SPACE PHOTOS

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Ref : S04801

Theme :  Aviation-NASA aircrafts-Prototypes  (1538 images)

Title : This unique view, looking directly up at two NASA Dryden F/A-18's used in the Autonomous Formation Flight (AFF) program, was captured by Carla Thomas from another F-18 flying safety/chase.

Caption :

Smoke generators show the twisting paths of wingtip vortices behind two NASA Dryden F/A-18's used in the Autonomous Formation Flight (AFF) program during flight #743. The lead aircraft, F-18 #845 (NASA Dryden's Systems Research Aircraft), piloted by Craig Bomben, is followed closely by another F-18, #847, piloted by Dick Ewers. A vortex is a spiraling current of air emanating from aircraft wingtips as they fly. By mapping the vortex pattern and using sophisticated software to put the trailing aircraft in the optimum location, the energy of the vortex could result in fuel savings for the follower aircraft of 15 percent or more.



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