"Get an extra boost during flight with a rocket boost. Fuel gauge stuck in the red? Come to us!"
The line of text in the shopfront.
Radical Rockets sells all of the rockets that can be bought in Learn 2 Fly Mobile. It is located at 400 meters.
Radical Rockets also allows you to upgrade the amount of fuel available to use in flight. The upgrade you have is indicated by a meter on the right side of the window.
A full list is currently being worked on.