See Junk Yard Challenge Trial Event (Division B and C) GENERAL RULES

By Bernard Perez,2014-06-17 23:03
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See Junk Yard Challenge Trial Event (Division B and C) GENERAL RULES

See: Junk Yard Challenge Trial Event (Division B and C) GENERAL RULES

    TEAM Size: 2

    Junk Box -- Box can be a standard 10 ream paper boxwith lid (26cm X 31cm X 46cm


    Suggested Supplies & QuantitiesTo Put In Your Box:

    dowel rod (2’ cut), pencils (4), straws (20), wooden craft sticks (20), pipe cleaners (20), index cards (5), pieces of paper (5), plastic grocery bags (2), paper grocery bag (2),tissue paper (2),

    newspaper (2), masking tape, string or yarn, fishing line, thread, needle, brads,paper clips,

    whatever else fits into your box with the lid on. Pre-glued pieces are allowed

    Materials considered unsafe will not be allowed. When there is doubt, do not bring the material. Acids, bases, razor blades, flammable liquids are not permitted. No glue is permitted.

    Provided Supplies practice eggs (hard boiled), grade A large eggs (raw), rubber bands for egg

    safety belt , pieces of egg carton for egg sling (can not be modified), drop zone target, plumb

    line, ladder, scale

    Remember Your Tool Box: no extra building materials, no glue, include at least one big needle. Bring Safety Spectacles with Side Shields.

    Time Allowed for Building - 30 minutes including tests. Judging will take approx. 10-15

    minutes. 5 minutes for repair/adjustments allowed. No major remodeling will be allowed.

    Chimacum Invitational Junkyard Challenge

    Parachute Target Drop *

    Create a parachute that will allow an egg to land safely on a target

Competition Rules:

     Your team will bring a junk box filled with materials that could be used to create a

    parachute. Teams may use part or all of the materials in the junk box and are not allowed to

    share materials with other teams. All extra materials should be saved in case repairs are needed

    during competiton.

     Teams will be allowed 30 minutes time to build and test their parachute. Practice eggs

    will be provided for testing purposes. Competitors are allowed to bring diagrams to help them

    build their parachute. After the time is up, all parachutes will be impounded and no changes will

    be allowed except for repairs and adjustments between trial 1 and trial 2.

    Device Requirements:

     Your parachute may not be aided by a helping hand or other energy source. Teams will

    be provided with an egg seat (a piece of an egg carton) and seat belts ( 2 rubber bands). You will

    need to attach the parachute device to the egg seat. Other modifications to the egg seat are not

    allowed such as extra padding, materials that cover the egg and seat, or the addition of extra

    materials for the purpose of protecting the egg.

    Testing Procedure:

     Each team will be allowed 5 minutes to load the egg into the egg seat and prepare the

    parachute. Each team will choose and egg for each trial and load the egg into its seat before

    proceeding to the drop zone. Each team will be allowed two trials with 5 minutes allowed

    between trials for repairs and adjustments using materials left over from construction.

     One team member will drop the parachute from a ladder at the height determined by the

    challenge proctor. The entire device (egg and parachute) must begin above the drop line. A

    plumb line will be available to help you line up your device, but must be removed before the

    actual drop.

     The goal of the contest is to have the egg land and remain on the center of the target

    without the egg breaking. If the egg does not leave a wet mark on a paper towel, it is considered

    unbroken! If the egg remains uncracked,, the team will receive a 10 point bonus.

     The score will be determined by measuring the distance between the furthest edge (or

    part) of the device and the denter of the target. The best result (smallest distance) out of the two

    trials will be considered for final results. The lightest parachute (without the egg) will win in the

    case of a tie.

    Sample Score Sheet

     Parachute Target Drop


     Member Names:



     mass of parachute=________

     Distance: trial 1___________ trial 2 ________________

    *modified from S. Baker & T. Trimpe 2001

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