FINALLY<AFTER A SERIES OF FAILED ATTEMPTS AND TOO MUCH PAIN,i did it....it took me two long months although....(i am a beginner after all..:-P)
I made it using:
1 arduino-uno development board
2 a brushed DC motor and IC-L293D
3 A brushless motor EMAX 2822
4 A plastic geared 9gm servo motor
5 A Lithium Polymer battery pack- 3cell,20-30c,2200 mAh
6 And an ESC for brushless motor
7 two propellers ,6x3 for lifting fan and other 8x4(not sure) for thrust(linear motion)
thank u VC sir,swapnil sir,vivek sir,and roopeshkrishna sir for ur valuable suggestions and advice.m really thankful to u all.
here are the links to project's final appearance,https://picasaweb.google.com/lh/photo/5vXEkwwSEX-Io-URl3hWNqlVV2ZSTrSaGncxjV7WC7c?feat=directlink
presentation and report that i had to make as per curriculum
http://www.scribd.com/doc/95579554/Amphibious-Surveillance-Hovercraft-Major-Project-Final-Year-Btech-EC-2011-12http://www.scribd.com/doc/95579232/Amphibious-Surveillance-Hovercraft-Major-Project-Final-Year-Btech-EC-2011-12....
PROGRAM CODE IS ALSO GIVEN THERE....SO,if any beginner requires,he/she may refer to it.:-)