| Multirotor Reconnaissance Drone | Close-range inspection of buildings, industrial sites, forests, bridges, and incident perimeters. | Approximately 20–45 minutes per battery, depending on wind, payload, and temperature. | Approximately 1–10 kg, depending on aircraft size. | Commonly below 120 m above ground level where local aviation rules apply. | Thermal camera, visible-light zoom camera, spotlight, loudspeaker, mapping camera, and laser rangefinder. | Locates hotspots, identifies trapped or isolated people, checks roof and façade conditions, and provides live situational awareness to incident commanders. | Limited endurance and sensitivity to strong wind, heat, smoke, and turbulence; generally unsuitable for carrying large volumes of extinguishing agent. |
| Tethered Multirotor Drone | Persistent aerial observation over a fixed emergency zone. | Several hours and, in some systems, continuous operation while supplied through a ground tether. | Often approximately 2–15 kg, including cameras, lighting, communications, and other mission equipment. | Usually tens of metres to around 150 m, subject to tether length and national regulations. | Thermal imaging, high-zoom camera, floodlight, communications relay, air-quality sensors, and loudspeaker. | Maintains a stable night-and-day view of wildfire fronts, evacuation routes, large structures, and emergency staging areas. | Restricted movement, dependence on a ground vehicle or power unit, and vulnerability to obstacles, severe weather, and tether management problems. |
| Heavy-Lift Multirotor | Transport of firefighting equipment or delivery of a limited amount of water or suppressant. | Approximately 15–40 minutes with a substantial payload; less when carrying liquid or operating in strong wind. | Approximately 10–40 kg for many operational configurations. | Typically operated at low to moderate altitude near the incident area. | Thermal camera, water or suppressant tank, drop mechanism, winch, cargo hook, and obstacle-detection sensors. | Can deliver small suppressant loads to inaccessible hot spots, move medical or rescue supplies, and support operations where ground access is dangerous. | Liquid payload is limited compared with helicopters and fire engines; battery endurance, heat, wind, and take-off weight strongly affect performance. |
| Water- or Suppressant-Carrying Drone | Targeted application of water, foam, or other approved extinguishing agents. | Often approximately 10–30 minutes when carrying a liquid payload, depending on tank size and weather. | Commonly about 10–30 litres for specialized aerial delivery platforms; actual capacity varies by aircraft design. | Normally used at low altitude to improve placement accuracy and reduce drift. | Thermal camera, precision release system, flow controller, and navigation sensors. | Supports spot suppression, protects selected assets, cools limited hot spots, and reaches narrow or hazardous locations. | It cannot replace sustained hose lines, engines, or aerial tankers for large structural or wildland fires; water availability and refill logistics are critical. |
| Fixed-Wing Mapping Drone | Wide-area mapping and monitoring of wildfire boundaries, flood zones, and damaged infrastructure. | Approximately 60–180 minutes for many electric systems, depending on aircraft size and payload. | Approximately 0.5–5 kg for common survey configurations. | Usually operated at higher survey altitudes than close-range multirotors, subject to airspace restrictions. | RGB mapping camera, multispectral sensor, thermal sensor, and georeferencing equipment. | Produces orthomosaics, elevation models, perimeter maps, damage assessments, and repeat-survey data for planning and recovery. | Cannot normally hover or take off vertically without additional design features; requires suitable launch and landing space and is less effective for close inspection. |
| Hybrid VTOL Mapping Drone | Long-range reconnaissance combined with vertical take-off and landing. | Approximately 45–120 minutes, depending on flight mode, payload, and battery configuration. | Approximately 1–5 kg for many commercial survey configurations. | Variable; normally operated within approved altitude limits for unmanned aircraft. | Thermal camera, zoom camera, mapping camera, multispectral sensor, and onboard positioning system. | Surveys large or remote areas without a runway, tracks fire movement, identifies access routes, and supplies updated imagery to emergency teams. | More complex than a standard multirotor, with higher training and maintenance requirements; payload and hovering time are limited. |
| Indoor Inspection Drone | Inspection of smoke-filled, dark, damaged, or confined indoor environments. | Approximately 8–25 minutes per battery, depending on protective equipment and indoor conditions. | Usually below 1 kg, prioritizing compact size and protective cages. | Indoor operation; altitude is limited by the building structure and mission environment. | Thermal camera, low-light camera, protective cage, obstacle sensors, and compact lighting. | Checks upper floors, warehouses, tunnels, and industrial spaces before personnel enter, helping identify heat sources and structural hazards. | Short endurance, limited range, possible signal loss indoors, and reduced performance in dense smoke, extreme heat, water spray, or confined spaces. |
| Communications-Relay Drone | Extending radio, cellular, or data connectivity during infrastructure failure. | Approximately 20–60 minutes for battery-powered systems; tethered configurations can remain airborne much longer. | Usually approximately 1–10 kg, depending on the communications payload. | Selected to provide line-of-sight coverage while complying with local aviation requirements. | Radio relay, cellular relay, satellite terminal, mesh-network equipment, and emergency lighting. | Improves coordination between firefighters, search teams, command posts, and medical responders when towers or terrestrial networks are unavailable. | Coverage depends on terrain, antenna placement, spectrum authorization, weather, and the availability of a safe launch location. |
| Thermal Imaging Fire-Detection Drone | Early detection and verification of heat signatures across forests, industrial sites, utilities, and large facilities. | Approximately 25–90 minutes, depending on aircraft type and sensor payload. | Typically approximately 0.5–5 kg. | Varies according to the size of the search area, sensor resolution, and applicable airspace rules. | Radiometric thermal camera, visible-light camera, GPS, geofencing, and automated hotspot-analysis software. | Detects abnormal heat, confirms whether apparent smoke contains an active fire, and supports faster dispatch and perimeter monitoring. | Thermal readings can be affected by smoke, reflective surfaces, weather, vegetation, sensor angle, and the need for trained interpretation. |