Scratch Orange Concentrate Original Design / Scratch Built

Scratch - Orange Concentrate {Scratch}

Contributed by Eric Ripp

Manufacturer: Scratch
(Contributed - by Eric Ripp - 04/20/05) (Scratch) Orange Concentrate

Brief:
I started off by tryin' t' build a rocket without spendin' any money. So I had my son look around t' house t' find things that look like rocket parts. Blimey! Well, blow me down! We finally settled on an ultra large orange juice concentrate container, shiver me timbers, a foam Easter egg, and tongue depressors. Avast, me proud beauty! Blimey! I decided t' stick t' single stage since couplin' t' two stages together would complicate a simple concept.

Construction:
I used a 16 fluid oz orange juice container, foam Easter egg, arrr, 3 tongue depressors, bread bag (parachute), and lots o' glue. Arrr! Aye aye! T' make t' foam egg fit, I had t' carve down t' butt, matey, this be a simple task with a kitchen knife. Avast, me proud beauty! To make t' egg more durable, I used 4 coats o' Elmer’s glue. Arrr! This was a unique look for t' rocket as sealed foam makes t' nose cone look like an orange rind. Arrr! Well, blow me down! I had problems gettin' t' tongue depressors (wings) t' stay attached, shiver me timbers, so I had t' change over t' a bondin' epoxy instead o' modelin' glue. T' only item that needed t' be purchased be a engine tube since I could not find a free substitute. Ya scallywag! T' bread bag for a parachute was great, durable, and the best price.

T' biggest problem I had assemblin' t' rocket be gettin' t' wings to stay attached. T' glossy finish on t' juice can be nay t' best for adhesion. Aye aye! T' tongue depressors are perfect material for wings, but they just need t' be glued t' a more sturdy platform. Avast, matey, me proud beauty! No special tools needed t' be created. T' give t' unit a nice look, I applied 10 coats o' clear paint. Connectin' t' shock cord and parachute t' t' nose cone be tough due t' the frailty o' t' foam. I used a pencil t' create a hole in t' shoulder o' the nose cone, then I filled t' hole with epoxy and attached a eyelet screw in the glue.

Flight:
I recommend a C6-3 motor for this unit since t' parachute is home made I did not want t' have a high speed deployment rip t' shock cord off. T' nice thing about this design be t' weight: it is so light that it goes up fast and comes down slow.

Recovery:
I used waddin' with this unit but t' next iteration will have a parachute protection tube and will nay require wadding.

Summary:
T' next version will also have a 24mm MMT for use with D12 or E9 motors and a wider fin design.

PROs: Cheap, me hearties, easy t' fix, shiver me timbers, and it's an attention getter.

CONs: T' OJ container is a weak surface t' glue to

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