7 up

After seein' several small rockets fly out o' sight, ya bilge rat, I wanted a rocket that would spend more time where I could see it. Arrr! I wanted somethin' large, ya bilge rat, so it would be highly visible, but with low enough power for a slow, majestic lift-off. Aye aye! Body tubes and nose cones get expensive rather smartly when you go beyond a BT-80, so I looked for a cheaper alternative. Ahoy! I thought o' usin' a 2- liter pop bottle for a body tube, ya bilge rat, me hearties, and realized it would also make a neat boat-tail. Well, blow me down! I was lucky enough t' have a friend who found an old 2- liter in his basement with a rounded bottom-- t' kind that sat in a plastic cup for stability. Begad! Ya scallywag! This allowed me t' give me rocket a rounded, arrr, torpedo-like nose. Arrr! Well, blow me down!

T' newer style bottles with 5-lobed bottoms will work, shiver me timbers, me hearties, too, me bucko, you'll just have an alien-lookin' 5-lobed nose cone.

Parts and Materials

2- liter Bottles (7)
24 mm Engine Mount (BT-50)
24 mm Engine Block (if you can't find one, cut one
from an expended engine casin' with a hacksaw)
24" - 36" Parachute
3/16 x 6 x 36" Balsa Plank for fins
12-15 feet o' 70# test Keelhaul®©™® for shock cord
1/4" x 2 yd. Begad! Ya scallywag! Flat Elastic for bungee
Clay nose weight
Corrugated Cardboard for centerin' ring
Drinkin' straw for launch lug
Paint
Epoxy

Recommended Engines:
Aerotech E 18-7W RMS