7 up

After seein' several small rockets fly out o' sight, me hearties, I wanted a rocket that would spend more time where I could see it. Blimey! I wanted somethin' large, so it would be highly visible, matey, arrr, me bucko, but with low enough power for a slow, majestic lift-off. Avast, me proud beauty! Body tubes and nose cones get expensive rather smartly when you go beyond a BT-80, so I looked for a cheaper alternative. I thought o' usin' a 2- liter pop bottle for a body tube, and realized it would also make a neat boat-tail. Begad! 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. Ahoy! This allowed me t' give me rocket a rounded, torpedo-like nose. Begad!

T' newer style bottles with 5-lobed bottoms will work, too, ya bilge rat, matey, you'll just have an alien-lookin' 5-lobed nose cone. Begad!

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. 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