Table 2. Comparison of ideal calculated performances of multicopter against spherical drone.
This paper has considered a very basic preliminary version of the
required drone. A more accurate aerodynamic denition both in terms
of propulsion (improving it by mean of Coanda eect) or in terms of
a better denition of the surfaces could generate future signicant
improvements, which are expected to be in line or improve the
theoretical model of the multicopter.
This paper, after a large bibliography and patenting reference
analysis, produces a preliminary energy assessment of an initial even
if not optimized architecture of a possible spherical UAS that can be
used for dierent possible future uses in the area of safety, security,
vigilance and monitoring.
This vehicle concept presents a major benet with respect to any
traditional multicopter because of an eective inoensive design that
can allow operating also over the people. Further uses can deal with
an eective use in hostile environments such as in the presence of
atmospheric chemical pollution.
The energy assessment made against a market leader commercial UAS
with the same expected weight demonstrates the system feasibility of
the proposed drone demonstrating that their energy consumptions are
fundamentally similar on the same reference mission.
These preliminary results can be easily extended also to future more
evolved vehicle concepts, which can be derived from further
improvements of the performances. Future and more evolved
versions are expected to improve their performances by a better
positioning of the propeller and a better shaping of the vehicle.
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