Charles E. “Chuck” Yeager made humankind’s first supersonic flight in the bullet-shaped Bell X-1 aircraft he nicknamed Glamorous Glennis, after his wife. That aircraft now hangs in the ...

Chuck Yeager flew a Bell X-1 experimental plane ... when the X-1 - nicknamed "Glamorous Glennis" after Yeager's wife - was ready to fly into the "ugh-known," as Yeager and others called it.