REFLECTOR: FW: My New Youtube Video

Mon Aug 27 17:15:16 CDT 2012

Mark,

I've flown the Sky3D mounts symmetrically and asymmetrically without any
noticeable yawing, flutter or mount failure indications at high speeds, and
also no noticeable loss of rudder effectiveness at take-off or landing
speeds.  Fore and aft-looking cameras are typically mounted about 12" in
from the winglet extension on the bottom of the wings, and the outward
looking camera is mounted on the outside of the winglet extension (as shown
in the earlier photos).

We've considered making a fiberglass fairing but to date have decided
against it because:

*	it will increase the flat plate area and most likely also the drag,
*	because the wide field of view of the cameras won't allow the
required forward sweep of a fairing,
*	and because to get unobstructed imagery the cameras must be mounted
very near to the leading edges.

What works very well is symmetrically mounting a Left and Right camera on
each wingtip (as in the photo) and then using the Sky3D software to put the
two video streams together into a single 3D video file!  Luckily, our
Velocity's aren't quite supersonic, yet!

Bob

  _____  

From: Mark Magee [mailto:edjonesbrady at gmail.com] 
Sent: Monday, August 27, 2012 4:30 PM
To: Velocity Aircraft Owners and Builders list
Cc: bobj at jaxtechllc.com; reflector at tvbf.org
Subject: Re: REFLECTOR: My New Youtube Video

I like the stability of the mount, yet worry about the install and the
induced yaw when I take off with afterburner (solo, light fuel)...

Is there the possibility of a plexiglas fairing or other methodology of drag
reduction for a drag load so far from centerline? Or do we just mount -2 on
the opposite winglet for equalization?

I am excited about what your doing.

Mark B. Magee

N34XL

Sent from IPhone 4

From: Bob Jackson (Jax Tech) [mailto:bobj at jaxtechllc.com] 
Sent: Monday, August 27, 2012 11:13 AM
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org> 
Subject: Re: REFLECTOR: My New Youtube Video 

Mark & Darrell,

Here are two examples of our Sky3D mount for GoPro cameras (designed for the
Velocity and also specifically for the RV's):

<image003.jpg>    <image004.jpg>

Velocity -- outboard under wing, facing forward or aft
Velocity -- facing outward under the winglet

There are a bunch of issues with using suction cup and other typical GoPro
mounts, not the least of course is loosing the camera (and the associated
liability!)  But, beyond that you won't get consistently good video quality
-- the mounts are not stable enough in the wind stream -- with aerodynamic
turbulence, variable wing loading, induced engine vibration, etc..  

Those conditions create a 'jelloing'/image warping ('drunken sailor', or
maybe 'drunken airman') effect in the video, which may come and go with
engine and flight conditions, but is always annoying when it screws up your
best videos (like the 'jelloing' that makes you wonder if maybe you're
looking at Niagara Falls from under the water!)  The GoPro only has with a
single mount point on the bottom of the camera case -- you need a 3-point
attachment for stability (and security).

Beyond security and stability, having the repeatability to re-mount cameras
in the exact same orientations is another big issue with standard GoPro
'temporary' mounts.  This is especially important for multi-camera and 3D
video generation configurations -- both for scenic (air-to-ground) and
formation flight (air-to-air) shooting applications.  

We (small Sky3D company I recently created) had a booth at Oshkosh this year
which some of you saw.  Mainly, we're selling software that aligns the
independent video streams (created from GoPro cameras mounted out on left
and right wingtips) into a high quality stereo video that you can play on
any 3D home TV or display (or standard TV with red-cyan glasses), preferably
in High Def (1080p!).  

Because you mount the cameras 100+ times further apart than the (~2.5 inch
separation) of your eyes, the software produces 3D video with 100+ times the
depth perception.  It doesn't magnify the imagery, but you still feel like
you're 100x closer due to the increased depth perception.  Flying at 1000 ft
AGL, it looks like you're a giant walking on a model train set, 10 feet away
from, and able to reach down and pick up the individual houses, bridges and
trees.

We make the camera mounts so customers can stably, securely and repeatably
mount 3D cameras -- since if you can't mount the cameras easily and
properly, we won't be able to sell you our software!  The software
automatically identifies and removes all camera mounting alignment errors
and also does a frame-by-frame (runs all night long on your home PC) fine
registration and Left-Right 3D alignment (to correct the dynamic alignment
errors that are continuously occurring due to turbulence, wing loading, and
vibrations).  

If you're interested in either the camera mounts or the software, you can
check out our website:

            http://www.sky-3d.com/

Bob Jackson

Sky3D, LLC

Velocity Turbo XL/RG

N2XF

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Mark Magee
Sent: Monday, August 27, 2012 6:17 AM
To: Velocity Aircraft Owners and Builders list
Cc: <reflector at tvbf.org>
Subject: Re: REFLECTOR: My New Youtube Video

Cool!

Can you post up a pic on how you mounted the cam please?

Mark B. Magee

N34XL

Sent from IPhone 4

On Aug 26, 2012, at 8:25 PM, "Darrell & Nora Kufalk" <kufalk at wi.rr.com>
wrote:

If you have nothing better to do for the next 4 1/2 minutes.  

I just go a new GoPro camera last week.  Here is my first attempt at making
a video with it.

Turned out pretty good.  Pick 720p and watch it full screen.

 <http://www.youtube.com/watch?v=gyqrA4-bQBA>
http://www.youtube.com/watch?v=gyqrA4-bQBA

Darrell

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