What does HLLTR stand for?
HLLTR stands for "helicopter low level transit route"
How to abbreviate "helicopter low level transit route"?
"helicopter low level transit route" can be abbreviated as HLLTR
What is the meaning of HLLTR abbreviation?
The meaning of HLLTR abbreviation is "helicopter low level transit route"
What does HLLTR mean?
HLLTR as abbreviation means "helicopter low level transit route"
