Manufacturer: | Scratch |
Interim Report We recovered this device from a section of hull
plating that had drifted into a long elliptical orbit around the star. It had
pierced the plating but had apparently been so damaged in the process that it
had become inert. Overall, the Macroprobe is about 30cm long. The main fuselage is between 4.4 and 6.5 cm across, and the 'wingspan' is 15-19cm. (The 'wings' are different sizes; like all Borg technology, it is designed for utility, not aesthetics.) A simple reaction engine powers the device. The 'wings' carry reactionless guidance modules. In the front end are the guidance sensors and the drill-like 'probe' containing the nanite injector. Only the flight control systems are functional; everything else has been disabled. We are forwarding the unit, in stasis, to the Daystrom Institute for analysis. Crew chief, Team 28
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Concept
I didn't just want to use found parts; I wanted to use
found parts to make something that looked as if it were intended to be some
kind of real flying device. Most of my ideas I was more or less unhappy with.
They tended to be flying conversions of non-flying objects, which really wasn't
the concept behind Descon 8.
Now I've been an on-again
off-again fan of the Star Trek franchise right from the beginning, and have
even done a Borg costume (of a kind) for a masquerade. (See
here) I had a
bit of stuff left over from the project, and some pretty good ideas of how to
make something look Borg, so after a bit of thought I came up with this
idea - making what purports to be a Borg-manufactured rocket out of scrap
circuit boards.
The instructions will be a bit vague. Unless you used
exactly the same parts I did - and even I don't know what some of them
are - you'll end up having to measure by eye and trim to fit anyway.
Building
I began with the following parts:
That's right; hot glue seems to work fairly well to hold this all together, though it isn't too pretty looking.
Design check
Running it through the Barrowman equations (noting
ahead of time that the odd shape could only be approximated) indicated that it
should be marginally but acceptable stable. It's a real porker, the weight
being right up at about 400 grams or more, by far the heaviest rocket I've ever
built or flown. A D12-3 works, just barely, but an Aerotech E15 or for
preference an E30 would be better. It wasn't in the budget this month,
unfortunately, though Advanced Rocketry Group did have them in stock.
Launch Report
May 7, 2001: Temp about 12C. Winds light but variable
ESE to SSE, gusting to 30 kp/h. Clear.
After cussing out a blown fuse (some grinding discs,
like the one I use as a deflector, are conductive) I got the thing to
launch. The D12-3 was barely adequate to get it up in the air; it weathercocked
quite badly, most likely because end-of-rod velocity was too low. It's draggy,
but it's also likely that my scale was reading low and it was even heavier than
I thought. Apogee was very low, and as a consequence it hit the ground rather
hard, with the chute not properly deployed in time.
(A curious aside: on pressing the Big
Red Button I had offered up a small prayer to the Rocket Gods, and had been
thinking some about Tyche/Fortuna/Lady Luck. When the Macroprobe came down, it
just missed a neighbour's house, and landed on nice damp grass instead of in
last year's dry. This is how religions start, I think...)
Despite the hard landing, it stayed together fairly
well. Some body panels were sprung, but the fins were still nicely attached to
the body tube. Unfortunately, the tube itself was somewhat sprung, so it looks
like I'll have to rebuild it around another BT-50 before I fly it again.
However, that will have to wait until I get work and can afford an E30-4
or two.
Summary
On the whole, I'm pretty pleased with the Macroprobe.
It's the first original design I've flown in 25 years, and I think it worked
better than I had any right to expect.
I'd like to thank Taras at ARG for supplying me with some much needed parts and a bit of patient tolerance as I fretted about motors in the store. And I'd especially like to thank Mishi the Cuddle Cougar, who scored the dead circuit boards from a college I won't name here...
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