
(Contributed - by Kevin Johnson - 09/13/04)
Brief:
Single stage LMR with a large clear payload .
Construction:
The bagged kit arrived from packed firmly in a box as part of an order
of tubes. I got 2 extra canopies as part of a special when I ordered.
The parts include:
- 1 2.217" , 18" long
- 1 2.217" clear plastic tube, 10" long
- 1 tube, 4" long
- 1 fiberboard payload disk
- 1 5:1 ogive plastic , 11" long
- 3 die cut fins
- 2 fiberboard centering rings
- 1 24mm motor tube, 4" long
- 1
- 1 Kevlar®
, 60" long
- 1 1/4"
- 1 32" diameter, octagon plastic with heavy thread lines and
tape reinforcement rings
- 1 sheet of press on decals
- There was also a nice instruction booklet with illustrations and a copy of
the fin .
The instructions (several pages on 8.5" x 11" sized paper) were
very well written and illustrated to show all construction steps. Tools needed
in construction included a hobby knife, a pencil, a ruler, masking tape,
sandpaper, yellow glue, glue, and paint.
This kit is rated as a level 2 build and I'd have to agree. It was very
quick to assemble following the directions, all parts were called out in an
order that made sense. You are directed to notch the engine block to allow the
Kevlar®
shock cord to fit and you need to pay attention to where you mount the engine
block depending on what size motors you plan on using. I had a little trouble
at first getting the coupler to fit in the payload tube, but you want this
connection to be nice and tight anyway. It just took a little bit of patience
to get it to slide. The coupler and bulkhead attachment is very neat, using a
section of Kevlar®
glued along the inside of the coupler to act as an anchor and shock cord mount.
I built the rocket over the course of an evening using TiteBond II yellow
glue.
:
Painting is easy...spray the fins and lower body tube one color, then spray the
nose cone another. The peel and stick decals are nicely done with clearly
marked cut lines. The one wrap around is the right size to make it around the
tube with a 1/4" overlap. It would have been nice to have one more
"DynaStar" for the 3rd fin, but I'll live.
Construction Rating:
5
out of 5
Flight:
I had plans for this rocket to be used as a carrier for a payload.
I knew I'd have to have the oomph to carry a small strobe light and batteries
so for the 1st flight I used a D12-3. I didn't use a spacer for the motor
(having built the rocket for the longer E9 and F21 motors), so I just used a
wrap of tape around the motor and the tube to secure it. The Rising Star got
off the pad nice and straight but made some small oscillations as the motor
burned out. Ejection was at apogee and the chute (protected by 5-6 sheets of
Quest ) opened and filled very nicely. The bright yellow and black
pattern was very visible. Touchdown was very soft on the short grass.
For the second flight of the day I used an F21-4 (not a recommended motor)
because I wanted to get the strobe light higher and I was concerned that an E9
might not get the model going fast enough. Again I prepped with 5-6 sheets of
wadding, wrapped the exposed motor and mount with tape for retention, and let
it loose. The F21 got the model moving very quickly and the was much
higher than the D12 flight. The fired and the parachute,
payload and strobe light went on a long ride without the body tube. Every thing
came down safely without damage. I had a nice long walk, probably about 1/2
mile, to where the payload came down. Thankfully the strobe was flashing to
give me a beacon since it had started to get dark.
Recovery:
I had thought that maybe the ejection charge had burned the ®,
but on finding the payload and examining the cord I found that the Kevlar®
was still tied in a loop where it had been attached to the . It had
broken the engine block, most likely caused by me picking too short of a .
Since it was already fully dark by the time I got back to the and I
didn't have anything to effectively perform a field repair (I will use
and a section of body tube to make an Estes style shock cord mount on the
inside of the ), I was unable to make a 3rd flight on an E9.
Flight Rating:
4
½ out of 5
Summary:
This is a great kit. It builds a lightweight rocket that can be flown
on a wide range of D-F motors (especially when you add in 24mm reloads.. this
rocket would kick on an F39!). The DynaStar line has some exciting looking
models, maybe a mount would be a good addition to this line.
Overall Rating:
5
out of 5