Conheça a bici-helicóptero

Desde 1980, centenas de jovens engenheiros tentam vencer o desafio "Sikorsky" que pagará a quem conseguir voar por um minuto e a pelo menos 3 metros de altitude,com controle...tudo no mesmo voo...está difícil mas eles continuam tentando o prêmio de U$ 250.000,00 Since 1980, hundreds of young engineers have entered the Igor I. Sikorsky Human Powered Helicopter Competition. Nobody has won the grand prize of $250,000 for demonstrating "a one minute hovering time, a momentary achievement of 3 meters altitude, and controlling the vehicle within a constrained box -- all in the same flight." But damn, they're sure trying.