Mods for LOC Onyx ???

Mods for LOC Onyx ???

Post by TomNavyR » Sun, 04 Mar 2001 17:48:39



 I've ordered and LOC Onyx and it should be here in a couple of days. I've been
thinking of certain mods for it, like motor retention, and maybe a baffle
system for ejection. The motor retention is the easy part, but was wondering if
the actual supplied motor tube would work for baffle?? I plan on moving the top
centering ring down a ways, drilling a series of three holes (1/2 inch dia) on
four sides of the tube (but keeping them fairly closely spaced so I only use up
about 3 inches of the top of the supplies motor tube) and making a 3/16 inch
hobby plywood top to epoxy over the tube (which will have 1/2 inch holes
drilled around it for the gas to escape into the chute compartment. Will the
plywood work. or should I make a plug for the top of the tube and just
manufacture another centering ring for the top? Also thinking of mounting the
shock cord to the center of the top of the baffle plate (or plug - depending on
which way I go). The only thing I have against this type of mounting is that if
the shock cord need replacing, how does one go about getting thier hands down
in there to re-attach a new section of shock cord?
Any other ideas/comments appreciated. I will be flying this bird mostly on Fand
G's but for the grandkids would like to keep the weight down enough so I can
use D's for park demo's.

Tom Brown
"Don't take life too seriously, You don't get out of it alive anyway"
http://www.geocities.com/capecanaveral/station/2185/index.html

 
 
 

Mods for LOC Onyx ???

Post by BRMut » Sun, 04 Mar 2001 23:06:50


Hi Tom,
  There just isn't enough room in the motor mount to do the baffle you
suggested.  A full length G fills the whole tube with no excess length.  I used
good old recovery wadding (to save weight).  There just isn't a lot of room in
the airframe for anything else.
  I built mine stock and got about 30 flights out of it before it crashed.It
was still in good shape at that point.  For minimum weight, make sure to use
the LOC-style shock cord mount.  Those U bolts are heavy critters.  You could
try to add tabs onto the fins (read new fins) to get them to attach to the
motor tube (after slotting the airframe), but I just used the stock attachment.
 A bigger parachute (24") was all that was necessary to stop fin cracking on
landing.
  It is a fun one to fly, though.

Fly straight and true!

MikeyR

 
 
 

Mods for LOC Onyx ???

Post by DLoga » Mon, 05 Mar 2001 01:10:07



Quote:
>The only thing I have against this type of mounting is that if
>the shock cord need replacing, how does one go about getting thier hands
down
>in there to re-attach a new section of shock cord?
>Any other ideas/comments appreciated. I will be flying this bird mostly on
Fand
>G's but for the grandkids would like to keep the weight down enough so I
can
>use D's for park demo's.

>Tom Brown

Tom, the way I've seen suggested is to make a loop in one end of the
replacement cord, drop it in, and use a coat hanger to pull it through the U
bolt, pull it up, and pass the other end through the loop and tighten.
From what I've read in previous posts, LOC's mounts are more durable than
they appear.
     David.
 
 
 

Mods for LOC Onyx ???

Post by Kurt Kesl » Mon, 05 Mar 2001 02:12:31




<snip>

Quote:
> The only thing I have against this type of mounting is that if
> the shock cord need replacing, how does one go about getting thier hands down
> in there to re-attach a new section of shock cord?
> Tom Brown
> "Don't take life too seriously, You don't get out of it alive anyway"
> http://www.geocities.com/capecanaveral/station/2185/index.html

Depends on the size of your hands.  I used a 1/8 inch eye-bolt in the top
centering ring of mine and use 1/8" quick-links to attach the harness.

Also either extend the fins to the motor mount tube or add another
centering ring to reinforce the BT where the leading edge of the fins
sit.  I did not do this and a fin punched through the BT on a rough
landing.

--
Kurt Kesler