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Presentation OnHovercraft

Presented By:

Udit Ahuja

Raayush Dhar

Tejveer Singh

Sachin Dwivedi

Guided

By:DrSubrata Das

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Objectives

Build a working, autonomous hovercraft

Complete the course, even if it takes allthe allotted time.

Maximize maneuverability of thehovercraft

Make the lightest and most cost efficienthovercraft possible

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Basic components of hovercraft

1. Propellers2. Air3. Fan4. Flexible skirt

http://en.wikipedia.org/wiki/File:Hovercraft_-_scheme.svg

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Equipment List

2 sheets of core board

5 motors

1 switch

1 battery connecter

1 rudder kit

1 big motor

2 batteries

Radio controller and receiver

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Skirt and Body

Assignments:

Design and build a durable and lightweightbody and skirt

Find the best placement of parts

Use cost efficient materials

Create a leak free seal to the body of

hovercraft

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Design Process

Decided to first build a prototype to test ideas onso that we dont have to worry about perfect

dimensions and appearance.

Final version is the one where we carefully

measured everything and used colorcoordinated materials.

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Lift and Propulsion

Assignments:

Choose the adequate placement of fans

Find powerful yet efficient fans to propel thehovercraft

Find reversible fans

Determine the best methods to power the

fans

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Structural Base

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Skirt Design

We considered an open, full, and tubulardesign.

The tubular design was too complicated.

The open design didnt hold enough air in.

We finally decided on a full skirt with holesto let some of the air out because it issimple and reliable.

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Method of Sealing the Skirt

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Number of Fans

Originally, we considered having 2 fans.

1 down for lift and 1 backwards for thrust.

Then, we thought

about using each fan

for both thrust and lift

by dividing the air

stream.

We finally decided to

use a larger motor for

thrust and a fan for lift.

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Our Wish List

RCX Lexan (for the base material) Rubber (car inner tube or thin material for skirt)

Battery Holder (for 8 double AAs) 2 axial fans 1 lift fan Relays

Zener Diodes (6) LEDs Wire

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Thank

you