Basics of Aeromodelling

2. COROPLAST(SUNPACK)
• LIGHT AND DURABLE (FLEXIBLE UPTO
A EXTENT).
• GOOD CHOICE FOR BEGINNERS AND
IN CRASH PRONE AREAS.
BALSA WOOD
• LIGHT WEIGHT WOOD
• STRONGER THAN COROPLAST
BUT NOT CRASH PROOF
• IDEAL FOR SEASONED FLIERS

3. BASIC TERMINOLOGIES

4. FUSELAGE-EVERYTHING IS ATTACHED TO
FUSELAGE : WINGS , MOTOR ,
SERVOS ETC
WINGS-AIRFOIL SHAPE AND
PRODUCTION OF LIFT USING
BERNAULIES THEOREM
RUDDER-VERTICAL STABILISER
ELEVATOR-HORIZONTAL STABILISER

5. BRUSHLESS MOTORS
Provide large no of rotations
e.g. 1100 per volt
Longer life as compared to brushed
Propeller is attached to it.

7. TRANSMITTER AND
RECEIVER
Receiver is placed in fuselage , and servos
and esc is attached to it
Transmitter is hand held device
Mostly 4 channels are used for control
along axis.

8. THROTTLE-SPEED CONTROL
ELEVATOR-CONTROL OF
PITCH

9. RUDDER-CONTROL OF YAW
AILERONS-ROLLING MOTION

10. •
•
•

11. ESC
SERVO 1
SERVO 2
SERVO 3
PROPELLER
BATTERY
RECEIVER
MOTOR

12. CENTER OF GRAVITY
AERODYNAMIC CENTER(OF WING)-ALONG
WHICH LIFT IS PRODUCED
CENTER OF GRAVITY SHOULD ALWAYS LIE ON
AERODYNAMIC CENTRE

13. HELICOPTER

14. THE PLANE IN WHICH
PROPELLERS ROTATE
CAN ALSO BE CHANGED
THE PROPELLERS THEN CUT
AIR ALONG AN ANGLE WITH
VERTICAL
THIS RESULTS IN INCREASED
LIFT AS WELL AS MOTION
ALONG SIDEWAYS

17. USE OF ACCELEROMETERES
ACCELEROMETERES – DEVICES FOR MEASUREMENTS OF ANGLE
ALONG ANY AXIS.
AIRCRAFTS IN MID AIR ARE PRONE TO VARIOUS EXTERNAL FORCES.
ACCELEROMETERES MEASURE THE EFFECT OF THESE CHANGES ON
AIRCRAFT ,GIVE FEED TO MCU’S.
MCU’S THEN MOVE THE AIRCRAFT IN OPPOSITE DIRECTION TO
NEUTRALISE THE EFFECT.

18. These factors are not necessary ones but add to
the overall stability of aircraft
DIHEDRAL ANGLE
SWEEP WING
WINGS BENT AI THE
EDGES
WING LOADING
RATIOS

19. BOT THAT FLIES LIKE A BIRD
SYNCHRONISED MOTION OF
QUADCOPTERS
HELI + AIRPLANE(V22 OSPREY)
MANNED QUADCOPTER FLIGHT