"When I saw these for sale during the Holidays I ordered them immediately. Fun concept to draw my younger daughter further into the world of Lego!
We quickly realized that the helis will only fly without a pilot and windscreen and only with me pulling the cord as hard as I dare.
A slight re-design would make these fly! Roughly 20%- 30% larger rotor, and more mass in the disk to keep it spinning would likely result in better performance. Hope to see this updated in the future. Its a great concept!"