Multirotor
Quadcopters, hexacopters and octocopters lift with several rotors. They take off vertically, hover precisely and are easy to fly, but use more energy, so flight times are shorter. Most camera, inspection and spray drones are multirotors.
Drone basics
By the NVX engineering team, New Delhi
Drones differ mainly in how they create lift. That single design choice decides flight time, range, payload and where the drone can take off. Here are the main types you will meet in India, and how to match them to the job.
Most civil drones fall into one of these designs.
Quadcopters, hexacopters and octocopters lift with several rotors. They take off vertically, hover precisely and are easy to fly, but use more energy, so flight times are shorter. Most camera, inspection and spray drones are multirotors.
Fly like an aeroplane with a wing for lift. Much better endurance and range for large-area mapping, but need space or a launcher to take off and land, and cannot hover.
Take off and land vertically like a multirotor, then fly forward efficiently like a fixed-wing. A tail-sitter sits on its tail for take-off and tilts over into wing-borne flight.
Combine power sources or lift methods, for example fuel and electric power, for longer endurance.
Generate lift by flapping wings, like a bird or insect. Used for research, education and nature-like flight.
One main rotor and a tail rotor. Can carry heavy payloads efficiently but are mechanically complex.
The same airframe type can serve very different jobs depending on its payload.
Small multirotors for photography and video.
Flown through live video goggles, for racing, freestyle and cinematic shots.
Multirotors carrying tanks for spraying and spreading.
Multirotors or fixed-wing with RTK or PPK for accurate maps and models.
Multirotors with zoom and thermal cameras for assets, sites and emergency response.
Configurable platforms used to teach and experiment.
Saksham is NVX's enterprise multirotor for inspection, security, mapping and emergency response. Rocket 01 is a VTOL tail-sitter platform in development. BAAZ is a configurable UAV platform. Titli is a bionic butterfly drone that flies by flapping its wings, an example of an ornithopter.
FAQ
A small multirotor, ideally a nano drone, is easiest to learn on because it hovers and needs no runway.
The wing produces lift efficiently in forward flight, so less power is needed than for rotors holding the drone up.
A drone that takes off and lands vertically while resting on its tail, then tilts forward to fly on its wings. NVX's Rocket 01 is a tail-sitter platform in development.
A flapping-wing aircraft that mimics birds or insects. NVX Titli is a bionic butterfly drone built this way.
Mostly multirotors, because they hover, fly low and slow, and take off from small fields.
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