More inventions from the Discovery Class.  Starting in the upperleft corner, going clockwise,

George, Jack

George flies in outer space

And crashes into space.

 

Wheels, Bea

Wheels that fly

 

Car-puller, Isla

It pulls cars up (It’s a lever)

 

Catapult, Felix E.

When it catapults, it sends off a warning to all the people

In front of it and then it launches.