What does XH-20 stand for?

XH-20 stands for "McDonnell Little Henry Experimental ram-jet helicopter"

How to abbreviate "McDonnell Little Henry Experimental ram-jet helicopter"?

"McDonnell Little Henry Experimental ram-jet helicopter" can be abbreviated as XH-20

What is the meaning of XH-20 abbreviation?

The meaning of XH-20 abbreviation is "McDonnell Little Henry Experimental ram-jet helicopter"

What does XH-20 mean?

XH-20 as abbreviation means "McDonnell Little Henry Experimental ram-jet helicopter"