Testing

Here is a picture of the models we used during testing.  We made these models to try and determine which design would produce more drag, allowing us to move easier through the water.  As you can see from the video below, you can tell the first model is the desire choice.

Model 1- Flap Design

Model 2- Ridge Design

Video of Testing the two models

Expanding Foam

http://hubpages.com/hub/Expanding-Foam-Insulation-Guide

An expanding foam could be used to make the "shoes" out of. The link shows a page explaining how expanding foam works and its uses.

WH Alternate Solution

Foam

Here is a link to a picture similar to the foam that we will be using for the project.
http://maxcdn.homeconstructionimprovement.com/wp-content/uploads/2009/06/extruded-polystyrene-insulation.jpg

CM Alternate Solution

Pictured above is an alternate solution. Note the flaps on the bottom and the foot placement cavity. 

WH Alternate Solutions

Alternate Solution 1

Alternate Solution 2

Alternate Solution 3

Background Info

Horseshoe Cove is part of a salt marsh located on Sandy Hook, NJ.  The cove is located at latitude – longitude coordinates of N 40.44316 and W – 73.99681.  At high tide the water is approximately 3-4 feet deep in the center of the water way that is fed from the northern marsh area.  In order to walk on water each group has to build an apparatus so it's possible to walk on the surface.  It is impossible for a human to walk on water because we cannot move our feet fast enough because we are too slow and break the surface tension of the water. If we could slap the water fast enough, without breaking the surface tension, we would be able to skim across the water.

Design Brief

As a team of five, design and produce a pair of shoes from recycled materials so that each person on the team is able to use them to walk on the water of Horse Shoe Cove north of the wooden bridge to get from the sandy bank to the barrier spit approximately 30 feet away.  Round two will consist a path a figure 8.  Original ideas are encouraged with the use of recycled materials.  Minor modifications to items such as body boards or surfboards are not acceptable.

Math and Science Data.

Weights             Displacement in Cubic feet  
Tom = 145                      2.3
Cheyne = 148                  2.4
Wally = 165                    2.6
Chris = 168                     2.7
Mike = 275                     4.4

Suggested size of shoe 6-1.5-1.5
amount of shoe out of water 1/3 out and 2/3 in to keep center gravity lower
minimum displacement per shoe 6.6 cubic feet

Testing Conducted Today

Today we conducted some preliminary testing on scale models of our shoe designs.  We were attempting to figure out which of the two designs had more drag, which would allow us to push ourselves easier through the water.  A video and pictures of the testing will be posted once i arrive home.

On a Side Note

I would just like to take the opportunity to say that I am happy with the progress that the Imperial Wizards have made and that we are on the way to succeed!

Testing Site

Pictured above is the testing site on Sandy Hook, NJ. 

Specs and Limits

Specifications

• Minimize the drag they would have in the water
• Maximize stability, buoyancy, and propulsion
• Minimize time on the water course
• Support the heaviest person on the team
• Be worn the entire trip across
• Keep the wearer upright at all times
• Be a pair, one for each foot
• Be reusable by each person on the team
• Be seaworthy and safe to operate, environmentally safe and not contaminate the water

Limitations

• (Materials)
• Be constructed of only recycled materials
• Latex paint, 3 tubes of caulk, and ½ gallon of contact cement, 1 tube of liquid nails
• (Time)
• Designing time, production time, testing time, redesign time
• (Capital)
• Supplies and equipment home or lab
• (Tools and Equipment)
• Utility knife, scissors, glue gun, internet
• (Information)
• Instructions, research, working drawings, specifications
• Not exceed 4 times the displacement of largest team member
• (People)
• Instructors, classmates, family
• (Energy)
• Electricity for glue gun, glue drying process, calories burned during project

The Members of our Group

Team Documentation Captain: Thomas D. Henry

Team Technical Writer: Walter Leo Horan IV

Team Head Designer: Michael J. Angus II

Team Logistics Coordinator: Cheyne M. Meseroll

Team Science & Math Analyst: Christopher A. Buglione