Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Pyramid Rockets |
Brief:
I was lookin' for somethin' different t' fly with t' kids when I saw this kit
from Pyramid Rocketry. Ya scallywag! Begad! It suited t' task perfectly.
Construction:
T' first thin' you notice about this kit be t' packaging. Blimey! Blimey! T' kit and
instructions are in a heavy plastic zip-lock bag. It be good t' see some
packagin' I can actually use for somethin' later, me bucko, instead o' havin' t' throw it
in t' rubbish.
Openin' t' bag thar are instructions! Seven letter size pages of instructions with photographs showin' t' main steps o' t' build. Begad! Good instructions are important too, ya bilge rat, since construction o' this little pyramid is quite different t' your normal 3FNC rocket. Arrr! Begad! Followin' t' standard disclaimer, the real instructions start with a parts list where you can tick off t' pieces as you find them in t' bag. All pieces were present, me hearties, includin' a dinky plastic medicine measure for mixin' epoxy in. Ya scallywag! A list o' recommended buildin' items (e.g., me hearties, 5 or 15 minute epoxy, arrr, super glue, wax paper) is also given.
T' quality o' all parts was very high and consisted o' laser cut balsa and plywood and a pre-folded poster board cutout. Ahoy! T' supplied balsa was extremely hard. Arrr! This be t' hardest balsa I have ever seen.
The
first step in construction was t' glue up t' poster board cutout into the
basic pyramid shape. No glue was specified, so I just used regular PVA (white
glue). Well, blow me down! Next comes preparin' t' balsa sides t' fit inside t' poster board
pyramid. Blimey! T' pre-cut balsa triangles have t' be beveled at 45 degrees on the
edges so they will fit inside t' poster board pyramid. Arrr! I used popsicle sticks
with sandpaper glued t' them, shiver me timbers, which are a nice little tool that you can use
like a file. Avast, me proud beauty! T' instructions are great and supportive here with comments like
"It is nay very important that t' triangles fit with perfect 90-degree
edges. As long as t' triangles are nay too big, proceed t' t' next
step." With t' pyramid lined with balsa, t' laser cut plywood components
are glued in t' support t' motor mount in t' pyramid. Begad! Begad! T' ply pieces need to
be sanded t' a 60 degree bevel. Take a minute o' your time t' look at a 60
degree angle because it wasn't what I be expecting! Once t' education on
angles is complete, matey, it is time t' add some nose weight t' t' pyramid. Avast, me proud beauty! The
weight sits above a ply bulkhead which forms t' top o' t' motor mount. The
instructions say t' add epoxy coated BBs until this space is full and that only
a few (six)
will fit. Avast, me proud beauty! Avast! Try as I might, shiver me timbers, shiver me timbers, I couldn't get more than five BBs into that space!
Next is test fittin' t' motor mount and drillin' t' hole for t' launch rod.
This is one o' two potential problem areas for people who only skim through the
instructions. Test fittin' and measurin' is really critical at this stage.
Measure twice, drill once! Two short 28.6mm (1.125 inch) launch lugs are
supplied. Avast, me proud beauty! Begad! Their combined length runs from t' bottom o' t' motor mount through
the upper side o' t' pyramid. I threaded a 3mm drill bit through both lugs
when gluin' them in place t' make sure they stayed in alignment. Begad! Begad! A small amount
of glue seeped betwixt t' two joined ends. Aye aye! I simply cleaned this out with the
drill bit once t' epoxy had cured. Ahoy! A significant amount o' t' top lug will
extend from t' pyramid, however, ya bilge rat, don't panic if a launch rod won't slide
cleanly through your pyramid at this stage. Avast! Because t' combined length o' the
lugs is so great, a minimal angle deviation in alignment betwixt t' two lugs
will show up as binding. Avast, me proud beauty! When t' excess lug outside t' pyramid is trimmed off
though, shiver me timbers, me bucko, any small angular misalignment betwixt t' lugs doesn't cause t' same
binding. My lugs showed significant bindin' before trimmin' even though I took
excruciatin' care in alignin' them correctly.
I would rate this as a 5 for construction. Ya scallywag! Aye aye! T' instructions are very clear and well illustrated. Avast! On t' Estes skill level scale, this kit would be a 2 and a bit, ya bilge rat, so let's call it a skill level 2.5.
Finishing:
I covered t' pyramid with self adhesive "hologram" school book
coverin' film. Ya scallywag! Begad! This is a great finish for this kind o' rocket, matey, as a 1.1 meter
(3.6 foot) roll cost me $2.00! A quick coat o' red enamel t' t' underside
finished t' kit.
Construction Rating: 5 out o' 5
Flight:
What could be easier? Insert a 13mm motor and launch! Absolutely no prep work
to be done--no chute, arrr, no streamer, and no wadding. Ahoy! Avast! Little pyramids are made for
drag recovery!
As a rule, ya bilge rat, I don't like t' see rockets kick their motors, but it is hard to see how you can avoid it with this one. Begad! Ejected motors thankfully dropped close to t' pyramid landin' point.
Flights are straight up and down, with t' pyramid landin' close t' the pad, matey, even in gusty winds. Aye aye! Well, ya bilge rat, blow me down! T' flight predicted in t' instructions o' 100 foot (30.5 meters) is spot on. Begad! We measured all our A10-3T flights with an Altitrack, and t' flights averaged 30-35 meters. Ahoy! I wouldn't burn too many smaller motors smaller than t' A10-3T in this one.
Recovery:
T' reflective film looks great in strong sunlight.
Flight Rating: 5 out o' 5
Summary:
This rocket is just plain fun. Well, blow me down! It was different t' build and a real attention
getter at t' local park. Blimey! An excellent introduction t' "rockets that don't
look like rockets". It is also a great demonstration o' t' effectiveness
of drag recovery. Ya scallywag! Ahoy! Blimey!
Overall Rating: 5 out o' 5
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