LOC Aura questions

LOC Aura questions

Post by Alex Merica » Sat, 16 Jan 1999 04:00:00



Quote:

> time with the same result.  The question is: Is the supplied streamer
> recovery sufficient for the Aura's weight?  Were our hard landings due more
> to the 20 mph breeze that day?  How would one compensate the recovery system
> for the wind?

I've flown my Aura 3-4 times on a D12 with excellent results.  The last
flight was in high winds and it broke a fin on landing.  The thing
really drops like a rock.  I've thought about an 18" nylon parachute.
Maybe even a smaller plastic one.

As far as positive motor retention, there doesn't seem to be much room.

--
Alex Mericas
NAR 62956 Level 1 Insured
President, Austin Area Rocketry Group

 
 
 

LOC Aura questions

Post by Andy En » Sat, 16 Jan 1999 04:00:00


Hello Alex

Quote:


> > time with the same result.  The question is: Is the supplied streamer
> > recovery sufficient for the Aura's weight?  Were our hard landings due more
> > to the 20 mph breeze that day?  How would one compensate the recovery system
> > for the wind?

> I've flown my Aura 3-4 times on a D12 with excellent results.  The last
> flight was in high winds and it broke a fin on landing.  The thing
> really drops like a rock.  I've thought about an 18" nylon parachute.
> Maybe even a smaller plastic one.

The nylon chute works, plastic ones come apart...

Quote:
> As far as positive motor retention, there doesn't seem to be much room.

The best I can come up with so far is to epoxy some 2-56 studs between the tubes,
use  kaplow klips, and hold klip down with washers & nuts but I've been holding
out.  I've been keeping an eye out for slim threaded inserts to go between the
motor tube & body but without luck.  I guess I oughta just launch and loose it on
a large SU motor and be done with it 8^)

Regards,
Andy

 
 
 

LOC Aura questions

Post by LSLubec » Sat, 16 Jan 1999 04:00:00


I used throught the wall mounting of the fins on my Aura. Ive launched it with
G80's and G42's with streamer recovery. The fins are still holding.

Steve Lubecki

 
 
 

LOC Aura questions

Post by Essenc » Sat, 16 Jan 1999 04:00:00


We have two reviews on the LOC Aura at our site . . . some useful
information there.

Nick

--
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LOC Aura questions

Post by David Urbane » Sat, 16 Jan 1999 04:00:00


Quote:

> The question is: Is the supplied streamer recovery sufficient for the Aura's
> weight?  Were our hard landings due more to the 20 mph breeze that day?  How
> would one compensate the recovery system for the wind?

When my buddy bought an Aura he brought it over to my place and we
fiberglassed the fins on.  First we epoxied them to the body.  Then made
big epoxy fillets.  then a piece of 2oz fiberglass cloth was layed on
from one fin tip, across the body, to the next fin tip.  This has made
it very strong.  It does drop like a rock, but no popped fins.  Smallest
motor it's launched on so far is an F.
--
==========================================================================
"They who drink beer will think beer." -- Washington Irving

David Urbanek  (NAR# 73974)
http://public.surfree.com/urbanek



 
 
 

LOC Aura questions

Post by nojun » Sat, 16 Jan 1999 04:00:00


Quote:

> The best I can come up with so far is to epoxy some 2-56 studs between the
> tubes, use  kaplow klips, and hold klip down with washers & nuts but I've
> been holding out.  I've been keeping an eye out for slim threaded inserts
> to go between the motor tube & body but without luck.  I guess I oughta
> just launch and loose it on a large SU motor and be done with it 8^)

On mine I filled the rear section with epoxy (between the BT and the
MMT, to the rear centering ring).  Drilled a small hole in it, and use a
self-tapping***to hold a "J" hook made from piano wire against the
rear of the motor.  When the hole gets too worn I can drill another one
90 degrees from it.  After the 4th one it's time to fill them with epoxy
and start over again <g>.

My fins are also about 1/4" shorter than most others, since I cut tabs
onto them and cut slots into the BT, and mounted them through the wall,
to the motor mount tube.  I haven't cracked one yet.  I did this after
seeing Abby's Aura snap a fin on each launch, so far, even using the
epoxy rivet method of attachment.

--
Mike
NAR #70953 - Sr/Insured/Level-1 ~ SeaNAR - The Seattle NAR Section #568
NO Junk Email, please! Real email to: amphoto [at] blarg [dot] net.
<WARNING: Do not look into laser beam with remaining eye!>

 
 
 

LOC Aura questions

Post by Bob Kapl » Mon, 18 Jan 1999 04:00:00


Quote:

> The best I can come up with so far is to epoxy some 2-56 studs between the tubes,
> use  kaplow klips, and hold klip down with washers & nuts but I've been holding
> out.  I've been keeping an eye out for slim threaded inserts to go between the
> motor tube & body but without luck.  I guess I oughta just launch and loose it on
> a large SU motor and be done with it 8^)

I came up with the system I use specifically because I didn't thinkthe studs
sticking out the back of the rocket were safe. Plasec like Micro Fasteners
and Small Parts Inc have T nuts and threaded brass inserts as small as 2-56.
You may have to file some of the T-nut so that it really looks like a T
instead of a round top to make them fit the really tight spaces, but it can
be done. My Vulcanite clone I lost 18 months ago had tiny T nuts in both the
rocket and the 29-38 adapter. Fortunately it's last flight was on an
expendable motor, as it's probably still in the tree.

        Bob Kaplow      NAR # 18L       TRA # "Ctrl-Alt-Del"

Kaplow Klips:   http://members.aol.com/myhprcato/KaplowKlips.html
NIRA:           http://www.nira.chicago.il.us  NAR:    http://www.nar.org

 
 
 

LOC Aura questions

Post by Andy En » Mon, 18 Jan 1999 04:00:00


Hello Bob,

Quote:


> > The best I can come up with so far is to epoxy some 2-56 studs between the tubes,
> > use  kaplow klips, and hold klip down with washers & nuts but I've been holding
> > out.  I've been keeping an eye out for slim threaded inserts to go between the
> > motor tube & body but without luck.  I guess I oughta just launch and loose it on
> > a large SU motor and be done with it 8^)

> I came up with the system I use specifically because I didn't thinkthe studs
> sticking out the back of the rocket were safe. Plasec like Micro Fasteners
> and Small Parts Inc have T nuts and threaded brass inserts as small as 2-56.
> You may have to file some of the T-nut so that it really looks like a T
> instead of a round top to make them fit the really tight spaces, but it can
> be done. My Vulcanite clone I lost 18 months ago had tiny T nuts in both the
> rocket and the 29-38 adapter. Fortunately it's last flight was on an
> expendable motor, as it's probably still in the tree.

True, studs sticking out the rear is annoying.  I was just trying to think how to
install positive retention after the fact for a 29/38 mm combination.  The self tapping
screws with j-hook wires seems to be a good idea for after the fact retrofits--much
more positive than fire and loose it approach 8^)

On a side note, my Vulcanite too has provisions for four (2 for use & 2 for spares)
2-56 klips on the 38mm mounts as  well as with the 38/29mm adapter.  Until I finally
decide to go with either the 29mm system or 38mm  system (leaning towards the latter),
I find fellow flyers are *alot* more at ease loaning me their cases with provisions for
klips in place 8^)

Regards,
Andy

p.s.  As for  your tree'd Vulcanite, maybe you can try to train woodpeckers to help
bring it down?