(Contributed - by Bill Eichelberger
- 02/08/05)
Brief:
I got started in rocketry with a group of kids from my old neighborhood in the
summer of 1977. I had picked an Estes Beta as my first kit, but one of my
friends who had managed to get to the J.C. Penney Toyland before I did and he
got the one and only Estes Rogue kit that they had in stock. (He pronounced it
Rouge, no matter how many times we corrected him.) I liked the Beta but always
secretly wished I had eaten a little faster and beaten him to Penney's that
night. Twenty-four years later, I was thinking of doing some scratchbuilding
and bought a PNC-55 assortment and some BT-55 body tubes. While I was initially
unsure of exactly what I was going to build, I was thrilled to find the pointed
cones that would allow me to build close copies of two old favorites, a 1.36:1
Satellite Interceptor and a 1.78:1 Rogue.
Construction:
The parts list:
- BT-55 15.5" length
- BT-50 engine tube 3.0" length
- PNC-55BB
- 1/8" balsa fin stock
- 24 mm engine hook
- CR-2050 engine block
- 2 CR-5055
- 36" length 1/8" sewing elastic shock cord
- 18" Estes parachute
- large snap swivel
- launch lug
- decal
Nothing about the original Rogue's construction was remotely difficult to
anyone with even minimal building experience, so I expected pretty much the
same from the upscale. It's basically a 4FNC rocket in it's original BT-20
incarnation, and it scaled up easily to the BT-55 version with the help of a
copier that could properly size the fin pattern 178%. Since this rocket was
built in my BAR infancy, I glued in the 24mm motor mount without any idea of
the potential for using a length of Kevlar®
as an attachment for the shock cord. The shock cord, which was made from
1/8" sewing elastic, was glued in up at the front of the body tube using
the only method I knew of in the spring of 2001, a traditional Estes tri-fold
mount.
Finishing:
While my recovery systems weren't yet state of the art, I had discovered the
miracle of using thinned Elmer's Fill 'n' Finish to rid my clone of the horrors
of tube spirals and exposed balsa grain. I used 1/8" balsa for the fins,
which may have been overkill on my part, but after several sessions with the
Fill 'n' Finish and sandpaper, the fins looked as if they were cut from glass.
I wasn't the only one who noticed how nice the fins looked as several others
have commented on it over the years. Unfortunately I've never been able to
duplicate the effect on subsequent projects.
As for the painting process, the most difficult part of that was figuring
out what color was an acceptable substitute for "International
Orange". I couldn't find anything that might point me in the right
direction on that problem, so I substituted "Sunburst", a Colors By
Boyd color originally meant for (and used for) a Winston Cup stock car in a
previous hobby. As I later discovered, "Sunburst" and International
Orange were pretty close to the same color. The bottom section of the rocket
including the fins, was painted "Sunburst", while plain old Valspar
gloss white and black were used on the middle and top sections respectively.
Since I hadn't delved into the mysteries and wonders of decal making at the
time, I had to do without and depended on the shape and paint of the rocket to
provide everyone with clues as to it's identity. Still, the question I was
invariably asked on the several occasions when I was stopped and complimented
on the rocket while walking to the pad was "Where are the decals?"
(as if decal making was something that any moron could do.) Well, I decided
that I was not just any moron, and threw myself into the project. After many
misses, near and far, I finally figured out how to resize the decal scan using
Microsoft Photo Editor. It doesn't allow me to clean up the images, but it does
allow them to size properly.
Flight:
While not my intention, the first two flights for the completed Rogue came at
NARAM 43 in Geneseo, NY. Due to the size of the field, I had no qualms about
loading it with a D12-5 for it's first flight. I was directed to a pad almost
in the middle of the sport range and as the time came for my first ever launch
with the Rogue or at a NARAM, the winds were still. This made me hope that my
recovery walk wouldn't be excessive, but it wasn't to be. The breeze, which had
been absent for the bulk of the morning, suddenly sprang to life just before
the countdown began for my flight. I managed to catch a photo of the launch,
which was straight with very little windcocking. Although the flight was fairly
straight, the recovery was anything but. The ejection charge fired as the
rocket was still traveling up, resulting in a somewhat violent start to the
recovery process. Even with the comparatively large spill hole that I'd cut in
the chute, the Rogue immediately began drifting with the breeze and I was
afraid that my first flight at a NARAM was going to be a sacrificial offering
to the corn demon at the field's edge. I watched the Rogue drift ever nearer
the corn from the opposite side of one of the tents, and just when I was sure
that there was no hope, the wind died and dropped the rocket at the edge of the
cornfield. Sunday's flight was more of the same, landing at the edge of the
same cornfield almost in my footprints from the previous day.
The third flight took place two weeks later on a day too windy for rockets.
Despite the winds we went ahead with our club launch, one of the last to be
held at the original QUARK home of the Lebanon YMCA. After loading the standard
D12-5, I angled the Rogue into the wind to give it a better chance to land in
the general vicinity of the YMCA grounds. However, it was immediately obvious
that the winds were stronger above the roof line of the building that somewhat
shielded us. At ejection the Rogue immediately began drifting at a rapid rate
to the northwest. Even the reefed chute wasn't helping, and I chased the rocket
to the edge of the parking lot before giving up and watching it drift away
still hundreds of feet in the air. It looked to be well out over the highway,
heading for some woods, and I decided that the day was getting too short to
spend it searching for a cobbled together rocket when I could be flying its
siblings. Later in the day, another rocket escaped the confines of the field
and while I was looking for it I noticed a flash of orange as I drove past the
long front lawn of a church that was about a half mile away from the launch
site. Thinking that it might be the other missing rocket, I went to investigate
and found the Rogue looking none the worse for wear. (The other rocket turned
up on the front lawn of the YMCA. How I misjudged that I'll never know.)
Summary:
The thing that made this project worthwhile at the time was the unavailability
of the original BNC-20R cone from any known source. Soon after completing the
upscale I discovered Balsa Machining Services and ordered a cone for a 1:1
clone, then actually won an inexpensive, unopened original from an eBay
auction. While the PNC-55BB nose cone is still available for cloning purposes,
Q Modeling has recently added a BT-60 based Rogue to their premium product
line. While the Q Modeling Rogue is much more expensive than cloning one from
scratch, it is also engineered better and is likely a far better, more
consistent building experience. Whichever path you choose, the Rogue's
faux-missile styling almost guarantees that you will turn out a great looking
4FNC rocket with minimal effort.