What does XB-42 stand for?

XB-42 stands for "Experimental B-42 Mixmaster twin-engined bomber"

How to abbreviate "Experimental B-42 Mixmaster twin-engined bomber"?

"Experimental B-42 Mixmaster twin-engined bomber" can be abbreviated as XB-42

What is the meaning of XB-42 abbreviation?

The meaning of XB-42 abbreviation is "Experimental B-42 Mixmaster twin-engined bomber"

What does XB-42 mean?

XB-42 as abbreviation means "Experimental B-42 Mixmaster twin-engined bomber"