so I have my hands full for now. It may be a winter build -- should make a good snow-plane.

Sorry to disappoint. Feel free to take my concept and run with it. After more thought, I think I'd fly it with aileron (spoileron) and elevator only... no need for air rudder at all, I hope, but maybe a water rudder behind second step?
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Old Nov 11, 2008, 06:36 PM
Always Ready!
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I've not posted to this thread in awhile... taking time away from new builds for a recent addition to the family. I have thought some about how to control this bird... After looking at numerous pictures of herons, I realized that the bird has abnormally small tail feathers compared to birds of similar wingspan... so it must use it's long legs as a counterbalance to help steer. I wonder if I can devise a way to actuate the legs up and down... the cantilevered feet would control pitch by leveraging the wing attack angle. Hmmmmm..... I'll have to research if any such airplane exists.
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Old Nov 17, 2008, 11:42 AM
CNC Cutter
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United States, IN, Indianapolis
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Check out these wings tips for some inspiration
grid wing wing tips

http://www.rcgroups.com/forums/showt...highlight=grid

Unfortunately since then the original Swiss site has disappeared :-(
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Old Nov 17, 2008, 12:53 PM
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I've read that thread before... makes for an interesting comparison to a bird's primary feathers. The difficult part with FFF would be getting the "feathers" to maintain the correct angle of attack -- I think they'd flutter quite a bit without reinforcement. Perhaps they would require bamboo skewers (or CF if you can afford it) to act like the shaft of an actual feather.
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Old Nov 18, 2008, 07:46 PM
CNC Cutter
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United States, IN, Indianapolis
Joined Dec 2005
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What if we put some 3mm strips of CF in EACH tip feather extending inwards to the
"finger" joint and attach a spar to the center form there ?

kinda like this http://flyingpuppets.org/images/full_vulture04.jpg

I have been fiddling with an 8' Buzzard design with that idea in mind.

These "Birds" arent spoz ta fly fast so the flutter may be sufficiently prevented
witht eh Cf embedded into each feather.
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Old Nov 18, 2008, 09:04 PM
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The heron does use its feet as a "tail" and it also controls its angle of attack by changing its CofG by moving it's head forward and back.

We have a lot of them here and I used to spend a lot of time on the lake fishing , when you are fishing they hang arround hoping for throwaways .
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Old Nov 19, 2008, 12:21 AM
CNC Cutter
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United States, IN, Indianapolis
Joined Dec 2005
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yup yup yup !
I'm on the Columbia River in Washington.
We have a huge estuary here with Wild life refuge et al.
Eagles, Ospreys Herons, Buzzards in summer, Hawks of various types, you name it.
I have lots of pix from nearby as well as Right over the house !
I'm on a Migratory path as well so I hear lots of Shotguns echoing
in the valley at this time of year.

IF ya want to really screw with the herons try a laser pointer :-)))

RE the Model.

I'm thinking a lightly loaded modestly powered low speed bird would be big fun.

I've already had a simple EasyStar Challenged by Hawks several times.
A Realistic model may either fair better or worse.
The Buzzards pretty much leave me alone. But they incorrectly think
I have found thermals when I'm running the motor just "looking" for lift.
They are treated to SINK when the "join up" and I dont see them again for a while. :-)
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