Product Description EPP/EPOareoplane EPS (Expanded Polypropylene) foam is a fairly recent innovation that has revolutionized the slope soaring segment of our hobby and is rapidly finding applications to the mainstream R/C community. Slope combat enthusiasts are making scale warbirds out of this material for full contact combat. These planes are flown in 30+ mph ridge lift and are designed to RAM into each other at high speed and crash to the ground with no damage. EPP foam doesn't dent or break. It has a "spongy" quality to it, so on impact it compresses and pops back to shape. You can nose dived an EPP plane straight into the ground during "rough landings" only to have it bounce about 3 feet in the air and come to rest upside down. The only damage will be some grass stains on the tape covering. Having this kind of crash resistance is truly liberating.
