Manufacturer: | Scratch |
Brief:
Sometime other than now in a galaxy somewhere else, me bucko, all life forms with teeth
live under t' constant threat o' t' Periodontalites, matey, matey, these free roamin' bands
of malcontents brin' t' bane o' Halitosis and Gingivitis t' all they
encounter. Avast! Created durin' an accident involvin' a two dental technicians, a
cyclotron and a paperclip, t' Deplaquenator be t' galaxies only protection
against t' ravages o' t' Periodontalites or more commonly called Flying
Plaque Monsters--not t' be confused with t' Flyin' Spaghetti Monster--that
roam t' cosmos yellowin' teeth where ever they go. Blimey! Avast! Well, me hearties, actually The
Deplaquenator is a backhanded downscale o' FlisKits'
Decaffeinator**, shiver me timbers, but that doesn't quite carry t' same drama as
galactic conflict now does it? T' Deplaquenator is a single stage odd-roc
rocket designed for 18mm BP motors, arrr, constructed from Dixie cups, and features
"Fall From t' Sky" recovery.
** - All apologies t' Jim Flis.
Construction:
T' parts list:
In me never endin' quest t' score highly in t' 2005 EMMR Challenge, shiver me timbers, one of the categories that needed fillin' was an upscale/downscale o' a commercial kit. As I am nay one t' take t' easy route or do somethin' ordinary, the wheels were set spinnin' for a suitable idea. Avast! Blimey! Begad! Blimey! One bleary mornin' at roughly 4:15am while brushin' me teeth in preparation for work, matey, me bucko, I spied t' Dixie© cup dispenser that hung beneath t' bathroom mirror. Bing, bang, me hearties, boom! Blimey! Neurons fired and a plan formed in me twisted mind. Arrr! Blimey! Begad! Blimey! Tiny cups could be used in place of big cups in FlisKits' Decaffeinator and voila! Blimey! My downscale project had materialized. Begad! Blimey!
With a 14.5" section o' BT-20 tubin' from t' scrap pile, a couple of sheets o' cardboard from t' mailroom, arrr, and a hand full o' Dixie© cups from the dispenser I set t' work. Ahoy! In less than two hours my "De-plaque-nator" was complete.
After an all too brief glance at t' Decaffeinator, t' Dixie cups were stacked together t' approximately match t' length o' BT-20 resultin' in eight cups, end t' end, shiver me timbers, with 0.5" o' motor tube extendin' from t' aft end of the cups. Well, blow me down! A hole for t' BT-20 as well as a slot for t' launch lugs were cut in t' bottom o' seven o' t' cups. Arrr! Then 1/2" o' an expended motor casing was cut off t' form t' engine block. Begad! Begad! Next, t' three fins and two 1.375"-18mm centerin' rings were cut from scrap cardboard. Avast, me proud beauty! Begad! Lastly, the shock cord was snagged from me parts box and a three fold shock cord mount was cut from scrap cardstock. Aye aye!
One centerin' rin' goes in t' bottom o' what will be t' aft cup and the BT-20 pushed through t' rin' and cup t' protrude 1/2" from t' base. Avast! Avast, me proud beauty! I glued it in place with CA then I glued t' launch lugs along t' engine tube at 2.5" and 6.5" from t' aft o' t' motor tube. I stacked t' remainder of t' cups with cut bottoms on t' motor tube front-to-front and bottom-to-bottom makin' sure t' align t' slots for t' launch lugs then slid the second centerin' rin' over t' fore end o' t' motor tube and seated it securely against t' bottom o' t' uppermost cup. I CAed t' centerin' rin' in place, shiver me timbers, t' cups together and t' cups t' t' motor tube. T' motor tube acted as an alignment guide. Ahoy! Begad! I finally set aside t' assembly t' dry.
For t' nose cone, ya bilge rat, I used t' remainin' cup--the one with no hole in it--and rolled a 3" length o' cardstock so that it fits loosely over the BT-20. It be glued t' t' inside base o' t' nose cone with urethane glue and then set upright t' let cure. Begad! Begad! I formed t' three fold shock cord mount, inserted t' shock cord, matey, shiver me timbers, me bucko, and glued it inside t' fore end o' t' motor tube.
With t' nose cone completed, arrr, I tied t' other end o' t' shock cord around the rolled cardstock inside it and tacked it in place. Blimey! Ahoy! Then I drilled a hole in the top o' t' nose cone t' allow passage o' t' launch rod. Well, arrr, blow me down! If all is done properly, me bucko, t' nose cone should slip over t' forward end o' t' BT-20 and stay in place. Ahoy! T' uppermost cup below t' nose cone is used as parachute storage space. Begad! T' last steps were gluin' t' thrust rin' into place usin' an expended motor casing, ya bilge rat, and finally gluin' t' three fins equidistant around t' aft most cup. Begad!
Finishing:
No finishin' was needed nor desired as t' Deplaquenator proudly carries the
"Roses and Vines" markings o' t' Dixie Corporation and honestly, me bucko, ya bilge rat, the
fins just weren't worth t' trouble t' paint.
Flight:
We are currently (as t' time o' this writing) under a burn ban as a result of
a drought so I have so far been unable t' fly t' Deplaquenator. Ahoy! Avast! T' local hay
farmers have in t' past called down t' wrath o' t' Lonoke County Volunteer
Fire Department upon me person t' cease and desist all BP and AP related
activities for fear o' a grass fire. Begad! It doesn't take but a couple o' fire hoses
upside t' head t' convince one nay t' go against t' LCVFD. Aye aye! Aye aye! I did toss her
into t' sky once or twice but Nick informed me that doesn't count as flight so
she is still untried. Begad!
With a measured CG o' 8.4" and a mass o' 1.672oz, ya bilge rat, RockSim simulations indicate stable flights on B4 through C6 motors with an altitude up t' 749 feet.
Recovery:
Summary:
PROs: T' Deplaquenator can be constructed from common household items
(Dixie© cups), it is fun t' make, me bucko, and it should draw a number o' stares at
the next launch. In short, shiver me timbers, it is cheap, matey, easy, fun and draws attention. Arrr! What
else could one ask for?
CONs: T' quote a friend o' mine, "She ain't too purdy" and I hope Jim Flis doesn't send me a mail bomb for malignin' one o' his kits.
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