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Do Sail Size and Wind Speed Affect Efficiency?

CSEF · 2016 Aerodynamics/ Hydrodynamics (Junior Division Only)

Joshua T. Manivone · Marshall (Thurgood) Middle School, San Diego, San Diego County

Overview

Objectives/Goals The objective of this project is to determine advantages of different sails in different scenarios. Methods/Materials Pool, Boat, 3 Triangular Sails, 3 Rectangular Sails, Large Circular Fan. Recorded the amount of time needed for the various sails to sail 3 and 6 meters. Results Triangular sails were faster in the 3 meter race with higher acceleration and maneuverability. Rectangular Sails were faster in the 6 meter race with a more constant speed as they moved further away from the fan. Repeated trials were conducted to determine the average speed of each sail. Conclusions/Discussion Repeated trials determined the advantages of various sized and shaped sails. These advantages can be translated to using different sails in different scenarios to make sailing more enjoyable.

Summary statement

I conducted many trials with self-constructed sails and a boat which determined each sails advantages.

Help received

I received help in constructing the boat and sails and running the trials from my dad.

Competition history

  • CSEF 2016 Aerodynamics/ Hydrodynamics (Junior Division Only) · Entry J0117

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