Water Rocketry
AS/AE | December 21 - 10:00AM
Teams must design and safely launch at least two water rockets with launch pads, ensuring stable flight through proper fin placement to keep the Centre of Drag behind the Centre of Mass. Designs will be inspected for safety compliance. Stability can be tested by swinging the empty rocket to confirm nose-first orientation. Each team will have one round, with designated roles for rocket handlers, pump handler, and captain.
Event Rules
1. The maximum length of the rocket should not exceed 75 cm. 2. While a sharper nose improves aerodynamics and accuracy, for safety the nose must be somewhat rounded and made of a soft, flexible material. The nose must not form a sharp, hard point. 3. The water-fuel tank must be a plastic soda bottle, not a water bottle, with a maximum size of 2 liters. A soda bottle makes an ideal fuel tank for a water rocket; the bottle should be strong, lightweight, and designed to be pressurized. 4. The rocket fuel must be water, driven by pressurized air to produce thrust. Water and air are non-toxic and non-combustible, and readily available. Air pressure must not exceed 70 psi, roughly 1/2 of the burst pressure of soda bottles. 5. The launch pad must be of sufficiently sturdy construction to ensure a repeatable, predictable launch direction. The pad may optionally include a blast shield that disperses the rocket exhaust, a high- velocity column of water, into a harmless spray, to protect participants and spectators and to prevent mud splatter from the dirt surface of the infield. 6. Use of a launch guide pole is required to help launch the rocket in the intended direction. The launch pad may NOT be secured to the ground with spikes driven into the ground. This restriction is made to protect the field's underground sprinkler irrigation system. However, small diameter rods (wooden dowels or metal rods) which serve as guide poles may be pressed into the ground by hand, up to several inches deep. 7. No ready-made kits will be allowed to use. 8. Component assembly should be done during the provided time only. 9. Participants can compete individually or in a team of 2.
Judging Criteria
The Participants are judged based on: 1.Stability of the rocket in flight (COD behind COM/COG). 2.Adherence to safety specifications, such as rounded nose design and non-metal components. 3.Scoring based on compliance with launch setup and flight performance. 4.Penalty for landing outside the marked area.
Event Coordinators
Dibyalakshmi Borthakur: 7619178884 | Kranti Kamathe : 73536 68280 | Sambhradha : 8867054035