When we think of a drone, we normally imagine a device that takes off vertically, remains suspended in the air and allows us to record impossible shots quite easily. The Blackbird is not about that. Its objective is much more extreme: fly as fast as possible. In this race, stability in flight matters less than efficiency at high speed, and so a change in the propellers has given it a surprising boost.
The official record remains in the hands of Luke Bell and Mike Bell. According to Guinness World Records, they reached an average speed of 408.60 mph, equivalent to 657.59 km/h, on December 11, 2025, with the Peregreen V4 in Cape Town. It was not their first time: Guinness points out that father and son had already achieved this same record in 2024, with 480 km/h, and in June 2025, with 580 km/h.
With that bar on the table, the Blackbird attempt has a very specific reading: it does not replace the official record, but it puts it under pressure. Ben Biggs and Aidan’s drone reached 453 mph, approximately 730 km/hduring a test pass. That fact is the most striking, although it is also the one that needs the most context. For now, what we have is an unofficial demonstration with a huge figure and the question if it can be repeated under verified conditions.
A record-breaking race played on the propellers
Here is the nuance that separates a spectacular figure from a truly comparable measurement. On the 730 km/h pass there was a tailwind of 54.7 km/h, so the estimated airspeed was reduced to 674 km/h. On the upwind pass, the drone reached about 640 km/h. The average of the two was close to 684 km/h, and that is why that data weighs more than the maximum peak when we try to understand how far the project really went.
The key is how those new propellers behave when the drone stops flying like a conventional quadcopter and starts moving like a controlled projectile. The carbon fiber blades have a high pitch angle and that allows them to be more efficient at high speed because they are more parallel to the air that the drone passes through. It is not a free advantage: on takeoff and at low speed they push worse, so the motors have to demand more from the battery in that initial phase.
The other important detail is in the serrated leading edge of the blades. As they explain, this shape generates small vortices on the surface of the propeller and helps the air not to move laterally along the blade, but rather to come out backwards to push the drone. It also helps to stabilize the boundary layer, that film of air attached to the surface that influences drag. In practice, it allows working with steeper angles without the propeller losing efficiency and behaving more like a piece that removes air than one that generates thrust.
The flip side of pushing a quadcopter to the limit is that problems can also arise. Blackbird lost connection at about 633 km/h, due to a combination of antenna geometry, Doppler effect and signal overload. In the second, the drone ended up damaged after a hard landing, when the batteries ran out a few meters from the ground. The official record remains that of the Peregreen V4, but the Blackbird has made it clear where the next attempt may be. The question, now, is obvious: will they call Guinness World Records to try to certify it?
Images | Drone Pro Hub
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