i always struggle to get names for roller coasters

Can you help!!!???

We need to know what the theme is at least.

a b&m dive machine

no theme so far but i might create one

Dive Bomb

or

Dive Bomber

what about a wooden coaster by gci

Depends on what type. Is it a racer, a boardwalk type, or just a random layout.

For all three: 1. Thunderhead Racers 2. Cyclone 3. It depends on the theme of the coaster.

And for the first, the dive machine, I would say Terminal Velocity.

Coaster with a theme > Coaster without a theme.