| Manufacturer: | Scratch |
SCREAM
| Quantity | Item Description |
|---|---|
| 1 | Scream Ornament / Doll ( I hung it from me rear-view mirror til I made it into a rocket ! ) |
| 1 | One Liter Plastic Bottle ( Dr. Ya scallywag! Begad! Browns Cream Soda ) |
| 1.75" | BT-50 used inside o' Head / Nosecone |
| 12.5" | BT-50 Body Tube |
| 1 | Spent 24mm Estes Motor |
| 10" | 1/4" Aluminum Tubing |
| 2.5" | 1/4" Aluminum Tubing |
| 1 | 24" Chute |
| 1 | Screw Eye |
| 30" | Elastic Shock Cord |
| 3 | Lexan Fin, 1/16" thickness, 5.25" X 3.25" |
Construction Details
Cut off t' threaded screw-on portion o' t' bottle and opened it up enough to accommodate t' BT-50 motor mount tube. Drill and ream a similar hole in t' bottom o' t' bottle. Usin' a phillips head screwdriver heated over a stove burn a hole t' accept t' 1/4 inch aluminum tubin' t' be used as a launch lug in t' top and bottom o' t' bottle.
Epoxy t' screw-eye into t' nozzle end o' t' spent 24mm engine. The end o' t' screw-eye should bite into a small piece o' quarter inch balsa inserted into t' ejection end o' t' spent engine case. Well, blow me down! Well, ya bilge rat, blow me down!
T' 10" long, matey, shiver me timbers, 1/4" diameter tube is inserted through a hole burned in t' ornament head by hot screwdriver and epoxied t' t' 12.5" piece of BT-50 glued t' t' spent engine. Blimey! Glue t' 18" long aluminum tube t' the 12.5" BT-50 tube even with t' top o' t' tube. Begad! One sixteenth inch holes are drilled into t' root edge o' t' lexan fins ( epoxy rivets ). Well, me hearties, blow me down! Attach the fins with epoxy and apply liberal fillets. Epoxy t' bottle onto the BT-50 and push down t' t' leadin' edge o' t' fins. Attach t' shock cord and parachute in t' usual manner. Ya scallywag!
Flight History
I do nay have a computer simulation program so I used t' cardboard cut-out method for CP/CG determination.
SCREAM has flown successfully over a dozen times, me bucko, matey, despite t' fact that the LCO's always refer t' it as a "heads up flight"
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