One soda bottle water rocket launcher with adjustable trigger mechanism, launch pad, and operating instructions. Launcher ships 95% preassembled. Screw on the launch post, slip on the trigger collar, thread the string under the pipe, and it is ready to use. Launcher will enable you to propel a 2 liter plastic (PET) soda pop bottle over 350 ft. into the sky using only water and compressed air from a bicycle pump, a foot pump for a car, or an air compressor for tools and painting. Fuel (water and air) is essentially free and readily available allowing countless launches without additional expense. Launcher supports air pressures as low as 20 PSI up to 120 PSI. You will be amazed how high only 40 PSI will propel a bottle with fins attached to it. After pumping up the bottle to the PSI of your choice, you control when the launch occurs by pulling on the brightly colored string to release the trigger from a safe distance and out of the splash zone. Launcher supports most .5L, 1L, 1.25L and 2 liter plastic (PET) bottles. Great item for people of all ages for fun, science projects, school classes, parties and may well draw a crowd where it is used. Made in the USA from durable non-corrosive Schedule 40 PVC pipe. NO additional materials are required such as duct tape, wooden board for base, metal mounting brackets, or expensive pulley for string to operate the trigger. This is a complete launcher. NO gluing, taping, cutting, or measuring required. You will need to supply: Plastic (PET) soda pop bottle, water, air source (bicycle pump, foot pump, or air compressor), 2 tent pegs (wooden stakes, wire hanger, rock, or brick) to keep launcher from moving when the string is pulled. Tools required for assembly and adjustment: Launch post can be screwed on by hand for most people because of the Teflon tape, but if this is too hard then a 1 1/8 in. wrench (or adjustable wrench, channellocks, or pliers) will be necessary. Flat blade screwdriver (or 5/16 in. or 8 mm socket wrench).
R**Y
Water Bottle launcher
Retired System Engineer, Space Program.Spent very little time "fine" tuning the mechanism and sent the first bottle up several hundred feet. The simple design is ingenious.Recommend using fins and modifying the bottle for aerodynamics and >500 feet with about 45+ psi is obtainable. Also recommend launching within a large field as we met some of our neighbors to retrieve our first couple bottle rocket launching from their back yards.Just a little common mechanical skill for fine tuning, finding the best water bottles and/or the use rolled up sand paper to get a good fit and this launcher performs great.Thank you
J**J
Worked great and lots of fun
These worked great for our Boy Scout event--the boys loved it. Worked with most bottles, but not all. We mounted them on a piece of plywood under the foamboard to add strength. We did stake them down as suggested, but the stakes kept coming up--will need to relook at the staking next time.
M**T
Cub Scouts love it
Bought for a bottle rocket set-up for Cub Scouts. Works great and very easy to use. Great design. Suggest to weigh down the base as it will tip occasionally from force of rockets.
K**1
Love it
Bought this for a summer camp to teach the kids the physics of how bottle rockets work. This rig worked great! A minor issue is that sometimes its a REAL tight fit for the bottle used and thus required a bit of force. Otherwise the product worked like it was intended to.
H**I
Unlocks beyond 20 psi
It did not lock the bottle under pressure. I adjusted the lock position, changed between soda bottle types (Coke, Sprite..) and all other suggested adjustments. It would unlock after 20 psi. The locking unit needs to have sight lip to hold under higher pressure.
K**K
Works great
Works great.
N**T
Awesome Product!
Awesome product. I've purchased four of these launchers for my science and math students. Excellent tool for teaching velocity and height. We've done about a hundred launches and have had no issues.
N**E
Quickens our labs...
The launcher is easy for students to use with their rockets. As a teacher this is very important with the number of trials that we need to do and it helps to make the process go so much quicker.
