Bob44, you are correct, forward bent props meant the engine was making power when it hit. When you sink a prop into the ground or water with a load of power, neither ground or water will compress, this coupled with the fact that the rest of the aircraft is typically decellerating VERY quickly, causes the prop blades to bend themselves forward by "climbing" forward on their pitch. If all the blades are bent backwards, it means that the engine was turning, but not producing power. One or 2 bent back means the engine wasn't turning when it went in.