Presentation On
Hovercraft
Presented By:
Udit Ahuja
Raayush Dhar
Tejveer Singh
Sachin Dwivedi
Guided
By:Dr
Subrata Das
Objectives
Build a working, autonomous hovercraft
Complete the course, even if it takes all
the allotted time.
Maximize maneuverability of the
hovercraft
Make the lightest and most cost efficient
hovercraft possible
Basic components of hovercraft
1. Propellers
2. Air
3. Fan
4. Flexible skirt
http://en.wikipedia.org/wiki/File:Hovercraft_-_scheme.svg
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
Skirt and Body
Assignments:
Design and build a durable and lightweight
body and skirt
Find the best placement of parts
Use cost efficient materials
Create a leak free seal to the body of
hovercraft
Design Process
Decided to first build a prototype to test ideas on
so that we dont have to worry about perfect
dimensions and appearance.
Final version is the one where we carefully
measured everything and used color
coordinated materials.
Lift and Propulsion
Assignments:
Choose the adequate placement of fans
Find powerful yet efficient fans to propel the
hovercraft
Find reversible fans
Determine the best methods to power the
fans
Structural Base
Skirt Design
We considered an open, full, and tubular design.
The tubular design was too complicated.
The open design didnt hold enough air in.
We finally decided on a full skirt with holes to let some of the air out because it is simple and reliable.
Method of Sealing the Skirt
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.
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
Thank you
