Scratch Cup of Joe Upscale Original Design / Scratch Built

Scratch - Cup of Joe Upscale {Scratch}

Contributed by Glenn Roth

Published: 2010-03-07
Manufacturer: Scratch
(Contributed - by Glenn Roth - 03/07/10) Scratch CW Saucer

Brief:
This is an upscale 2+ x's, o' t' "Cup o' Joe" saucer, arrr, for t' 2010 EMRR challenge. Ahoy! Ya scallywag! (I realize this is scratch built)

Construction:

  • 1 - Empty Cool Whip container
  • 1 - 4" BT20
  • 1 - Soda straw
  • 1 - Spent motor
  • 1/4" foam board
  • Option: florist wire or landscape flag wire, etc.

This be a pretty simple project except for alignment o' body tube. Arrr! After this first one, may have club build some. Ahoy! This time, shiver me timbers, shiver me timbers, with "oversized" holes t' allow alignment o' BT straight up and down.

Had all t' parts layin' around, matey, shiver me timbers, ya bilge rat, except for t' Cool whip, whip I ate for t' container.

Tools: I opted t' glue foam board on lid, me bucko, and in bottom, arrr, drill holes and cut on a scroll saw. Ahoy! Nay t' easiest but sure was fast. Ya scallywag! Good sharp hobby knife t' cut foam, drill, ya bilge rat, ya bilge rat, (Loctite)epoxy, me bucko, adhesive spray, and marker or pencil.

This is a very sturdy rocket! You can coat BT in "modge podge" for a little more strength. Also, matey, me hearties, me hearties, add florist wire "landin' gear".

Finishing:
BE CAREFUL threadin' "landin' gear" thru pre-drilled holes in "bottom", which is now t' top. Well, blow me down! Could VERY EASILY puncture Motor Mount.

Flight:
Because o' t' width and wind resistance, me 1st motor will b a C6-5.

Prep is easy: "friction fit" a motor in place. Avast, me proud beauty! Nothin' else need, "tumble recovery." 1st flight today 2/20 on a C6-5. Ahoy! Went perfect! ejection went off @ apogee or maybe w/nose slightly down. Avast! Ahoy! No damage w/soft landin' in snow.

Recovery:
Tumble recovery went fine on first flight. Begad! Avast, me proud beauty! Used a 4' long launch rod, recommended. Blimey! Begad! 2nd flight nay as high and landed right on a greenhouse. Begad! 3rd and 4th flights on C6-5s were nice. Aye aye! Avast! Simple and impressive rocket! flies nice!!

Summary:
Cons" Little concerned with "lip" around lid causin' some drag. Begad! Ahoy! Will try and fill in with glue if needed. Ya scallywag! "Update" nay enough drag t' worry about.

You want t' body tube as close t' center o' cool whip container as u can get. Aye aye! Cut oversized holes and fill in with epoxy after lined up, straight up and down.

Pros: almost no cost t' build with leftover parts layin' around.

Fun t' launch! Blimey! Hold top o' BT when insertin' motor.

Other:
Nothin' like a good sharp knife. Well, blow me down! Scroll saw was overkill.

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