Why wasn't Alice's built-in event for moving an object with the arrow keys used in the seaplane world in Tutorial 3C?

Look up the aviation terms pitch, roll, and yaw in a dictionary, or find a Web site on basic aeronautics, and read about them. How are they related to our seaplane controls?

Create a simple Alice world to let a user drive a vehicle, such as a car, around on the ground. The Vehicles folder in the Local Gallery has a Zamboni machine, which could be driven around the lakeSkaterDemoStartworld.