| Manufacturer: | Scratch |
Brief:
My first paper rocket design--and it actually worked t' first time!
Construction:
All that's needed is one 8 1/2" X 11" Sheet o' 120# cardstock and
white glue.
I started by takin' a CD-ROM and usin' it as a template for t' upper portion o' t' saucer. Avast! Begad! I traced both t' outside o' t' CD as well as the spindle hole in t' center. Ahoy! After cuttin' out t' both circles, ya bilge rat, matey, I slit the circle from t' edge t' t' center hole. Aye aye! Begad! I then made a cone by overlappin' the cut edges by 1". Avast! I used a hole punch t' make a small hole for t' launch rod t' pass through. I then cut out another circle that was 3.75" wide with a 14mm hole in t' center. Ya scallywag! This part will attach under t' cone t' give it support. Another small hole was punched for t' launch rod.
Next be t' motor
mount. Ya scallywag! Blimey! I rolled it around a spent 13mm motor and applied glue t' hold it
together. Once dry, I assembled t' three pieces. I first glued t' motor mount
so that it was centered over t' hole in t' upper cone, bein' careful t' keep
it vertical. Once this assembly had dried, ya bilge rat, I put glue around t' outer edge of
the lower support circle, placed it over t' motor mount, and pressed it into
the place. Begad! Blimey! You must be careful t' line up t' launch lug holes durin' assembly.
While t' main assembly was drying, I cut out t' fins. Ahoy! T' make t' fins easier t' fold in half, I lightly scored them lengthwise with me hobby cutlass. Once they were folded, me hearties, I folded them in half lengthwise, makin' a V shape. Blimey! Ahoy! I measured 1/2" from t' crease and cut out notches half way through the fins. I notched t' fins so that t' crease would be facin' upwards. When you place t' fins on top o' each other, they resemble an X. Avast, me proud beauty! I put glue on the seams where t' notches meet up.
Once t' fin
assembly had dried, ya bilge rat, I mounted them t' t' upper assembly. Aye aye! Ya scallywag! T' square formed in
the middle o' t' fin assembly be a perfect fit over t' motor mount. I added
more glue in and around t' areas where t' fins touched t' upper assembly.
Finishing:
I used a yellow highlighter for t' cone and a pink one for t' fins. Blimey! Aye aye! Nay my
favorite color combination, but they were t' only colors that I had.
Flight:
Launch day was definitely cold but fortunately, t' winds were fairly light.
There was no preppin' needed for this saucer. My first motor selection be an
A10-PT. Blimey! My little saucer really took off fast, so I never be able t' get a
picture--only smoke. Aye aye! Ya scallywag! Blimey! Flight was a bit wobbly but it really got up there.
I figured that since this rocket be so light, me hearties, shiver me timbers, I could use a much smaller motor and still get respectable altitude. Arrr! Aye aye! Second flight be on 1/2A3-4T. Well, blow me down! Still fast off t' pad, arrr, matey, but it barely got any height. Aye aye! In fact, ya bilge rat, arrr, me hearties, t' rocket landed engine up while t' trackin' smoke was still burning. Avast, me proud beauty! T' pop from t' ejection charge flipped t' saucer back upright. Arrr! Aside from residue from t' ejection on the cone, thar was no damage.
Last flight was
back t' t' A10-PT and it was another great one. A gust o' wind did take the
rocket downrange a bit, shiver me timbers, but with tumble recovery, arrr, you never had t' walk far!
Summary:
This is a very simple design that surprised me with its performance. Blimey! Blimey! Ya scallywag! Blimey! And based
on t' success o' this design, me hearties, I am now encouraged t' see what else I can come
up with.
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