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Old Dec 10, 2012, 04:40 PM
Gary
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USA, CT, Sandy Hook
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I love it! It already has my mind working. I am probably going to steal shamelessly!
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Old Dec 10, 2012, 04:50 PM
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Elmhurst, NY (Queens in NYC)
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Quote:
Originally Posted by gklein View Post
I love it! It already has my mind working. I am probably going to steal shamelessly!
I hope you post your mods or variants.

I love the way this looks in flight, but right now I've got an apartment full of planes that refuse to crash beyond repair. These micro things are too tough.

My building days seem to have been brought to a halt by the inherent ruggedness of micros leading to an apartment full of airplanes.

I can't blame it on personal skill. My MiG went in vertical when the clip on my neck strap (not in use but on the tx) totally jammed my right stick. The damage? Mostly cosmetic. I reglued the tail and flew the next day.

I'll try harder next time!

Pete
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Old Dec 10, 2012, 08:13 PM
Aircraft Designer Guy
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Melrose, MA
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Originally Posted by gklein View Post
I love it! It already has my mind working. I am probably going to steal shamelessly!
Haha, steal away. Whatever you come up with, feel free to post pics here.

-Adam
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Old Dec 11, 2012, 02:07 AM
vtol fan
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Joined Jul 2009
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Hi MIT KID!
Where i coul find your old thread with airhogs A10 modded to 4 channel!?
I only see the video with maiden,but i search all 2010 year in micro thread and i d'ont find anything
Chhers...
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Old Dec 11, 2012, 09:30 PM
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ok i love this
I see rudder and elevator but what is the head servo pluged into
tom
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Old Dec 11, 2012, 10:17 PM
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West of California Speedway, East of LaLa, North of Disneyland
Joined May 2001
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Adam,

Very nice!! This is going into my build queue, AHEAD of the Mini MonoTwirl !!

Can we see some detail of the rotor assembly, or is it the same as Al Foot's rotors (on the Twirl and Monotwirl)?
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Old Dec 12, 2012, 06:26 AM
Aircraft Designer Guy
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Melrose, MA
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Originally Posted by 356Jim View Post
Adam,

Very nice!! This is going into my build queue, AHEAD of the Mini MonoTwirl !!

Can we see some detail of the rotor assembly, or is it the same as Al Foot's rotors (on the Twirl and Monotwirl)?
It's essentially the same hub design, I can do a more detailed build with pics of just the rotor. I couldn't quite figure out what his rotor dimensions were, so mine are probably different.

-A
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Old Dec 12, 2012, 09:04 AM
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Adam

also what servo did you use for the head
I have made a number of twin twirls but never a single with any success
would like to build one like yours love the video
it looks like the rotor and hub is built the same as the twin
this may sound like a stupid question what does the tilting the rotor right and left do i read in the heli section that the comand is 90 degrees off to the action
confused
tom
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Old Dec 12, 2012, 10:14 AM
Aircraft Designer Guy
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Melrose, MA
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I'm using one of the 2.2g Turnigy servos:

http://www.hobbyking.com/hobbyking/s...g_0_08sec.html

Tilt is for roll control, since you're directly moving the lift vector of the rotor, there's no real phase lag that you'd get with an articulated head.

-A
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Old Dec 12, 2012, 10:29 AM
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Is the rudder mixed to aileron or independent on the left stick?
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Old Dec 12, 2012, 02:28 PM
Aircraft Designer Guy
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Melrose, MA
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Originally Posted by Petefoss View Post
Is the rudder mixed to aileron or independent on the left stick?
Independent on left stick, I actually find you can turn tighter with hard rudder and opposite aileron compensation.

-A
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Old Dec 12, 2012, 07:57 PM
Aircraft Designer Guy
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Melrose, MA
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Here are some more detailed pics of putting together the rotor. I stack the base and two square spacers first using a toothpick for centering, then I coat all edges of the spacers, as well as the edges and tips of the blade roots with UHU Por. Next I shingle the blades on, using the overlap to establish the pitch angles.

I'm using a plastic pushrod guide as the hub bearing, and the pushrod stock as the shaft. To retain the rotor I glue a short length of the push rod guide to the shaft with CA. After the CA is cured you can twist it free from the shaft, and you now have a nice friction fit stopper to hold the rotor on, or take it off when necessary.

Tomorrow I'll take some detailed pictures of the rotor tilt assembly.

-A
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Old Dec 13, 2012, 09:55 AM
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thank you for the pictures that makes a lot a sence
could you also show pictures of the rotor tilting apparatus and servo linkage
tom
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Last edited by chem teacher2; Dec 13, 2012 at 09:56 AM. Reason: spelling
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Old Dec 13, 2012, 01:13 PM
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West of California Speedway, East of LaLa, North of Disneyland
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Originally Posted by MIT KID View Post
.................................Tilt is for roll control, since you're directly moving the lift vector of the rotor, there's no real phase lag that you'd get with an articulated head........-A

Oooh, oooh!! It would be great if you could give us the rotor tilt angle wrt to the longitudinal axis/horizontal!!
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Old Dec 13, 2012, 09:47 PM
Aircraft Designer Guy
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Melrose, MA
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Rotor sits parallel to the mast feature it mounts to. To get the proper balance, the stub wings should be parallel to the ground when the helicopter is held from the rotor shaft.

-A
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