***Link*** :: [The Secret of Flight 8: The Induced Drag](https://www.youtube.com/watch?v=aP8jvyD1Ovc) ***Description*** :: `= this.link` ***Author*** :: [[Alexander Lippisch]] #### Summary * [[Induced Drag]] explained using smoke chamber. * Explains why high [[aspect ratio]] wings are used (and better for) highly economical planes, since they produce less surface friction and more widely distribute the pressure below and above to reduce [[Wingtip Vortex|wingtip vortices]]. * In cruise flight, 50% of power goes to overcoming air resistance and 50% goes to generating [[lift]]. #source