 So we're training Marines on how to conduct helicopter rope suspension techniques out of different platforms of helicopters, the MV-22, Huey's, CH-53, and we basically train them on how to rig the systems on the helicopter and how to actually deploy the Marines when aircraft planes are not practicing. The first week is all there are classes and classes learning different classifications of knots and ropes and things like that. They get a lot of practice at the time here at our shop, and then from there we'll move in to going to the tower and then learning the procedures on how to actually repel and pass off a tower. That prepares them for going out of aircraft. It's a fairly difficult course, and it's very high risk. You get what you put into it.