Research Article
Conceptual Design of a Small Hybrid Unmanned Aircraft System
Table 2
Comparison among different VTOL concepts and design issues (see text for explanation).
| | Design driver | A | B | C | D | E | F | G | H |
| | Mechanics simplicity | 1 | 1 | 1 | 1 | 3 | 4 | 3 | 4 | | Aerodynamics complexity | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 4 | | Low-speed flight | 2 | 4 | 3 | 2 | 3 | 4 | 4 | 4 | | Stationary flight | 1 | 4 | 4 | 2 | 4 | 3 | 4 | 4 | | Control cost | 2 | 1 | 2 | 1 | 1 | 3 | 4 | 3 | | Payload/volume | 2 | 2 | 3 | 1 | 2 | 1 | 4 | 3 | | Maneuverability | 3 | 4 | 3 | 3 | 2 | 1 | 2 | 3 | | High-speed flight | 3 | 2 | 2 | 3 | 4 | 1 | 1 | 3 | | Miniaturization | 2 | 2 | 2 | 4 | 3 | 1 | 4 | 3 | | Power cost | 3 | 2 | 2 | 3 | 2 | 4 | 2 | 1 | | Survivability/Endurance | 2 | 1 | 1 | 3 | 3 | 3 | 3 | 1 | | Total quality index | 22 | 24 | 24 | 24 | 28 | 28 | 32 | 33 |
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