LOC IV Stuff

LOC IV Stuff

Post by D.L. Brow » Sat, 18 Jan 1997 04:00:00



I have a few questions about my new LOC IV kit.  

1.  LOC only lists it as being capable of using up to a G motor.  Everybody
here on R.M.R. suggests it's use as a level 1 H bird.  Can it take it as designed,
or should I beef it up?

2. How come they don't have the fins go all the way to the motor tube?

3. What would be the ideal level 1 Cert. motors, expendable and reload?

Cant wait to start squirting some epoxy!!!!!!!!!!!!!!!!

                                   Thanks,
                                    Dwight -- NAR 69453

 
 
 

LOC IV Stuff

Post by K » Sun, 19 Jan 1997 04:00:00


Quote:

>I have a few questions about my new LOC IV kit.  
>1.  LOC only lists it as being capable of using up to a G motor.  Everybody
>here on R.M.R. suggests it's use as a level 1 H bird.  Can it take it as designed,
>or should I beef it up?

We use H128 and H238 reloads all the time. It's fine on the 29/180
reloads. Should be fine on the 29/240 reloads as well.

Quote:
>2. How come they don't have the fins go all the way to the motor tube?

The fins can come loose from the body. Drill small holes into the body
tube along the slots before you attach the fins to add strength.

Quote:
>3. What would be the ideal level 1 Cert. motors, expendable and reload?

Reloads are much less expensive. And you can keep reloads without BATF
permits.

Have fun,

KF

 
 
 

LOC IV Stuff

Post by Jim McLaughli » Sun, 19 Jan 1997 04:00:00


MAJOR SNIPS

Quote:

> Reloads are much less expensive. And you can keep reloads without BATF

                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Quote:
> permits.
^^^^^^^^^

Uhhhhh........this not exactly accurate. There are a whole lot of reloads
that require LEUPs to store and require LEUps to  purchase accross state
lines. Generally anything more than a G motor, despite what some
manufacturers will tell you about H and above motors with single slugs of
less than 62.5 grams mass.  BATF simply isnt agreeing with that theory.
If the total assemblesd mass of an assembled reload masses more than 62.5
grams propellent of an AP/HTBP  (or similar controlled composition) you
need an LEUP.  bATF hsa in the past refrained from enforcing that
provision of federal law, but that previous non enforcement regime is
apparently ending very quickly.

Jim McLaughlin                     These opinions are mine, mine, mine!
                                   And not anybody else's. So there.


 
 
 

LOC IV Stuff

Post by Martin Rogo » Mon, 20 Jan 1997 04:00:00


Quote:

>I have a few questions about my new LOC IV kit.  

>1.  LOC only lists it as being capable of using up to a G motor.  Everybody
>here on R.M.R. suggests it's use as a level 1 H bird.  Can it take it as designed,
>or should I beef it up?

I certified today with an Aerotech H180M in a slightly beefed up LOC
IV.  I used part of a small guy wire clamp to make a shock cord mount
on the upper centering ring.  I attached a steel fishing leader wire
to the mount and crimped a loop near the top (but recessed) of the
bidy tube.  I used 30 minute epoxy to get good fin fillets on the
inside and outside of the body tube.  I added positive motor retention
hardware to the lower centering ring.  I definately did not want to
have to go search for a reload case or fail the certification attempt.
The last part I glued in was the lower centering ring.  I removed some
of the inside fin fillet to allow the lower centering ring to contact
the fin plywood for a strong joint.

It was an awesome flight, and I hope to read about your flight.

Quote:

>2. How come they don't have the fins go all the way to the motor tube?

Good question.  This would make for a stronger fin assembly.
Quote:

>3. What would be the ideal level 1 Cert. motors, expendable and reload?

I used an Aerotech H180M, and I read another poster here that
recommended the same reload.  Any of the 29mm Aerotech H reloads
should be fine.

Quote:

>Cant wait to start squirting some epoxy!!!!!!!!!!!!!!!!

>                                   Thanks,
>                                    Dwight -- NAR 69453


Martin Rogoff
N5GPS
NAR # 65545


 
 
 

LOC IV Stuff

Post by Jim Clear » Mon, 20 Jan 1997 04:00:00


Quote:

> I have a few questions about my new LOC IV kit.
> Cant wait to start squirting some epoxy!!!!!!!!!!!!!!!!

>                                    Thanks,
>                                     Dwight -- NAR 69453


-       Dwight,
                The LOC IV is indeed a good Level 1 certification bird, yes beef it up
by using an extra centering ring on the motor mount tube and filleting
the inside of the body tube at the fin joints. My favorite combination
with the LOC IV is the AeroTech RMS H97J-short, lots of black smoke and
a slow lift-off, other motors to use are the other 29MM AeroTech reloads
H128 etc. REMEMBER use the SHORT DELAY as this is a 3 Lb. bird with the
large reload casing.
                        Jim C.
                        TRA #3996 Level 2
                        METRA
                        LIARS
 
 
 

LOC IV Stuff

Post by Jerry Irvi » Tue, 21 Jan 1997 04:00:00


Quote:

> 1.  LOC only lists it as being capable of using up to a G motor.  Everybody
> here on R.M.R. suggests it's use as a level 1 H bird.

Most manufacturers recommend very conservative motor choices.  However the
range of acceptable motors range widely in their own arsenal as well as
into other brands of motors.

For example a USR Banshee (29mm 2.25" x 42") is recommended with Estes
D12-5, USR E25-8, F40-8, G60-12.  But you can succesfully use it to
certify level 1 with any H including the popular USR H60 or H120 mid range
H motors. You can then later use the SAME MODEL ROCKET to certify in HPR
level II with the amazing 29mm J160-12 Brightstar!

The possibilities in this hobby are endless. Do not let the basic
recommendations of manufacturers limit your thinking.  Just be prepared to
waive rights to warranty if your Estes Alpha works great on an A8-5 (not
recommended) but SHREDS on an 18mm USR G55 at about M1.5 :).

Jerry

www.usrockets.com (nice quote, eh?)

--

Box 1242, Claremont, CA 91711 USA
Opinion, the whole thing.

 
 
 

LOC IV Stuff

Post by balthe.. » Tue, 21 Jan 1997 04:00:00


I intend to cert L1 with my LOC IV on a H97J. The only mods to the rocket
are glassed (inside the airframe) fins and blind nuts installed in the aft
ring to allow for positive motor retention.

Bruce Kirchner

 
 
 

LOC IV Stuff

Post by Bob Kapl » Fri, 24 Jan 1997 04:00:00


Quote:

> I have a few questions about my new LOC IV kit.  
> 1.  LOC only lists it as being capable of using up to a G motor.  Everybody
> here on R.M.R. suggests it's use as a level 1 H bird.  Can it take it as designed,
> or should I beef it up?

A stock LOC IV will take at least the common 29mm H reloads. Mine was built
stock, and I certified with it and an old 200 ns Ravenna motor.

Quote:
> 2. How come they don't have the fins go all the way to the motor tube?

The recommended motors and even H motors don't need it.

Quote:
> 3. What would be the ideal level 1 Cert. motors, expendable and reload?

In a LOC-IV, the H97 reload would be the gentlest route. I try to avoid the
G75/H128 issue for certification. They are both so close to the G|H line.

For models with 38mm mounts, I often recommend the H123 reload.

        Bob Kaplow      NAR # 18L       TRA # "Abort, Retry, Fail?"