What does HFF stand for?
HFF stands for "Hypervelocity Free Flight"
How to abbreviate "Hypervelocity Free Flight"?
"Hypervelocity Free Flight" can be abbreviated as HFF
What is the meaning of HFF abbreviation?
The meaning of HFF abbreviation is "Hypervelocity Free Flight"
What does HFF mean?
HFF as abbreviation means "Hypervelocity Free Flight"
