Boy Scouts of America

Water Bottle Rockets

SUMMARY

So you want to launch a water bottle rocket. These pressurized rockets use pressurized air and water and can fly at 100 mph. Unfortunately, used improperly or carelessly, they have been known to burst, strike spectators, or launch into the face of a participant. And yes, this has really happened. The rockets have also sometimes damaged property by landing hundreds of feet away. Adequate and knowledgeable adult supervision is critical to a safe, successful launch.

GENERAL INFORMATION

Leaders and participants should be aware of local and state laws related to the launching of rockets, including water bottle rockets. Here are a few essential tips to have a safe and fun event:

  • Rockets should be remotely launched from a stable launch device and not hand held. The launch device should be pointed within 30 degrees of vertical to ensure that the rocket flies nearly straight up.
  • If more than 30 degrees of tilt is needed, either remove the rocket from service or the wind is likely too strong.
  • Operators should stay at least 15 feet from the launcher and spectators at least 50 feet. High-pressure air can cause a water bottle rocket to rupture and explode, causing severe injury.
  • The plastic bottles commonly used for soft drinks or water are generally used to construct the body of the rocket. Flying components—such as fins, a nose cone, or decorations—need to be lightweight and non-metallic (such as Styrofoam, tape, etc.).
  • “Payload” items such as GoPro cameras and flight computers are not recommended due to their added weight.
  • Air pressures should be appropriate: Most websites recommend a maximum range between 50 and 90 pounds per square inch (psi). Do not use any other gases, such as propane, Co2, or nitrogen—only atmospheric air.
  • The use of friction-type launchers where the rocket is not held by a latch reduces the chance of overpressure.
  • Use a working and accurate pressure gauge, visible at a distance from the launch site, to verify the pressure being used.
  • Compressed air tanks may speed up a launch, but we recommend a manual tire pump set up away from the launch site. High pressure tanks or pumps are not recommended.
  • If a rocket does not launch successfully, DO NOT allow anyone to approach the rocket until it has been depressurized through a remote “bleed down” of pressure.

Bray Barnes

Director, Global Security Innovative
Strategies

Bray Barnes is a recipient of the Distinguished Eagle Scout Award, Silver
Beaver, Silver Antelope, Silver Buffalo, and Learning for Life Distinguished
Service Award. He received the Messengers of Peace Hero award from
the royal family of the Kingdom of Saudi Arabia, and he’s a life member of
the 101st Airborne Association and Vietnam Veterans Association. Barnes
serves as a senior fellow for the Global Federation of Competitiveness
Councils, a nonpartisan network of corporate CEOs, university presidents, and
national laboratory directors. He has also served as a senior executive for the
U.S. Department of Homeland Security, leading the first-responder program
and has two U.S. presidential appointments

David Alexander

Managing Member Calje

David Alexander is a Baden-Powell Fellow, Summit Bechtel Reserve philanthropist, and recipient of the Silver Buffalo and Distinguished Eagle Scout Award. He is the founder of Caljet, one of the largest independent motor fuels terminals in the U.S. He has served the Arizona Petroleum Marketers Association, Teen Lifeline, and American Heart Association. A triathlete who has completed hundreds of races, Alexander has also mentored the women’s triathlon team at Arizona State University.

Glenn Adams

President, CEO & Managing Director
Stonetex Oil Corp.

Glenn Adams is a recipient of the Silver Beaver, Silver Antelope, Silver Buffalo, and Distinguished Eagle Scout Award. He is the former president of the National Eagle Scout Association and established the Glenn A. and Melinda W. Adams National Eagle Scout Service Project of the Year Award. He has more than 40 years of experience in the oil, gas, and energy fields, including serving as a president, owner, and CEO. Adams has also received multiple service awards from the Texas Alliance of Energy Producers.