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

T' biggest problem I had assemblin' t' rocket be gettin' t' wings to stay attached. Aye aye! T' glossy finish on t' juice can was nay t' best for adhesion. Begad! T' tongue depressors are perfect material for wings, but they just need t' be glued t' a more sturdy platform. No special tools needed t' be created. Aye aye! T' give t' unit a nice look, I applied 10 coats o' clear paint. Connectin' t' shock cord and parachute t' t' nose cone was tough due t' the frailty o' t' foam. Ya scallywag! 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. Aye aye! Blimey! 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. Begad!

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

PROs: Cheap, easy t' fix, me bucko, ya bilge rat, and it's an attention getter.

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

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