Well I don’t know than… try figuring out why this happens. Promote your bomb to a variable and try setting its velocity manually by key after a short time after spawning. Try adding a 0.1 seconds delay before setting its velocity. If any of these works, you’ll know that the problem is not in the bomb itself. If it doesn’t work, then the bomb is the problem, and you’ll know where to dig.
The second line you print — it’s the plane’s forward vector, right? Or is it supposed to be the bomb’s initial velocity?