Luke Bell / YouTube
Luke Bell creates solar-powered drone
It is an attempt to show that the so-called “indefinite flight” is technically possible, at least under favorable conditions.
A YouTuber, content creator and aeronautical engineering enthusiast demonstrated that a drone solar it can stay in the air for several hours, in an experimental project that seeks to overcome one of the main limitations of electric multirotors: autonomy.
The tells the story. The person responsible is South African Luke Bell who, together with his father, Mike Bell, developed a quadcopter powered essentially by solar energy and managed to keep it in flight for 5 hours, 2 minutes and 21 secondsunofficially overcoming the record resistance tool for this type of device.
The experience is part of a longer trajectory of innovation linked to the world of high-performance drones.
The same family duo was already known in the sector for previous projects in the field of competition drones, including the series Peregreen, with which he established several speed records.
Luke Bell also reached an unofficial stationary flight record for a multirotor, with 3 hours, 31 minutes and 6 seconds, before moving on to this new bet centered on solar energy.
It is an attempt to show that the so-called “indefinite flight” is technically possible, at least under favorable conditions.
Bell argues that such a drone, capable of flying for many hours without relying on conventional recharges, could have applications in areas such as agriculture, mining, surveillance and cartography.
The main advantage would be in the reduction of so-called “battery anxiety” – the operational limitation caused by the short autonomy of drones currently available on the market.
The construction of the device went through several attempts. In a first version, the Bells experimented with a drone powered exclusively by solar panels, without a battery or capacitors. The system could fly, but it proved to be very vulnerable to variations in solar radiation, wind and the fragility of the panels themselves, which made it impractical. This first iteration crashed after just three minutes.
A Decisive evolution emerged in the second version. The creators redesigned the structure to reduce inertiathey took weight off the set and improved the fixation of the solar panels.
Most importantly, they integrated a small support circuit with diodes and a auxiliary battery.
This system automatically comes into operation when solar production drops below what is necessary, for example during the passage of clouds or in the face of gusts of wind.
According to Bell, without this complementary energy support the drone would not have been able to achieve this result.
The feat does not yet represent the arrival of commercial drones capable of flying without limits, but it shows that the combination of solar capture, weight reduction and intelligent energy management can open up new possibilities for the sector.
The Bell project therefore suggests that extreme autonomy, until now seen as unlikely in electric multirotors, may be approaching practice.
