We looked at the historical attempts that had been out there and realized that, despite the fact that we have a lot of modern innovations to draw on today that weren't available previously, we have modern composite materials, we have aircraft engines that get good fuel economy and have
Hemos revisado los intentos históricos que se han producido y nos dimos cuenta que, aunque tenemos muchas innovaciones modernas, para hablar de las actuales que no estaban disponibles antes; tenemos modernos materiales compuestos, motores de aviación económicos en combustible y relaciones de