Many military aircraft are designed to not glide well, because gliding well means that a plane is less agile. Most modern fighter jets go almost immediately in

Many military aircraft are designed to not glide well, because gliding well means that a plane is less agile. Most modern fighter jets go almost immediately into a tumble if they lose power, since they require constant computerized corrections to remain stable. Its probably a bit more important in a hobbyist or even a commercial plane.