Research Article
Preliminary Design of a Small Unmanned Battery Powered Tailsitter
Table 1
Parameters that are constant or assumed to be constant.
| | Parameter | Value | Unit | Description |
| | 0.1 | — | Avionics weight ratio | | 0.2 | — | Fuselage and strength structure weight ratio | | 20 | N/m2 | Wing weight coefficient | | AR | 5.0 | — | Wing aspect ratio | | 0.03 | — | Wing zero-lift drag coefficient | | 150 | Wh/kg | Battery specific energy | | 5 × 10−4 | kg/W | Mass-power coefficient of motor-propeller system | | 0.95 | — | Efficiency of battery discharge | | 0.95 | — | Efficiency of ESC | | 0.9 | — | Efficiency of BLDC motor | | 1.3 | | Peukert coefficient for Li-Po battery | | 1000 | m | Mission height | | 1.0 | kg | Mass of mission payloads |
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