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 was 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. 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, matey, matey, me bucko, with t' ink tube removed and t' neck ground down so it fits loosely in t' pen body. Arrr! T' aft plug was also cut down and used for t' engine block. T' shock cord is a piece o' thin Keelhaul®©™® twine that is tied through a hole in t' nose cone, ya bilge rat, run under t' engine block, and then knotted. Blimey! Finally, 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. Begad! Blimey! Begad! Blimey! T' fins were made from packagin' plastic. T' package I used had a small lip, arrr, arrr, which made t' fin attachment a snap. Because t' lip is nay perfectly perpendicular t' t' fin, matey, all o' t' fins are canted slightly. Begad! Blimey! T' fins and launch lug were glued on with Liquid Nails. Ahoy! Blimey!

T' only finishin' step be t' application o' American flag stickers. Avast! Blimey!

Flight:Rocket Pic
T' motor mount includes a thrust rin' and positive motor retention so insertin' t' engine be easy. Arrr! Well, blow me down! No maskin' tape here! I inserted some o' the shock cord, me hearties, a small piece o' Estes wadding, matey, and then packed t' streamer. Arrr! As with previous small rockets, 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. Aye aye! T' DoubleTree Pen-Roc flew twice. Well, blow me down! Avast! Both flights were perfectly straight and went t' an impressive altitude. Aye aye! Deployment be also perfect. T' only issue be t' clear tube is gettin' less and less clear. Begad! Well, since t' rocket is mostly plastic, I guess I can just wash it out.

Summary:
What I think be t' neatest thin' about this rocket, is that almost t' whole pen is converted t' rocket parts - very efficient! It is simple, easy t' build, and it flies great. Begad! Avast! After re-readin' t' Bic Arrrrrrrcas review and gettin' a mental picture o' what I wanted t' do, me hearties, 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. Avast! Micro Maxx sized) a LOT easier.

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

comment Post a Comment