This is the 4410th most frequent Russian word.
взлетно
"Взлетно" relates to "takeoff" or something associated with the action of taking off.
The term 'взлетной' here describes the type of strip (полосе), indicating that it's associated with takeoff.
Самолет начал двигаться по взлетной полосе.
The airplane started moving along the runway.
Here, 'взлетная' modifies 'дорожка,' specifying that it's a takeoff pathway.
Взлетная дорожка была в отличном состоянии.
The runway was in excellent condition.
In this creative usage, 'взлетное' metaphorically describes an object as having qualities associated with flight or taking off.