Abstract :
Surveillance UAV (Unmanned Aerial Vehicle) is generally used to monitor
area for various purposes. Weight and balance are used to determine the location
of CG and the stability. This research determines wing loading, power weight ratio
as well as to determine the wing area and motor power needed to analytically
support the UAV using a brushless motor, configure the flying wing with relative
speed of air from 12 m/s to 24 m/s.
Weight and balance calculation in this research was to find the mass value
and center mass of the UAV airframe by entering the properties of several materials
in the form of density on the airframe components using CATIA software. The
material is EPP Foam reinforced with carbon tube. The results of airframe mass
analysis using CATIA was combined with other UAV components to obtain the total
mass and center of mass of the UAV. The results were the total mass of 2144 grams,
the wing area of 0,608 m2 with a span of 1,6 meters, the power requirement of 231,9
Watts, and the overall CG location of the vehicle was located at the X coordinate
of 75,66 mm from the datum, at the Y coordinate of 1,15 mm from the datum and at
the Z coordinate of 3,89 mm from the datum. The location of CG was 117,34 mm
or 60% MAC in front of the neutral point and flight endurance 0,651 hours behind
the leading-edge chord root.