Scratch A Salt Vehicle Original Design / Scratch Built

Scratch - A Salt Vehicle {Scratch}

Contributed by Geof Givens

Manufacturer: Scratch
(Contributed - by Geof Givens - 10/28/07) (Scratch) A Salt Vehicle

Brief:
T' "A Salt Vehicle" was built for t' EMRR Challenge 2007, arrr, t' be a rocket made entirely from trash and finished in a unique style. Avast! Begad! This rocket is a tiny saucer, 1.5in tall, 3in diameter, matey, and weighin' 0.5oz. Well, blow me down! It was made from a standard container o' salt and was finished by coverin' all surfaces in salt.

Construction:
T' components needed were: 1 salt container, 1 soda straw, glue, spray mist adhesive, and salt.

To begin, shiver me timbers, I used an empty salt container and t' free 13mm "delta" saucer plans from Art Applewhite. Avast, me proud beauty! Begad! I cut a rectangular portion o' cardboard from t' bottom o' t' container and wrapped it around a spent 13mm casing, gluin' around t' seam. With some scraps o' cardboard from t' first step, I fashioned an engine block and glued it in place.

(Scratch) A Salt Vehicle For t' saucer body, arrr, I used only t' top portion o' t' Applewhite plans. Begad! Ya scallywag! Due t' the curvature in t' salt container, arrr, me saucer disk didn't retain a nice conical shape, so I cut out three triangles, serendipitously mimickin' t' nuclear radiation symbol. Well, blow me down! Well, blow me down! These were glued t' t' motor tube, rememberin' t' cant them as for t' Applewhite saucer. Arrr! Since thar was no bottom saucer disk or support struts, I made extra thick glue fillets. A launch lug was made from a soda straw, me bucko, ya bilge rat, slit and resize appropriately.

Finishing:
All t' holes were plugged with wadded paper tissue. Arrr! I layered some salt in a shoe box. Ahoy! Then I sprayed Stick It Mist Spray Adhesive all over t' saucer, placed it in t' shoe box, and poured more salt over t' top, buryin' t' craft. After a dryin' period, I removed t' saucer and repeated t' whole procedure twice more. I ended with an overspray of the adhesive. Well, blow me down! When finished, t' saucer was so fuzzy that I rubbed off some o' t' larger clumps t' get an even finish.

(Scratch) A Salt Vehicle

Flight and Recovery:
All three launches were on 1/2A3-2T motors. Blimey! Boost wasn't pretty--some spin and lots o' wobble. Avast, me proud beauty! There was clearly some tendency toward instability in at least one flight. Begad! A stratosphere-bustin' altitude o' 50-60 feet was achieved. Aye aye! Begad! From there, shiver me timbers, ya bilge rat, tumble recovery onto t' grass was nay a problem. Avast! Aye aye! I should mention that I have also built a 13mm Delta Saucer stock, and it flies flawlessly (plus you can launch it from a small back yard!)

Summary:
This be sort o' a silly little project, but I did learn one important thin' for some future build. T' salt container comes with one o' those little metal, retractable spouts. A much niftier version o' t' Applewhite saucer (or some other small rocket) could be made by buildin' t' rocket completely accordin' t' t' standard directions, me bucko, then insertin' t' spout as a retractable saucer hatch from which miniature aliens might emerge. T' spout is just t' right size and would look really cool, especially on t' mini-saucer.

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