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Old Feb 05, 2009, 08:29 AM
Registered User
Atlanta, GA
Joined Dec 2007
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Vibration and cameras...

Hey guys,
I know most of you don't seem to get into vibration damping or anything like that, but a lot of you are flying easystars, which are both styrofoam and also pushers, which distances the camera from the motor.

I'm building a tractor (puller) airplane, made out of composites, and I'm mounting a KX-191 on the front of the plane, just behind the propeller (yeah, I know, the prop will make the video feed .... p.s. any suggestions on that?).

Will vibration be a problem for me?

Is there anything special I should do? (e.g. rubber mounting grommets or something?)

Thanks,
-Will
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Old Feb 05, 2009, 09:50 AM
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typicalaimster's Avatar
United States, CA, San Diego
Joined Jan 2005
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Just balance your prop. I put together a Nitro Planes cub and shot through the prop. That plane was a Balsa / Ply constructed plane.
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Old Feb 05, 2009, 11:15 AM
Seeing the Farside.
Blaze.45's Avatar
Seattle WA, USA
Joined Aug 2005
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Yep, balance de prop.
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Old Feb 05, 2009, 01:22 PM
JettPilot's Avatar
Miami
Joined Apr 2005
11,053 Posts
Put the camera in the leading edge of the wing just far enough out that you are not looking through the prop. Its a bit of extra work but its worth it, you will be much happier flying with a clear view.

JettPilot
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Old Feb 05, 2009, 02:40 PM
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Atlanta, GA
Joined Dec 2007
308 Posts
That's an interesting idea.... Is it still sufficiently easy to fly solely by reference to the video if the camera is mounted in the wing?
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Old Feb 05, 2009, 02:55 PM
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Terry S's Avatar
Bridgwater, UK
Joined May 2003
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You don't notice the difference.

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Old Feb 05, 2009, 03:50 PM
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Miami
Joined Apr 2005
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As terry says, you dont know the difference, except that you have a very clear, unobstructed view of everything The horizon is still in the middle which is level flight, all my planes have the camera in the wings.

Think about it like this, if you put the camera on the nose of your plane, you have the nose of the plane in the same place in the monitor all the time. It never changes. It would be the same as cutting out a pieice of cardboard, taping it to the bottom of the monitor and calling it the nose of the plane. It just sits there, never moving, blocking much of your precious downward view. Now immagine taking this peice of cardboard off the monitor, now you have a very clear view of everything, and the flying is exactly the same.

JettPilot
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Old Feb 05, 2009, 04:12 PM
Seeing the Farside.
Blaze.45's Avatar
Seattle WA, USA
Joined Aug 2005
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I'd still balance the prop though
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Old Feb 05, 2009, 05:47 PM
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Atlanta, GA
Joined Dec 2007
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Hmmm, I'm liking this wing mount idea. My only concerns are
1. Balance
2. Weird drag when I'm tilting/panning around.....
thoughts?

And yeah, I'll definitely have to learn how to balance a prop.
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Old Feb 05, 2009, 05:52 PM
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Atlanta, GA
Joined Dec 2007
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Actually, come to think of it, I don't think a wing-mounted camera will work for my application, unfortunately. Our wing is a little undersized for our weight already, and anyway, since our UAV has to fit in a rocket, the bottom of the wing rotates over the top of the fuselage, and the top of the wing will be very close to be inner diameter of the rocket tube.... Might work, but it'd be hard...
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Old Feb 05, 2009, 06:42 PM
Gravity is patient............
Joined Mar 2006
1,949 Posts
I fly FPV helis and I use Zeal absorption tape at some point between the camera and the frame.

Here is one place that sells it:

http://www.readyheli.com/ZEAL_Vibrat...et_p/z8006.htm


The stuff is really sticky, but thick and soft. What I do is typically put the mounting screws right through it, but only tighten them enough to maintain the cameras position.

It's on the expensive side, but very good stuff.
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