VIA Technologies EPIA SN-Series Specifications download pdf (Page 120)

Results of the test campaigns

108

Figure 87 shows the HIL simulated trajectory in green, while the red dots represent

the planned waypoints. The HIL simulation was done without simulating atmospheric

conditions, thus in ideal conditions. Notwithstanding a small time lag between the given

command and the aircraft response resulted in a non-optimal flight. The absolute mean

distance between the planned and simulated trajectory for the whole flight, shown in

Figure 88, is 13.93 m just below the tunnel boundary set at 15 m.

7.2 Flight tests

Three flight campaigns were conducted since the assembly of the FASTER

Engineering Model. An Ultra Light Aircraft, Tecnam P92-Echo, was used as aerial

platform; it is an high wing airplane equipped with a Rotax U912UL engine with a

maximum power of 60 kW [Ref.(46)]. It weights 600 kg and reaches a cruise speed of

about 180 km/h (51 m/s); the service ceiling is 4500 m (14700 ft).

The airborne internal management and computing unit is placed behind the two seats

and the external POD is attached to the fuselage structure in the passenger side (right side

looking at the propeller). For safety reasons, in addition to the c-shaped bracket (Figure

90) which fixes the pod to the structure, a flat string which passes under the fuselage and

is attached to structure in pilot side, is used to retain the POD adherent to fuselage.

Figure 90: C-shaped bracket used to install the external POD on the passenger side of the P92

fuselage

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 143 144

No comments

VIA Technologies EPIA SN-Series Specifications Page 120