N70LR

The pilot was approaching the non-towered airport from the north making a straight in approach to runway 22 and was using the autopilot when still nine miles out. There was a 15 knot headwind and the airplane was still fast and a little high when 4.2 miles out, but the pilot reduced the power to zero percent and he "reserved" lowering the gear because he was still at 185 knots. The pilot said "the approach felt normal, the next thing I knew we were sliding down the runway". The airplane slid to a stop on the right side of the runway with the landing gear still retracted. There were no injuries to the four persons on board, but substantial damage to the left rear spar and center spar carrythrough and aft fuselage structure.