(Plane in the download is just there to teach you how to use the rovers, but for use press 6 to put up tailgate using VTOL handle) As you have probably noticed among many of my designs, they are designed to carry a rover or atv. I made it so that you all could make personal custom rovers to use with my designs, but for those of you who like to follow manufacture recomendations, these are the rovers designed to work with the planes and cars. The way to use them is pretty simple. Press 1 to release them in teh air, and click 4 to set off the parachutes, This process may nto work the first time, but it will work the next time around. Now make usre all the buttons are off, and click either 1 or 4 to activate one of the two rovers. The rover activated by button 1 is the rover designed to work with the recent RV I made, while the one that responds to 4 is the one that works with all my planes which can carry rovers. Also remember that some designs (most) can carry more than one rover, so you can find creative ways of placing these rovers so you can use multiple.