Estimate how many inspection drones are needed to complete a mission within a deadline. The model uses inspection workload, productive rate, usable flight time, turnaround time, weather availability, and a reserve allowance to convert an ideal flight plan into a practical fleet requirement.
Sorties per drone = floor(available mission minutes ÷ (flight + turnaround)). Capacity = sorties × flight hours × inspection rate. Fleet adds the reserve allowance and rounds up.
The main result is a planning estimate based on the entered operating assumptions. Supporting metrics show the intermediate capacity, cost, energy, or utilization effects that drive it.
This tool is an operational estimate, not a manufacturer guarantee. Confirm safety limits, local rules, equipment specifications, and site conditions before deployment.
For 480 assets at 18 assets/hour, 32-minute flights, 18-minute turnarounds, a 10-hour window, 80% availability, and 10% reserve, each drone completes nine sorties and about 86 assets; seven drones are planned.
It uses only the values entered above and the formula shown on this page. The estimate does not automatically account for site-specific constraints that are not entered.
Use measured logs from comparable shifts or missions when possible. If records are unavailable, test conservative and optimistic scenarios instead of relying on a single guess.
Weather, downtime, route geometry, operator procedures, equipment condition, payload, and unplanned interruptions can change actual performance.
Yes where the field allows zero. Required time, capacity, rate, or workload inputs must remain greater than zero so the calculation stays meaningful.
Keep the displayed estimate for comparison, but round fleet requirements up to whole machines and add operational contingency where missed deadlines carry a cost.
| Variable | Meaning |
|---|---|
| Productive rate | Assets inspected per airborne hour |
| Turnaround | Landing, battery, data, and relaunch time |
| Availability | Weather and airspace adjustment to the mission window |