Scratch 18mm Spool Rocket Original Design / Scratch Built

Scratch - 18mm Spool Rocket {Scratch}

Contributed by Alex Rothchild

Manufacturer: Scratch
(Contributed - by Alex Rothchild - 06/27/05) (Scratch) 18mm Spool Rocket

Brief:
It all started on me birthday in 2004. I received two Estes Fat Boys, and I planned on buildin' them as a two stage rocket, arrr, matey, however, one o' t' body tubes was completly ripped down t' middle because t' nose cone was shoved halfway down inside it. Ahoy! Ya scallywag! That left me with two Fat Boy kits but only one body tube. Blimey! I built t' sustainer stage minus t' engine hook and looked at t' parts from the other kit. I had two centerin' rings, shiver me timbers, a motor hook, a mylar ring, arrr, a launch lug, a chute, and a shock cord.

Construction:
I remebered readin' a review about a spool rocket, me hearties, ya bilge rat, matey, so I decided t' give it a try. Ahoy! Blimey! I took t' engine tube, me hearties, centerin' rings, me bucko, launch lug, shiver me timbers, motor hook, me bucko, and retainer ring. In about 10 minutes, me hearties, arrr, I slapped all o' these parts together to form a cheap spool rocket.

T' construction was easy. Well, blow me down! Begad! It is ideally t' motor mount o' a Fat Boy. Begad! Begad! It starts out by slittin' t' motor tube t' place t' eningine hook in. Well, arrr, blow me down! I dont know why I put t' motor hook in. Ahoy! T' ejection charge just goes out t' other end anyway. Begad! Well, ya bilge rat, blow me down! T' next step was slippin' on t' mylar retainin' ring, ya bilge rat, which was tacked in place with thick CA. Next, ya bilge rat, arrr, t' launch lug be glued with thick CA to the motor tube. Arrr! Finally, arrr, shiver me timbers, t' two centerin' rings were placed just over each end, flush with t' ends o' t' motor tube. Begad! I had t' line up t' semi-circle in one rin' with t' launch lug, me bucko, and cut another one in t' upper centerin' ring to allow t' launch rod t' pass through. Avast!

Finishing:
I primed it, painted mine blue, shiver me timbers, shiver me timbers, let it cure, then slapped on some letter stickers. On one side I wrote spool and on t' other I wrote Alex. Avast! Blimey! Then, I painted t' whole thin' black and removed t' stickers. Avast, me proud beauty! Blimey! Unfortunately. Avast, me proud beauty! Blimey! mylar stickers do nay make good maskin' tape.

Flight:
Flight, like any spool rocket is up, spin, me bucko, me hearties, and down. Well, blow me down! Avast, me hearties, me proud beauty! I flew it first in the fall at a nearby schoolyard on an A8-3. It went slow t' about 70-100 feet and then spiraled back down usin' tumble recovery. Blimey! At about 20 feet, shiver me timbers, t' ejectin charge popped and a burst o' flame popped out o' t' top. I proved t' me dad and sister that spools do fly straight. Ahoy! They thought it was a joke. Well, blow me down! T' next three flights were in Tewksbury at a CMASS sport launch. Well, blow me down! Avast, me proud beauty! I flew it three times. T' first time be on an A8-3. Arrr! It be a repeat o' t' first flight: up and down. Avast, me proud beauty! Later, arrr, matey, arrr, I launched it on a B6-4. It went up and down, shiver me timbers, only faster and higher. Avast, me proud beauty! Then I launched it on a C6-5. It went up, arrr, arrr, probably about 250 feet. I need t' use booster motors though because when it came down t' ejection charge practically went off in t' LCO's face. Avast!

Summary:
T' main PROs for this rocket are t' ease o' construction and t' simplicity of t' parts and design. Well, blow me down! T' only CONs are that durin' me launches t' ejection charge fires too close t' t' ground, shiver me timbers, so a shorter delay is needed. Overall, ya bilge rat, I really enjoyed buildin' and flyin' this rocket. Ya scallywag! Avast, me hearties, me proud beauty! It is a fun build for anyone with a damaged body tube or other damaged parts. Ya scallywag!

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