Manufacturer: | Scratch |
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. 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, me bucko, 1/16" thickness, 5.25" X 3.25" |
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. Aye aye!
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.
T' 10" long, ya bilge rat, 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. 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 ). Aye aye! 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. Begad! Avast, me proud beauty!
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, despite t' fact that the LCO's always refer t' it as a "heads up flight"
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