Iam starting to build my first high impulse rocket the LOC Forte'.
I was wondering if anyone has built and flown this rocket may pass along some
do's and dont's with this kit.
Any suggestions would be greatly appreciated.
>Iam starting to build my first high impulse rocket the LOC Forte'.
>I was wondering if anyone has built and flown this rocket may pass along some
>do's and dont's with this kit.
>Any suggestions would be greatly appreciated.
Invest in a third centering ring and a longer motor tube. Arrange the
rings with one forward on the motor tube and the other two sandwiching
the fin tabs. Epoxy the forward two rings only to the motor tube and
install in the airframe. Install the fins using epoxy fillets on both
sides of the airframe tubing. Invert the rocket and fillet the fin
tabs to the center ring. Before installing the aft ring give some
though to a positive motor retention system. Kaplow Klips using
t-nuts are one solution. The t-nuts need to be installed before
installing the ring. Test fit the ring and apply epoxy to the motor
tube, airframe tube and fin tabs. Install the ring. Seat it tightly
against the fin tabs. Store upright to allow the expoxy to harden.
Invert and fillet the aft ring to both the airframe and motor tube.
This will provide maximum strength for the fin mounting and support
for the airframe against the inevitable hard landing that would
otherwise cause the fin to crush the airframe tube.
Read Peter O.'s post and do exactly what he says sans the longer MMT.
That's your choice. But go for the 3 centering rings no matter what
motor mount tube. I speak from experience. I like my Forte alot as a
"flyer", but what goes up must come down, and as a "lander" I wish I had
had his advice when I was building. If you do not follow his advice, I
hope you always have soft (very soft) ground to land on. Buy the third
centering ring and follow peters advice.
Also tie another piece of shock cord onto the one they give you. This
can be good cotton cord if not elastic. Even with all the cord they give
you, I have had one "Estes" dent from a SU motor ejection charge. With
RMS motors I reduce the charge by about 40%. This is an even better idea
if you replace the MMT with a longer one.
Also, since the aft centering ring may not be as close to the rear of
the motor mount tube if you follow Peter instructions, you should
consider the "picture hanger and hose clamp" style of motor retention. I
have seen that a couple of times in back issues on SpRocketry. This is
two metal picture hanger used as hooks alongside the protruding MMT and
held tight by a small hose clamp. You can see the Kaplow Klips I use on
my Forte at my site. But I think your aft center ring will be further
into the tube to ***up against the fin tabs. So if you use them you
made need a couple of brass tube "standoffs" and longer cap screws. I
have done this on SU motors which stick out further do to the masking
tape thrust ring. So yourself a favor, you can friction fit motors, but
why not use a little extra insurance and use some sort of PMR (positive
motor retention)? Isn't you rocket worth it? 8^)
So go to my web site for launch reports on the Forte. Look for the
Lucerne reports. Great on a F40-4, G33-5, and H124-10.
^^^Can cert L1!
> Iam starting to build my first high impulse rocket the LOC Forte'.
> I was wondering if anyone has built and flown this rocket may pass along some
> do's and dont's with this kit.
> Any suggestions would be greatly appreciated.
NAR: 70988 Level I Member: ROC, DART, SCRA TRA: 5678 IAR# 43
> >Iam starting to build my first high impulse rocket the LOC Forte'.
> >I was wondering if anyone has built and flown this rocket may pass along some
> >do's and dont's with this kit.
> >Any suggestions would be greatly appreciated.
> Along with the Graduator, this is one of the few LOC kits that
> provides through the wall construction where the tabs don't reach the
> motor tube.
> Invest in a third centering ring and a longer motor tube. Arrange the
> rings with one forward on the motor tube and the other two sandwiching
> the fin tabs.
Or he could use the kit fins as patterns and cut his own that DO reach
the motor tube. Pretty easy with a jigsaw, and then he can make a real
strong rocket with much less hassle. (3" tubes are a *** to work
Just another option.
-Hyam R. Sosnow, TRA #1526 L2 (waiting for paperwork)
You've received a lot of great advice on this thread, most of the procedures
disscussed went into my Forte 4 years ago. I've flown the ABBM (Anit-Barney
Ballistic Missle) many times on motors ranging from F40 to H180 with nary a
problem. Of course I beleive there is no such thing as too much shock cord
and use around 12' of elastic.
They fly really great on RMS G75's!
TRA 2996 L2
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