# Hovercraft: Inch and Volume Flow Rate

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• Topic: Inch, Force, Hovercraft
• Pages : 2 (469 words )
• Published : January 4, 2011

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I.Purpose
Through this project, our goal was to demonstrate an understanding for the concepts of pressure, Newton’s Laws, Bernoulli’s Principle, volume flow rate, efficiency, power, potential and kinetic energy, and work. It provided a summation for most of the topics covered in this course.

II.Materials
Craftsman Leaf Blower (220 mph, 120 V, 12A,8 lbs.)
¾’’ Plywood (75 lbs.)
Milk Crate (3 lbs)
Spray Paint (12 oz.)
Blue Tarp
Staple Gun
HVAC Duct Vent Piping ( 2.5 ft.)
Duct Tape
Coffee Can Lid
3/8’’ Carriage Bolt
Jigsaw
Utility Knife
III.Procedure
1.First, we gathered the supplies.
2.Then, we cut out the plywood hovercraft body with a jigsaw, and drilled out a hole in the center for the bolt. 3.Next, we sanded down the body to prevent the tarp from tearing. 4.Then, we aligned the tarp then mounted it using staples and duct tape. 5.The carriage bolt was put in place to secure the coffee can disk to the underside. 6.After that was secured, the vent holes were cut out on the underside. 7.The leaf blower was then attached and fitted to the HVAC pipe leading into the tarp. 8.A milk crate was added to prevent the leaf blower from shifting out of position. 9.The hovercraft was painted Whaler red and white.

10.The hovercraft was then tested, and it resulted in a success.

IV.Calculations
Operator’s Weight = 150 lbs.
Average Distance of Hover = 68.46 ft.
Inflation Time = 2 seconds
Hover Time = 11 seconds
Acceleration of Inflation Time:
Force of Weight:
Operator’s Velocity:
Power of Vehicle:
P=v*I

V. Analysis
There were very few issues that arose during this project. One of the issues dealt with the amount of air flowing out of the hovercraft. We were forced to seal and redesign the underside of our craft to create an air cushion that was better suited for flight. The only other issue that was brought forth, was that the operator had to adjust his riding position to focus the...