StratoLauncher IV Water Rocket Launcher + StratoFins

This is a very nice, high-quality set. It's a bit pricey, so I held off purchasing this for quite some time, but with the recent hot weather, this is a great treat for playing at the park with my son. The video directions could use a slight correction since the release cable was a bit tricky to attach they way it was shown... it was much easier to attach the cable on the base end first and then to the hand caliper. Also, the release cable holder on the base was also pre-attached upside down, so that had to be reattached properly using a tiny hex wrench. Otherwise, a very nice high-quality water rocket launcher. Our maiden launch at 90 PSI took our 1-liter bottle to amazing heights... we almost lost our rocket since we weren't in a large enough space for recovery. Make sure you only use this in a very large, wide open space such as a large park or field. Fun to watch for kids 5 and up. This is a great toy and can be educational for older kids 12 and up if you discuss the principles of propulsion and use some simple tools to calculate the height at apogee. NASA has a nice little website where you can print-out materials to create tools to do just that. Due to the higher air pressures this kit can attain, it is best actually operated by older kids 13+ under adult supervision or by adults. Have fun!

Instructions faciles à suivre, pièces de qualité et résultat franchement impressionnants du premier coup. Attention aux journées venteuses! La fusée va vraiment très haut et si vous utilisez le parachute, elle peut facilement se retrouver à plus de 500 m de sa rampe de lancement et atterrir sur un toit de maison ou dans un arbre.

Bought it for a school project. Very sturdy and will use it for years to come

We bought the Water Rocket Launcher for our granddaughter. She loves it! It will launch the large 2 liter bottles as well as smaller bottles. We are having lots of fun trying out different bottles & various amounts of water & air pressure for the launch.

Worked better than expected. Relatively easy to assemble and launch. Took off over 200 feet! Durable and reusable. I think you could get alot of parts or rig parts from a hardware store or bicycle shop if necessary. Timely delivery. Will require 2 soda bottles 2 liters. Issues that I came across was it kept leaking at all of the fittings which made it difficult to keep pressure. The instructions mention not to add anymore sealant than what was provided. I think because the threads were so thin. Each fitting came with red sealant already applied. The kit should have come with more. This one did not come with a parachute which at the heights it will go should have because once it hit the ground it was finished. Second launch curved from what believe to be damage from the launch prior. Ground pins to keep the base stable would have been nice. It also came with no instructions. You had to go online for them. I don't know why they couldn't put a simple piece of paper in the box. Extra fins would also be nice seeing after it slams back into earth it increases the chances of them breaking. Would still recommend just needs some improvements. This is not an elementary kit. Would say more advanced.