What does HRR stand for?
HRR stands for "Helicopter Rapid Refueling Procedures"
How to abbreviate "Helicopter Rapid Refueling Procedures"?
"Helicopter Rapid Refueling Procedures" can be abbreviated as HRR
What is the meaning of HRR abbreviation?
The meaning of HRR abbreviation is "Helicopter Rapid Refueling Procedures"
What does HRR mean?
HRR as abbreviation means "Helicopter Rapid Refueling Procedures"
