To expedite the recoveries, crews were prepositioned with their vehicles along a paved highway in the area where impact was expected.[56] On a typical flight the dummies were separated from the balloon by radio command and descended by parachute.[57] Prompt recovery of the dummies and their suspension racks, which usually did not land in the same location resulting in extensive ground and air searches, was essential for researchers to evaluate information collected by the instrumentation and cameras. To assist the recovery personnel, a variety of methods were used to enhance the visibility of the dummies: smoke grenades, pigment powder, and brightly colored parachute canopies.[58] Also, recovery notices promising a $25 reward were taped to an exposed portion of a dummy.[59] Local newspapers and radio stations were contacted when equipment was lost.[60] The Bravest Man America was introduced to Col. John Paul Stapp on December 10, 1954, when he became known as both the “the bravest” and “the fastest” man on earth. Stapp earned these titles following a rocket sled test that accelerated him to 632 miles per hour. He reached this speed in just five seconds—faster than a .45 caliber bullet—and was decelerated to a stop in 1.4 seconds, subjecting his body to more than 42 times the force of gravity! While this was America’s introduction to Col. Stapp, the 1954 rocket sled test that examined aircraft restraint devices and human responses to accelerative/decelerative forces and windblast, was just one of many achievements of this legendary Air Force physician. [Illustration: Fig. 33. The first “space doctor,” Lt. Col. John P. Stapp (now a retired Colonel) being strapped into the rocket sled Sonic Wind Nᵒ 1, on December 10, 1954, at Holloman AFB, N.M. Courageously, Stapp was his own volunteer subject on 29 rocket sled tests and earned two awards of the Legion of Merit and the Cheney Award for valor and self-sacrifice. (_U.S. Air Force photo_)] Born in Bahia, Brazil to American missionary parents, Stapp sold pots and pans door to door during the Depression while he earned both undergraduate and graduate degrees in zoology and chemistry at Baylor University. He went on to earn a doctorate in biophysics from the University of Texas, and a doctorate in medicine from the University of Minnesota.