All are presidential airplanes.  These three were the planes of Eisenhower, Roosevelt, and Truman, respectively, although Truman also used the Sacred Cow for a while.  Columbine III and the other two are all currently in the Air Force Museum in Dayton, as well as numerous other presidential planes, including SAM 26000, which took President Kennedy on his fateful trip to Dallas and on which President Johnson was sworn in.  Air Force I is now used to refer during flight to any plane carrying the President.  A good historical account of presidential planes is on the Internet at home.rose.net/~dingdong/Aircraft/PA01a.html.  SAM 26000 is a dead giveaway on an Internet search and so was not included.

Correct answers came from  Delmar Burkitt,  Alma Litten,  and  Bob Fritz.
 
 
 
 
 

The May Quest has several dozen potential names, but is an exclusive group.  Don't let appearances fool you, it's the voices that are important in this Quest.  It's not radio ... where have these famous persons been heard but not seen?

Ron Howard	Pai Zadora
Yo Yo Ma	Mel Brooks
Rosemary Clooney	Bob Costas
Henry Mancini	Jane Pauley
Bonnie Raitt	John McEnroe
Julius Erving	Katerina Witt
Jane Pauley	Armistead Maupin
Chris Durang	Cindy Crawford

 
 
Send me your answers or comments (see  puzzle page  for contact numbers).