
(Contributed - by Chan Stevens
- 03/20/05)
Brief:
Another fine miniaturization job by ASP. This is a roughly 1/50th scale of the
1954-1959 Army anti-aircraft missile. It's also a great value, available for
under $6, and flies on motors that can generally be found for about $0.40-$0.50
apiece.
Construction:
ASP's parts list includes some very good quality packed in this $6 kit:
- Styrene fin stock
- Styrene
- 2 body tubes
- 2 tube couplers (one serves as )
- Kevlar®
shock cord
- sinker
- Hardwood nose cone
- Mylar streamer
- Waterslide decal
ASP's instructions are generally well written and easy to follow but tend to
be a bit light on illustrations. They are generally geared for the competition
flyer and this would make a very good peanut sport scale entry. Overall, I'd
rate this a skill level 2.5 to 3, mainly due to the challenge of working in
micro scale.
Construction starts with sanding and marking the body tube. There was a
neat little styrene angle supplied for use as a marking tool. Imagine trying to
use the doorjamb method on a 7mm tube!
Cutting the fins from styrene stock is a bit tricky and the instructions
offer a good tip of using double-sided tape to hold the stock in place while
you mark and cut. There are 4 fins for this kit. I tacked the fins to the body
using thin then a medium CA fillet.
Next, one of the couplers is cut to be used for a mini , holding
the nose weight. The nose cone (made of a very nice hardwood) is glued into the
end. At the aft end, the Kevlar®
shock cord is anchored by tying it to the sinker wedged in the . The
remaining coupler section is inserted into the aft end of the body tube, also
serving as a motor block.
The launch lug is then attached but uses a standoff piece. After building
mine, I'd really prefer to lose the lug and make a tower launcher. It
definitely detracts from the great overall appearance.
This rocket also gets two conduits cut as very tiny and thin strips from
the styrene stock. They go on opposing sides of the body tube centered between
fin lines.
Finishing:
Finishing a micro scale rocket is truly a pain. This uses a pretty simple paint
scheme: white base, black fins, and black conduits. Unfortunately, you're
dealing with areas of body between fins that's only about 5mm wide, so masking
and is very hard to do effectively. I spent the better part of one
evening cutting custom sized strips of masking tape then trimming slightly
after application.
The end result worked fairly well with only one minor blemish where the
black bled through although I was able to scrape this off before it had fully
cured.
There is also a basic "US ARMY" waterslide decal for opposing
sides of the body.
Construction Rating:
4
½ out of 5
Flight:
Hawks are regardless of scale, only marginally stable at best. This one was no
exception, looping once in mid-flight although generally always heading
upwards. The motor makes for an amusing flight: incredible
thrust-to-weight ratio, resulting in flight speeds faster than most eyes will
be able to pick up. When you fly these, you're definitely looking more for the
puff of smoke more than the actual flight. Anyone who catches one of these in
flight on film or digital media is sure to win one of EMRR's photo contests.
Recovery:
The mylar streamer deployed but didn't manage to unfurl. That failure was
probably from being packed too long on too cold a day. Still, the rocket
tumbled gently down and was recovered for future flights. No damage at all.
Flight Rating:
2
½ out of 5
Summary:
PROs: outstanding scale detail in such a small scale, very affordable kit.
CONs:unstable flight, might need more nose weight.
Overall Rating:
4
out of 5