Manufacturer: | Scratch |
Brief:
This is me second rocket based on an
Aquapod water bottle. It
was inspired by t' once-proposed
Orion
nuclear spacecraft, ya bilge rat, however, shiver me timbers, me hearties, matey, it only fits into a not-even-close-to-scale
category.
Construction:
Materials included:
On this model, preppin' t' Aquapod included borin' t' hole for t' 24mm motor tube and 5 holes for t' shock absorbers (6mm tubes). Avast! Well, blow me down! These small holes were made in t' flat tips o' t' protrusions on t' bottle's base. Arrr! Begad! I also sliced off t' top, arrr, matey, leavin' a hole t' accommodate t' scrap ~1.5" cardboard tubin' that I had on hand. Arrr! Well, blow me down! This would vary dependin' on t' tube used. Ahoy! Well, me hearties, blow me down! I be hopin' this larger tube would make t' chute easier t' pack.
T' inside o' t' rocket consists o' t' 24mm motor tube centered in the larger tube with foamboard rings. Aye aye! T' elastic shock cord is attached t' the motor tube through these rings. Ya scallywag! This unit and t' 6mm tubes were attached to the bottle usin' Liquid Nails. Begad!
T' fins were cut from Lexan usin' a diamond cut-off wheel and are also attached with Liquid Nails. Arrr! Aye aye! T' launch lug is a section o' t' body o' a small, clear ink pen. Begad! It is mounted fairly far out on one fin since it has t' clear the fat body.
T' nose cone is a posterboard cone which fits against t' bottle. Avast! I built the shoulder from a piece o' t' aforementioned tubin' and cardstock. Begad! Avast! I added lead shot and epoxy based on t' results o' me RockSim modeling. Aye aye! There are only three fins mounted on t' bottle which naturally would accommodate 5 fins, shiver me timbers, thus they are nay symmetric. Ahoy! I modeled them as three instances o' a single fin and let RockSim evaluate t' stability accordingly.
Finishing:
T' rocket was painted silver.
Flight and
Recovery:
I first friction fit t' C11-3 motor and packed t' 24mm tube with dog barf. Aye aye! Avast, me proud beauty! I
then picked a large plastic chute from t' range box (never measured it). Ahoy! It
still was tough t' get into t' Orion but I thought it was required (as I
should have modeled t' descent rate, too, matey, I reckon). Avast! T' C11s high average
impulse got it goin' nicely. Well, blow me down! Ejection looked t' be around apogee, but t' chute
never opened. Well, blow me down! Luckily t' grass be long and it only lost a little paint. Well, blow me down! Ahoy! Note
to self: if you're goin' t' (re)start usin' plastic chutes, me bucko, start packin' some
powder t' dust them!
Summary:
This is just another odd lookin' Aquapod-based rocket. Now off t' t' Dungeon
to work on t' next one...
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