|The following is based on information from Fallout: The Board Game.|
Vertibird is a dynamic location in Fallout: The Board Game.
An old engineer by the name of Tully repaired a Brotherhood of Steel vertibird to make it in functional condition and uses it to help fly people around the wasteland for a price. Tully will talk about an encounter he and his brother had with a deathclaw and states how his brother was killed, if you avenge Tully's brother, you will get a half price when using his vertibird.
On the board
The Vertibird will appear on the map at the highest level settlement and move to any empty space when it is used.
If one player avenges Tully's brother, all players will get the discount.