Unless Duran has found really small employees I think South African company ALTI is just about to fly what I believe to be the largest separate lift thrust (SLT) in the world.
This is perhaps the most popular VTOL method at the moment. A multirotor handles the take off and landing and then a petrol motor sorts out forward flight.
The ALTI Reach is our upcoming ‘big brother’ to the Transition. Nearly identical in terms of configuration and design, the ALTI Reach offers a much larger VTOL aircraft with ultra-efficient fixed wing flight performance.
The Reach has a six-metre wingspan and is expected to fly for more than 20 hours with a 7kg payload.