Table 2.
Comparison between the reliability of a commercial and a military drone.
| Commercial Drone (a) | |||
| System Description | λP System FIT (F/106 hrs) | MTBF (hours) | Incidence (%) |
| Ground Control System | 2.00 | 500,000.0 | 6.62% |
| Mainframe | 2.77 | 360,984.8 | 9.16% |
| Power plant | 9.94 | 100,603.6 | 32.88% |
| Navigation system | 9.41 | 106,269.9 | 31.13% |
| Electronic system | 5.01 | 199,600.8 | 16.57% |
| Payload | 1.10 | 909,090.9 | 3.64% |
| λ TOTAL = | 30.23 | FIT | |
| MTBF (RTotal) = | 33,079.50 | Hours | |
| 1378.31 | Days | ||
| 49.23 | Months | ||
| Military Drone (b) | |||
| System Description | λP System FIT (F/106 hrs) | MTBF (hours) | Incidence (%) |
| Ground Control System | 14.00 | 71,403.6 | 27.30% |
| Mainframe | 2.77 | 360,984.8 | 5.40% |
| Power plant | 21.08 | 47,428.7 | 41.10% |
| Navigation system | 7.39 | 135,369.3 | 14.40% |
| Electronic system | 3.44 | 290,942.9 | 6.70% |
| Payload | 2.62 | 382,219.2 | 5.10% |
| λ TOTAL = | 51.30 | FIT | |
| MTBF (RTotal) = | 19,493.18 | Hours | |
| 812.22 | Days | ||
| 29.01 | Months | ||