 The helicopter sitting here is weighing between 16,000 and 17,500 pounds, so when it comes in and land on very loose soil or dirt mud, it's going to sink into the ground. That can cause accidents, that can cause damage to the landing gear of the aircraft and even the belly of the aircraft if it goes too deep. Sand civilization hardens the ground so helicopters can operate here and it speeds up our maintenance to be able to pick the aircraft and the aircraft back in the fight as quickly as possible.