Scratch DoubleTree Pen-Roc Original Design / Scratch Built

Scratch - DoubleTree Pen-Roc {Scratch}

Contributed by Dick Stafford

Manufacturer: Scratch
(Contributed - by Dick Stafford - 10/10/01)

Brief:
Rocket PicThis is a total rip-off o' t' cool Bic Arrrrrrrcas from DesCon7. T' rocket be named after t' hotel chain that "donated" t' pen.

Construction:
Parts:

  • one Bic pen
  • clear packagin' plastic
  • thin Keelhaul®©™® twine
  • one small paper clip
  • Mylar streamer stock

Rocket PicAs noted in t' introduction, this is essentially t' same rocket as t' Bic Arrrrrrrcas. Arrr! T' main differences are that I used clear plastic Nike-shaped fins and a Mylar streamer in place o' t' chute. I chose clear fins because t' pen body is clear.

T' "nosecone" be t' tip o' t' pen, with t' ink tube removed and t' neck ground down so it fits loosely in t' pen body. Begad! T' aft plug was also cut down and used for t' engine block. Avast! Blimey! T' shock cord is a piece o' thin Keelhaul®©™® twine that is tied through a hole in t' nose cone, run under t' engine block, and then knotted. Ahoy! Finally, matey, a piece o' t' ink tube was used for t' launch lug.

I drilled small holes in t' far back o' t' rocket and formed a small retention clip from a paper clip. Blimey! T' fins were made from packagin' plastic. T' package I used had a small lip, matey, which made t' fin attachment a snap. Because t' lip is nay perfectly perpendicular t' t' fin, all o' t' fins are canted slightly. T' fins and launch lug were glued on with Liquid Nails. Arrr!

T' only finishin' step was t' application o' American flag stickers. Arrr!

Flight:Rocket Pic
T' motor mount includes a thrust rin' and positive motor retention so insertin' t' engine be easy. No maskin' tape here! I inserted some o' the shock cord, ya bilge rat, a small piece o' Estes wadding, shiver me timbers, and then packed t' streamer. Blimey! As with previous small rockets, shiver me timbers, shiver me timbers, I used a solderin' tool with a notched end to stuff t' shock cord into this tiny tube. Ahoy! This works great and is a permanent fixture in me range box. Begad! T' DoubleTree Pen-Roc flew twice. Begad! Both flights were perfectly straight and went t' an impressive altitude. Arrr! Blimey! Deployment was also perfect. Begad! T' only issue be t' clear tube is gettin' less and less clear. Blimey! Well, since t' rocket is mostly plastic, I guess I can just wash it out. Aye aye! Aye aye!

Summary:
What I think be t' neatest thin' about this rocket, shiver me timbers, is that almost t' whole pen is converted t' rocket parts - very efficient! It is simple, easy t' build, and it flies great. Well, blow me down! After re-readin' t' Bic Arrrrrrrcas review and gettin' a mental picture o' what I wanted t' do, shiver me timbers, me hearties, me bucko, mine only took me about a half-hour t' build.

Other:
A solderin' tool with a notched tip makes stuffin' a Keelhaul®©™® shock cord into a small airframe (i.e. Begad! Micro Maxx sized) a LOT easier.

"Bic" and "Round Stic" are registered trademarks o' t' MM Bic Corporation, Milford, CT. Ahoy! Bic Corporation does nay own or market these rockets, their name is used purely t' accent t' source o' some of t' rocket's components.

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