Abstract :
Unmanned Aerial Vehicle (UAV) is an unmanned vehicle aircraft that can
carry out various missions including military and civilian (general) missions. In
its military mission, UAV aircraft are operated to spy on enemy areas and enemy
conditions, and in civilian missions, UAVs are used for agriculture, plantations
and search for disaster victims. As for the purpose of this study to determine the
flow of weight and balance, center of gravity calculation and comparison between
center of gravity results from CATIA software with center of gravity UAV V?SKY14 with direct calculatioan.
The UAV V-SKY14 is a type of aircracft that used a fixed wing, weight and
balance of the aircraft can be determined by determining the center of gravity
(CG). Center of gravity (CG) must be maintained so that the aircraft can balance
both the lateral and longitudinal axes. In calculating the center of gravity (CG),
the V-SKY14 UAV plane is determined by the weight, arm, and moment of each
component of the aircraft, and to get the data can be done by observation,
literature studies, and interviews.
After doing the calculation of weight and balance, the center of gravity will
be calculated on four conditioned, by CATIA Plane Assemble, by CATIA Plane
Part (without servo), direct calculation (without servo), and direct calculation
(with servo). The center of gravity from CATIA (without servo) at X coordinate is
467,5666997 mm, at Y coordinate is 0,019394256 mm, at Z coordinate is
103,6086945 mm. The center of gravity at direct calculation (without servo) at X
coordinate is 456,4177546 mm, at Y coordinate is 0 mm, at Z coordinate is
103,7206266 mm. The center of gravity from direct calculation (with servo) at X
coordinate is 504,7053364 mm, at Y coordinate is -1,113689095 mm, at Z
coordinate is 101,624594 mm. Also the error percentage from CATIA by part
calculation and direct calculation on UAV without servo is 0,0238% at X
coordinate, 1% at Y, coordinate 0,0010% at Z coordinate.