Juno I PMC tips from rec.models.rockets
I pulled these references from the
rec.models.rockets newsgroup and
archives. The tips are in chronological order and have been
edited a bit. I haven't built mine yet, so I can't vouch for
any of these tips...
BTW, although the kits (and lots of references) refer to this launch
vehicle as the Jupiter-C, it is more properly called the
From: firstname.lastname@example.org (J A Stephen Viggiano)
Date: Thu, 23 Feb 1995 16:10:46 GMT
In article <3ifsu5$1tnd@ns1.CC.Lehigh.EDU> row0@Lehigh.EDU writes:
> Next I just bought a "GLENCO" Jupiter C
>and would like to stuff a tube and wg mount
>in it; to launch and recover the thing.
>If anyone has done this , would greatly appreciate
>any do's or don't. Using the SWAG technique
>I was thinking along the lines of a B or C
>size wg's and using 1/16 thick styrene or
>clear plexi-glass to redo the fins.
The tub (the whizzmo at top just under the Explorer satellite)
is hollow. Stuff it with lead shot or solder. Put some modeling
clay in the top of the transition, which winds up being the nose
cone. Then you shouldn't need any additional fin area.
I used Quest T-30 tubing as my stuffer. It fit nicely. The hole
at the aft end is just right for an 18mm Propellant Actuated Device.
I cut a notch for the engine hook with a 3mm (1/8") paper hole punch.
Recovery was on two chutes: one for the booster, and one for the nose
section. Any snapback at ejection would have been painful, so I
avoided it altogether this way.
I flew it on an Estes C5-3 (nothing like living dangerously, eh?).
I suspect it would fly quite nicely on an Aerotech D21, though not
one of the ones with the monolithic casings.
The tub has broken off mine. I had used cyanoacrylate to attach it to
the transition. This and the Explorer satellite are the weak points in
The NAR Technical Report Plastic Model Conversion by Ken Brown
has an article by Scott Clement detailing the conversion steps for the
Glencoe kit. It uses extra fin area instead of nose weight to achieve
This report is available from NARTS, PO Box 1482, Saugus, MA 01960.