Water Rocket Competition

🏆Prize pool – 50k

A water rocket competition challenges participants to design and launch rockets powered by air pressure and water. These rockets typically use plastic bottles as their main body. Participants pump air into the bottle, creating pressure that propels the rocket when released. Competitions often focus on objectives like achieving maximum altitude, flight duration, or landing accuracy.

Reward and prizes🚀

1. INTRODUCTION

The Water Rocket Competition at Grafest 2025 is an inter-university competition designed to test the creativity, engineering skills, and problem-solving abilities of participants in designing and launching water-propelled rockets. This competition will encourage innovation and teamwork while promoting interest in aerospace and rocketry.

2. ELIGIBILITY CRITERIA

  • The competition is open to all university students across India.
  • Each team must consist of 2 to 4 members from the same university.
  • Participants must carry a valid university ID card and Aadhar card for verification.

3. ROCKET DESIGN SPECIFICATIONS

  • The rocket must be made primarily of a plastic bottle (PET bottle) with a capacity of up to 2 liters.
  • Only water and compressed air can be used as the propellant.
  • The maximum launch pressure is 60 psi. *
  • The rocket must have a parachute or recovery system to minimize impact damage.
  • Any metallic components are strictly prohibited for safety reasons.
  • The nozzle design should allow safe and effective launch using a standard launcher.
  • The parachute deployment system should be designed to function reliably at peak altitude.

4. COMPETITION FORMAT

The competition will consist of three rounds, each testing different aspects of rocket performance.

Round 1: Distance Challenge

  • Each team will get three attempts to launch their rocket
  • The horizontal distance from the launch point to the landing point will be measured.
  • The best of the three attempts will be considered for scoring.
  • The team with the farthest launch earns the highest score in this round. 

Round 2: Precision Landing

  • Rockets must land as close as possible to a designated target area.
  • The landing accuracy will be measured from the center of the target zone.
  • The closer the rocket lands to the target, the higher the score.
  • If a rocket lands outside the predefined target area, it will receive zero points for this round.

Round 3: Parachute Landing Challenge

  • The rocket must deploy a parachute system for a controlled descent.
  • The parachute should deploy at peak altitude to slow down the descent and minimize impact force.
  • The time taken for the rocket to descend after reaching peak altitude will be recorded.
  • The longer the parachute sustains a slow descent, the higher the score.
  • If the parachute fails to deploy, the team will receive zero points for this round.
  • The rocket must not break upon landing; damage due to impact will result in penalty points.

5. SCORING CRITERIA

  • Distance Challenge (40 points): Measured in meters; farther launches receive higher scores.
  • Precision Landing (40 points): Based on proximity to the target; closer landings receive higher scores.
  • Parachute Landing (30 points): Based on successful deployment and descent duration.
  • Innovation & Design (20 points): Judges will evaluate rocket stability, parachute deployment, and construction quality.
    • Penalty Points: Safety violations (-10 points per instance)
    • Use of prohibited materials (-20 points)
    •  Failure to deploy parachute (-30 points)
    • Rocket breaking on impact (-10 points)
    • Discipline factor (-10 points)

6. RULES & REGULATIONS

  • Teams must use only water and compressed air as propellants.
  • Any external propulsion system (e.g., chemical or solid fuels) is strictly prohibited.
  • All teams must bring their own launching pad for the competition.
  • Teams must ensure their rocket’s stability and safety before launch.
  • The parachute system must be designed to deploy without manual intervention after launch.
  • No external guidance system (e.g., remote control) is allowed.
  • Fair play and sportsmenship are expected from all teams.

7. SAFETY MEASURES

  • All launches will be conducted in a designated launch area under supervision.
  • Safety goggles must be worn by participants and event staff.
  • Participants must maintain a safe distance from the launchpad during launches.
  • If a rocket fails to launch after three attempts, the team will be disqualified from that round.
  • Any unsafe behavior, such as attempting to modify the launcher or using excessive pressure, will lead to immediate disqualification.

8. JUDGING PANEL

A panel of experts from aerospace and mechanical engineering backgrounds will judge the competition based on the scoring criteria. Their decision will be final and binding.

CONTACT INFORMATION:

Rudraksh Jha: 8103407242

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