Abstract :
As a volcano that includes having a fairly high activity, Mount Merapi
attracted more government attention in the supervision and monitoring. This is due
to the potential eruption of the mountain is still very large. Given the population
living in the vicinity even up to Mount Merapi, this natural disaster needs to be
given serious attention. One of the important information needed in monitoring is
the visual information of the crater state of Mount Merapi, and one method to
retrieve that information is by sending unmanned aircraft. Therefore this scientific
paper discusses the design of unmanned aircraft that have a special mission for
monitoring Mount Merapi.
The writing of this scientific paper is devoted to the design of unmanned
flying wing aircraft with the name S774-M. Will be launched from Yogyakarta city,
this aircraft has a specific flying performance to perform the flying mission. In
estimating the state and flying performance of the design plane, the 3-dimensional
model has been tested for its aerodynamic characteristics using ANSYS 15.0
software, its stability with XFLR5 V6.09 software, and its range and endurance with
Electric UAV Flight Time Calculator.
The result of the design is found that the Flying Wing S774-M UAV
aircraft has a 2 m of wing span and 2.529kg of weights and need to trimed at 1?
angle of attack. Fly in altitude of 3000 meter above the seal with cruising speed of
70 km / h. It has a lift coefficient value of 0.2196 and a drag coefficient of 0.0145,
also has a negative Cm? curve which indicates that the aircraft is statically stable.