Originally Posted by
Agile
I twin engine is not light either compared to a single engine. That is especially true for light weight helicopters.
Real value if the potential to enter urban areas with a single-engine aircraft exist.
Ariel 2E engine dry weight is about 110 kgs. 250 kW brushless motor is around 50 kgs. With batteries, it's about the same if not more.
Difference is that that second engine can keep you aloft for a lot more than 3 minutes.