== Planes with ducted fan engines can fly. Binksternet is wrong as usual == 

 There is enough power to fly a ducted fan jet engine. If you do not believe just take a look at this aircraft that flew in October 1932. 
 http://en.wikipedia.org/wiki/Stipa-Caproni 

 "Once again, this article cannot state with certainty that the Coanda-1910 aircraft was the first jet aircraft. Gibbs-Smith and Winter performed extensive historical research and determined that it did not fly, ever, and that it did not have combustion in the air stream, a requirement for flight in air, as without it there would not be enough thrust."(Binksternet)