Objective:

Build a catapult out of any material that will launch a tennis ball through a hoop placed parallel with the floor. The hoop will have an inside diameter of 254 mm and its centerline will be .6 m off the floor (measured at .5π radians from floor). The centerline of the basket will be measured 5.5m from the front-most part of the catapult with the lever arm in firing position. The backboard will be 150mm by 150mm (HxL). UK SAE will provide all the projectiles.

Rules:

• • Catapult must have a firing arm (no slingshots allowed)
• • Catapult must have a trigger mechanism to release the arm from a loaded position
• • Catapult must fit in a 45.7cm x 45.7cm x 45.7cm box
• • Catapult must be adjustable to fire between 4.5m and 6.4m in case of a tie.
• • Maximum of three attempts in competition round
• • No practice rounds.

Judging:

The judging will begin at 10:00am and final results will be determined after the competition is over. Competition will start at 11:00 am . No new entries will be accepted after 11:30 am . The judges¹ decisions are subjective and final.

• • 5 points are awarded for each basket
• • 3 points are awarded if it hits the rim
• • 1 point if it hits the backboard
• • NO combination hits will be allowed, only the highest hit will be scored, i.e. backboard to rim to basket will be worth 5 points, not 8
• • 3 additional points are available on the neatness and workmanship of your machine, and are awarded on a scale to be determined by the judges
• • 18 points is the maximum score
• • In the event of a tie for first place, sudden death overtime will be in place. The backboard will be moved forward OR backward from the firing line up to three feet is determined by a coin toss. Each team will get three more attempts and the team with the most points at the end of overtime wins. In the event of a double overtime, the rules for overtime apply.

Prizes:
Grand Prize: $25 gift certificate to BestBuy
Second Place : $10 gift certificate to BestBuy

Contact Information
Carl Staubach (859) 620-6006 ccstau0@engr.uky.edu

Sponsored by the student section of the Society of Engineers