Water Rocket Launcher Kit

Product Description

Our StratoLauncher IV kit includes a water rocket launcher made of aluminum, stainless steel, durable plastic, & brass parts, a set of StratoFins & collapsible water fill funnel. Assembly is quick & easy with no further adjustments required regardless if you use our StratoFins or your own homemade rocket or FTC (Fluorescent Tube Cover) rocket thanks to the screw-on nozzle. Employing a nozzle makes this a universal launcher for most any style water rocket and eliminates problems such as bottles not fitting over a launch tube, O-rings wearing out, or accidental launches due to falling collars. The restricted nozzle facilitates lift offs that are 3 - 6 times slower (depending on PSI) than typical water rocket launchers enabling you to see the blast off and yet the nozzle rocket will fly equal to or higher in altitude. Also, the nozzle requires only 1 cup of water per launch for optimum performance although you are free to experiment. StratoLauncher IV ships unassembled with a QR code on the box label that you can scan with your smartphone to view a PDF containing assembly instructions, launch procedures, upgrade kits, videos, and future accessories. NO additional materials are required for assembly, but you will need an adjustable wrench (or a 14mm wrench), 4 & 5mm hex wrench, & a Phillips head screwdriver. Our StratoLauncher IV will enable you to propel a 2 liter soda bottle over 350 ft. into the sky using only water and compressed air from a bicycle pump or an air compressor. Fuel (water & air) is essentially free and readily available allowing countless launches without additional expense. You control when the launch occurs by squeezing the black lever and releasing the lock at the end of the cable from a safe distance of 10 ft. and out of the splash zone. StratoLauncher IV comes in 3 models: Standard, Deluxe, and Ultimate. Any of them can be upgraded to add additional features and all come with a 125 PSI safety valve to prevent exploding bottles while pressurizing.

Features

• Easy to assemble metal water rocket launcher with a 125 PSI safety valve. Rocket will NOT fly straight without an aerodynamic nose cone made from a second soda bottle and use only 1 cup (200 ml) of water.
• Kit includes our Gen 4 StratoLauncher + StratoFins (screw-on water rocket fins) + fill funnel. Watch assembly video on this listing at the end of the pictures.
• StratoLauncher IV will propel a 2 liter plastic (PET) soda pop bottle over 350 ft. in the sky. Watch the last minute of the assembly video for launch procedure.
• Supports most .5L, 1L, 1.25L, 1.5L, 2L soda bottles @ air pressures as low as 15 PSI up to 120 PSI.
• Kit is fully upgradeable, expandable, & can be accessorized into a complete launching system for STEM.

Top Reviews

Great for Activities, but essential components (that are easily lost) are not easily replaced
by Tricia Nest (3 out of 5 stars)
August 2, 2018

We purchased this for a Cub Scout event and the boys loved the activity and the launcher worked well, especially when we figured out the water to psi ratio. For this, I highly recommend this product.

The only negative is that one of our bottles flew off into the woods, and landed in a tree. We were unable to find the rocket in the woods, and when we came back online to purchase just the fins and the black adapter that fits on the bottom of the fins, and it appears that we cannot purchase the adapter. Meaning we need to search for a suitable substitute or potentially purchase an entire new launcher for an inexpensive piece of plastic, which is frustrating.
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Nice rocket
by Eric W (4 out of 5 stars)
December 22, 2018

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.
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Flat out awesome!
by Andrew R (5 out of 5 stars)
July 27, 2019

This water rocket launcher blew our minds during that first launch! We couldn't believe it when we saw that rocket take off into the sky. My kids loved it. I played with a neighbors water rocket back in the 70s so this brought back memories for me. I'm handy so putting it together was a breeze. You should really find an open field for this launcher so the rocket want land on a neighbors house or car, as it goes up very high. Customer service from Relationshipware is also excellent and very responsive! Great product, great fun, and great support!!!
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Responsive Company
by Janet (4 out of 5 stars)
September 2, 2019

I don't have a lot to compare this launcher to since it's the first one I've purchased. However, the handle to trigger the launch broke on the second launch. Fortunately, my co-teacher was able to quickly find a solution so we were still able to launch the rockets.

Update: I reached out to the company directly and let them know about the problem. They were able to send a replacement part so we could continue to use the product in its intended way.
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Very well designed. Very cool. Safe and easy.
by Chance P. (5 out of 5 stars)
November 14, 2017

Pair it with a cheap 12v air compressor(11$) and small 12v jump start battery(30$). You can launch rockets all day without pumping. The trick nozzle uses less water too so you only need a gallon of water to launch ~10 times with a 2L and 20+ with a 20oz. It shoots about as high as an Estes B size engine. Great reusuable entertainment.
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Fun, but release lever is too cheaply made, replacement parts are expensive
by B. Reasonable (4 out of 5 stars)
July 18, 2018

Fun and amazingly high launch, but plastic replacement parts are expensive and the brake handle release mechanism is very cheaply made leading to anticlimactic moments. Find a better brake handle supplier and lower your replacement fins cost to $5-6 and this would be a winner in all categories.
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sweet
by Roscoe Foilhat (4 out of 5 stars)
July 19, 2017

works great after all, took for ever to make adjustments to the launcher release and release cable, instructions are clear as mud but other tha that it works great
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A quality product, but requires tweaking.
by B Cook (4 out of 5 stars)
October 7, 2019

The instructions could be clearer, and more accurately reflect the product as delivered. Especially regarding sealing the threaded metal connections. They all required the Teflon tape in spite of instructions stating otherwise. Some Vaseline or other waterproof grease on lip of soda bottle will seal leakage at StratoFins, a rubber washer there would be helpful. Once all the leaks are sealed, product performs great.
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Missing half of the pieces
by Monroe85 (1 out of 5 stars)
April 13, 2019

Came missing the tilting ball head, pressure gauge and hose Q- release. Not helpful when doing a homework project over the weekend and all of the pieces are missing!
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Great fun
by kdubbs (5 out of 5 stars)
November 4, 2018

Great product and hours of fun. Me and my kids will get the portable compressor and a jug of water and have a blast for hours

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