Project S.A.R.M.E.D Everett Zofchak, Brendan Miller, Zack Yeger, Mike Lamond

Table of Contents  Project Background  Project Management and Organization  Design Procedure and Methodology  Design Analysis  Technical Analysis of System and Subsystems  Prototype of Final Design

Project Background – Recognizing the Opportunity  We recognize the opportunity to profit off of the ability to market and promote drinks at events by launching them to fans.  The problem we encountered was slowing down the projectile to a speed that would be safe.

People believe this device is best for marketing drinks What Could you see this being used for?# Entertainment8 Marketing17 Sales12 Customer Needs:  Ability keep beverage intact  Deliver object slowly  Sustainable  Compact  Self-contained  Aesthetically pleasing

Design Specifications  Be able to withstand a 10 foot freefall  Deliver drink to fans at 2.5 m/s or less  Prototype costs less that $10 to build  Holds a drink sample of 100 ml (3.4 fluid ounces)  Projectile must have a diameter of 3 inches or less

Project Management

Systems Diagram

Concept 1  Umbrella design  Closed on flight up  Open on flight down

Concept 2  Umbrella/Rocket combo

Concept 3  Falls bottom first  Nose cone becomes parachute

Concept 4  Helicopter design  Inspired by maple seed

Concept 5  Bottle Rocket design  Bottom weighted  Octagonal parachute opens on descent

Design 5 was the best design choice  Pairwise comparison chart

Determining the Drag Coefficient  Dropped from 5’ 11” (1.8 m)  Multiple trials with multiple layers of trash bags  Use drag coefficient to determine parachute area

Calculations To determine area of parachute. To determine side length of octagonal parachute. Free body diagram at terminal velocity.

Bill of Materials QuantityDescripti on Part #Cost 1Smart Water 700 ml N/A$1.50 2Gelatin Shot Container H9P2T8$.20 1Wegmans Tall Kitchen Bag $.20 Total Cost$1.90 QuantityDescripti on Part #Cost 100 (grams) $.03/g ABS Plastic N/A$3.00 Plastic Sheet $.30 Total Cost $3.30

Dimensions and Drawings

Conclusion  Problem: speed  Best Design  Cost of prototype  Cost of finished product  Failures we encountered

References  terminal velocity (2013). (1st ed.) Oxford University Press  PARACHUTES: REMARKABLE NEW DESIGN. (1928, ). The Times of India (1861- Current

Any Questions?