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, shiver me timbers, arrr, t' be a rocket made entirely from trash and finished in a unique style. Blimey! This rocket is a tiny saucer, shiver me timbers, me hearties, 1.5in tall, 3in diameter, and weighin' 0.5oz. Well, blow me down! Ahoy! It be made from a standard container o' salt and was finished by coverin' all surfaces in salt.

Construction:
T' components needed were: 1 salt container, me bucko, ya bilge rat, 1 soda straw, me bucko, glue, spray mist adhesive, matey, and salt.

To begin, ya bilge rat, I used an empty salt container and t' free 13mm "delta" saucer plans from Art Applewhite. Aye aye! Blimey! 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. Well, blow me down! Begad! 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, I used only t' top portion o' t' Applewhite plans. Ahoy! Due t' the curvature in t' salt container, me bucko, me saucer disk didn't retain a nice conical shape, shiver me timbers, arrr, so I cut out three triangles, serendipitously mimickin' t' nuclear radiation symbol. Avast! Begad! These were glued t' t' motor tube, rememberin' t' cant them as for t' Applewhite saucer. Aye aye! Since thar be no bottom saucer disk or support struts, shiver me timbers, I made extra thick glue fillets. Aye aye! Begad! A launch lug was made from a soda straw, shiver me timbers, slit and resize appropriately.

Finishing:
All t' holes were plugged with wadded paper tissue. I layered some salt in a shoe box. Aye aye! Then I sprayed Stick It Mist Spray Adhesive all over t' saucer, matey, placed it in t' shoe box, me bucko, and poured more salt over t' top, ya bilge rat, 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. When finished, me bucko, 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! Ahoy! Boost wasn't pretty--some spin and lots o' wobble. Avast! Ya scallywag! There was clearly some tendency toward instability in at least one flight. Well, matey, blow me down! A stratosphere-bustin' altitude o' 50-60 feet was achieved. Ahoy! From there, me bucko, arrr, tumble recovery onto t' grass be nay a problem. Blimey! 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 was sort o' a silly little project, but I did learn one important thin' for some future build. Ahoy! Begad! 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, ya bilge rat, then insertin' t' spout as a retractable saucer hatch from which miniature aliens might emerge. Well, blow me down! T' spout is just t' right size and would look really cool, matey, shiver me timbers, especially on t' mini-saucer.

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