Amateur/Home Built/Experimental
Flight Crew Private; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 60; Flight Crew Total 4500; Flight Crew Type 300
Human-Machine Interface
Aircraft Equipment Problem Critical; Ground Event / Encounter Gear Up Landing
Aircraft Aircraft Damaged
Aircraft; Weather; Human Factors
Upon base in an approach to land at ZZZ; I reduced airspeed to gear speed; lowered the gear; and set the flaps. I heard the hydraulic pump engage and the airplanes performance and sounds appeared the gear system was in motion. I believed that I had a gear down condition. Upon short final I set the flaps to full and subsequently landed with gear up. Upon investigation after landing the gear switch was noted in the down position. Hydraulic fluid was present on the runway and the aircraft wheel well area. Apparent hydraulic leaks and pump failure was the reason for the gear not to extend properly. The factors involving the incident were no gear warning light or horn. The time of day was near sunset and light and glare in the cockpit as well as the location of the gear up lights were hard to detect. My failure was not verifying the gear down condition via the gear condition light system.
Experimental aircraft pilot reported that that  a hydraulic system malfunction resulted in a gear-up landing.