A NASA model motorized sailplane catches a thermal during one of 17 flights to demonstrate that updrafts can extend flight time and save energy for small UAVs.
EC05-0198-12
A NASA model motorized sailplane catches a thermal during one of 17 flights to demonstrate that updrafts can extend flight time and save energy for small UAVs.August 12, 2005NASA Photo / Carla Thomas› Autonomous Soaring Project Description