Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old Oct 06, 2009, 11:49 AM
oldcoot88 is offline
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Quote:
Originally Posted by GWRIGHT
Or, put some dihedral in it so the rudder would work. I'm concerned that it won't be controllable with the flat wing and no ailerons. However, the foam may flex enough to give a little dihedral...
Those turned-up wingtips look like they'll give adequate 'dihedral effect' provided the rudder has enough yaw authority, which it looks like it does. Some of those 'Aerobird' series models actually have anhedral in the main span of the wing, which is offset by the upturned tips.
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Old Oct 06, 2009, 12:21 PM
S3NFO is offline
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Quote:
Originally Posted by GWRIGHT
Or, put some dihedral in it so the rudder would work. I'm concerned that it won't be controllable with the flat wing and no ailerons. However, the foam may flex enough to give a little dihedral in flight. I've had several foam things like that,.. and if the rudder wasn't working well enough you just pulled a bit of elevator to induce some more flex in the wing, then they'd turn <G>.
The original Easystar flies great without dihedral, why would this one be any different?
Old Oct 06, 2009, 02:46 PM
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Possibly because some things don't scale directly. I have a feeling that the moments of inertia of the wings on this beast might be one of those things which might scale up at a rate higher than the effectiveness of the vert. stab and rudder. No time and a bad cold will keep me from running the numbers, though. Just something to think about.
Old Oct 07, 2009, 08:25 AM
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It flexes under flight loads and actually does fly with dihedral. the rudder works, but not great. probably what was intended as a beginners first plane. I love the idea of this big foamie and hope it's hugely successfull,.. just sharing my thoughts. I've built tons of 3-channel stuff over the years and love flying with rudder instead of ailerons,.. but dihedral is what converts the yaw from rudder into roll control, and you usually need quite a bit for good roll authority. this is basically a powered glider and it might be just fine with minimal directional control.

This is my idea of "adequate dihedral" for a 3ch plane <G>
https://www.rcgroups.com/forums/show...ght=slow+stick

Quote:
Originally Posted by S3NFO
The original Easystar flies great without dihedral, why would this one be any different?
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Last edited by GWRIGHT; Oct 07, 2009 at 08:30 AM.
Old Oct 11, 2009, 04:33 PM
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Successful maiden today ...actually 2 flights!

I will post a quick vid by 8pm EST
Old Oct 11, 2009, 04:53 PM
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Quote:
Originally Posted by santeepat
Successful maiden today ...actually 2 flights!

I will post a quick vid by 8pm EST
YES ! Youve earned a HUGE congratulations {did I spell that right ?}
Old Oct 11, 2009, 06:48 PM
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Speed cost money.
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We are waiting for the video (baited breath)

Highflier
Old Oct 11, 2009, 06:53 PM
OzparkPilot is offline
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Watts up ?
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well done !
Old Oct 11, 2009, 09:03 PM
lmopar69 is offline
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Team Cobra!!! Ssssssss!
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Congrats! Looking forward to seeing the Giganta-star in the air.

Laine.
Old Oct 11, 2009, 09:14 PM
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Silent but deadly
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Me too!!! Congrats!!! Looks really cool.
Old Oct 11, 2009, 09:52 PM
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Congrats on the maiden!
Can't pull myself away from my computer waiting on this video!!
Old Oct 11, 2009, 10:25 PM
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Quote:
Originally Posted by santeepat
Successful maiden today ...actually 2 flights!

I will post a quick vid by 8pm EST
Megastar Maiden Flight 1 2009_Final.wmv (3 min 37 sec)
Last edited by santeepat; Jan 16, 2010 at 08:33 AM.
Old Oct 11, 2009, 10:27 PM
CRASH_Jim is offline
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Now for a very large High Def camera for some serious FPV flying.
Old Oct 11, 2009, 10:30 PM
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Awesome. Sounds like a full scale.
Old Oct 11, 2009, 10:51 PM
Owen Hedger is online now
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Good to see it fly.


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