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Old Jun 19, 2015, 07:53 PM
BHOFM is offline
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Kimbers Keeper.
United States, AR
Joined Nov 2014
1,596 Posts
Build Log
Three hour build of the Moon Drifter!

My newest design. I give you the Hinieball. Basic airframe is done, will start on the undercarriage, get a weight and pick the electronics, 5g servos on the rudders, X2
9g on the elevator.





If this is my last post at RCG, it has been fun. I have been reported for less. Kimber got a
suspension for posting Bart Simpson mooning.

I hope it flies good, I would hate to crack it up.

Moving right along with this project, sure don't want to get behind. Be interesting to see
how it handles wind. Do you think this prop makes the tail look big?







With all the stuff still in the bags, piled on the scales, AUW is 308g. That includes the battery.

All done, ready to fly, AUW 300g. Span 29.5". Power available. 99W.

I put all the mechanicals underneath to keep the top clean, painted the motor stick
and control rods white to blend in.







I christened it "Moon Drifter".
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Old Jun 19, 2015, 09:10 PM
C₄H₁₀ is online now
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Wake up, feel pulse, be happy!
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United States, MN, Minneapolis
Joined Aug 2009
12,954 Posts
Any particular reason you've gone with a separate motor mount stick on top? The way I've always built this sort of model, I just mount the motor to the main stick underneath.

Looks like it needs a pilot figure named "Ben Dover".
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Old Jun 19, 2015, 09:22 PM
BHOFM is offline
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Kimbers Keeper.
United States, AR
Joined Nov 2014
1,596 Posts
The under stick is balsa. Don't feel it is suitable for motor mount. I did the stick on top to get
more prop clearance. Glad I did, the 10X4.7 draws 11.9A with a 2s battery. The motor and ESC
are rated to 12A, 15A momentarily. Tried the 9X4.7 first, just at 9A.

May add a pilot!!!!
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Old Jun 20, 2015, 12:30 AM
S.Davy is offline
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Save a tree fly a foamy
United States, CA, Marshall
Joined Apr 2005
569 Posts
Quote:
Originally Posted by BHOFM View Post
May add a pilot!!!!
Yikes!

PS Think you should make it a twin with contra rotating three blade props AND differential thrust.
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Last edited by S.Davy; Jun 20, 2015 at 12:36 AM.
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Old Jun 20, 2015, 01:31 AM
SpaceDrydock-22 is offline
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"Use the foam, Luke!"
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Finland, Kuopio
Joined Aug 2010
266 Posts
Looks like stretched nutball.
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Old Jun 30, 2015, 07:27 AM
BHOFM is offline
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Kimbers Keeper.
United States, AR
Joined Nov 2014
1,596 Posts
Well, this project was pretty much a fail. File it under "learning".

Worked on it most of the afternoon yesterday. Many flights, maybe a dozen.

Rudders are not in the prop wash. Very ineffective. Max throw, 125%, they only work
at high speed, slow into a hover and they are gone. Min elevator throw was still very dicey.

When it got down wind, the only thing to do was put it down and go get it. Tried to circle
and get it back, but each circle just got farther away. Four long walks is too much for a
bald headed old fat man.

It has tremendous amounts of power, even on 2s, 3s was a bit too much. Just that the rudders
are too far outboard.

It did fly, in light air it was manageable. Not fun, just manageable. One minor crash, broke the
prop. The rest of the flights, landings were just acceptable.

I am going to cut it down to a hybrid Nutball, O-Fungle. Some lighter wheels and a smaller
prop, or smaller motor.

The fact that it came home undamaged after so many flights, maybe "fail" is the wrong word??
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Old Jun 30, 2015, 02:12 PM
eflightray is online now
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An itch?. Scratch build.
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South Wales U.K.
Joined Mar 2003
15,213 Posts
Not a 'Fail'.

Obviously needs a second motor and differential throttle.
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Old Jun 30, 2015, 07:20 PM
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United States, PA, Plum
Joined Jan 2008
534 Posts
Ive always wondered what BHOFM stood for..... now I know. Cant wait to see the dual motor version .
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Old Jun 30, 2015, 08:46 PM
BHOFM is offline
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Kimbers Keeper.
United States, AR
Joined Nov 2014
1,596 Posts
It is too late, it went under the knife. It is now a 19" Nutball with slightly modified control surfaces.

Getting ready to glue the wind dihedral, making coffee at the moment. My personal special blend.
Shipped in from South America.

Pictures later if anyone is interested, just a Nutball. Like butt holes, everyone has one and they
pretty much look the same.
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