Abstract :
The agricultural sector is one of the main supporting sectors of the Indonesian economy
today. However, there is one problem currently being faced by the agricultural sector in
Indonesia, namely productivity. Various innovations have also emerged to increase the
productivity of farmers, one way is to speed up pesticide spraying activities using UAVs or
drones. Previously in 2017, a prototype pest spraying system was made using liquid media on
an Unmanned Aerial Vehicle (UAV) platform with a quadcopter base where one of the main
components of the drone sprayer is the nozzle. The nozzle has a function as an exit on the piping
instrument. The way the nozzle works is that the flow that passes through this nozzle will change
its pressure. The flow that comes out of this nozzle will change shape and direction. For
example, the direction becomes spread with the form of a smaller (smooth) spark and high
pressure. It was from this background that the idea emerged to conduct more in-depth research
on the AMF-16 IF Drone, and this thesis discusses specifically the Nozzle of the AMF-16 IF
Drone. The purpose of this study was to determine the discharge of each variation of the nozzle
installation on the AMF-16 IF drone, the effectiveness of the spray area on the AMF-16 IF
drone based on static tests and flight tests, and the comparison of static tests with flight tests.
In this study, flight testing and static testing were carried out on a sprayer prototype in
the form of a nozzle. The flight test will test the distribution of liquid from the nozzle when the
drone flies, while the static test is a test of the distribution of liquid from the sprayer by hanging
the sprayer on the test pole, in both tests below it has been prepared test paper to measure the
spray area by the nozzle. In this test, there are variations of the nozzle using 2 nozzles and 4
nozzles, then also using variations in height during the test with a height of 40 cm and 80 cm.
From the results of the tests carried out by the author in the form of static tests and flight
tests, it can be concluded that the discharge at 2 nozzles (average 0.0129 L/second) is smaller
than the discharge from 4 nozzles (average 0.0068 L/second), The number of nozzles affects
the water flow in the spray. The experiment using 4 nozzles and a height variation of 80 cm
became the most effective experiment with the results of a spray area of 13875 cm2
in the static
test and 14400 cm2
in the flight test. The results of the largest spray area using 2 static test
nozzles are wider than the flight test with a difference of 1125 cm2
and the largest spray area
using 4 test nozzles is wider than the static test with a difference of 525 cm2.