Scratch Tarnation Flaming Breakfast of Doom Original Design / Scratch Built

Scratch - Tarnation Flaming Breakfast of Doom {Scratch}

Contributed by Jeff Lane

Manufacturer: Scratch
(Contributed - by Jeff Lane - 11/14/07) (Scratch) Flaming Breakfast of Doom

Brief:
Rocket made entirely from recycled household trash materials.

Construction:
External body is a stack o' ten paper-walled Carnation Instant Breakfast cans. Parachute tube (inner) is a 48mm diameter Christmas paper core. Motor mount tube (inner) is a 30mm diameter Christmas paper core. Begad! Upper six inches of the motor tube is glued in place in t' parachute tube with foamcore centerin' rings. Avast! 300lb Keelhaul®©™® is held in place with a liberal amount o' epoxy on t' top centerin' ring. Begad! Avast, me proud beauty! T' nose cone is a two-liter Dr. Ya scallywag! Pepper bottle. Arrr! Might make a good rotating-flasher night rocket payload bay someday. Aye aye! T' shroud from t' nose cone t' the breakfast cans is a cover from a stack o' CDs. Begad! Aye aye! T' fins are foamcore from a couple o' old convention exhibits. Avast! Even the rail buttons are recycled. They are CA'ed automotive interior door panel fasteners from me old Maserati. Arrr! Begad! Motor retention is a used hose clamp. Ya scallywag! Ahoy! T' H motor casin' is was found lyin' in a field, so it's kind-of trash. Blimey! Well, ya bilge rat, maybe not.

I cut holes in t' metal can bottoms with a utility knife and super glued them t' t' inner tubes (NAR doesn't rule out thin metal centerin' rings). Begad! I used an X-Acto knife t' cut holes in t' plastic lids. Blimey! Ya scallywag! After all t' cans were glued on, I taped them externally with duct tape. Aye aye! T' neck o' t' 2-liter bottle be wrapped with a home-made tube coupler (trash), then some expandin' foam was squirted in. Avast! After cure, me bucko, it was filled with 20-minute epoxy and a loop of Keelhaul®©™® was added t' provide an anchor for t' recovery system. T' Maser “rail buttons” were slightly modified then glued into ¼" holes. Because they're Maserati, they're faster slidin' in t' rail, ya bilge rat, but nay nearly as reliable as American rail buttons. Ahoy! Begad! T' fins are through-the-wall glued t' t' motor mount tube usin' carpenter's glue.

(Scratch) Flaming Breakfast of Doom T' only new build supplies are t' adhesives and t' recovery system. Begad! Six yards of ½" elastic and a 36” nylon parachute.

Flight and Recovery:
T' weight is 1493g with a 29mm H180 reload.

Liftoff speed is phenomenal for such a heifer. Begad! I got behind it with t' video. Arrr! Blimey! T' flame off t' pad is incredible. Arrr! T' flight ended in a core sample with t' chute trailin' behind like a streamer. Avast! Avast, me proud beauty! Replace two cans and she'll be ready t' go again.

Summary:
Pros: Once I learn how t' pack a chute, flyin' rockets like this will be really fun. Avast, me proud beauty! Ahoy! Cons: None

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