GEAR UP LNDG.

Narrative

ON APCH I FORGOT TO LOWER THE LNDG GEAR. I NEVER REALIZED I HAD FORGOTTEN UNTIL THE PLANE TOUCHED DOWN. DAMAGE TO PLANE WAS MINOR ON FUSELAGE; DESTROYED PROP. I HAVE APPROX 700 HRS OF RG TIME. I NEVER HARDLY FLY FIXED GEAR PLANES. THE WK PRIOR TO THIS INCIDENT I FLEW 17 HRS IN A FIXED GEAR ACFT. THE MORNING OF JULY XX I FLEW 2 HRS IN A FIXED GEAR ACFT. I TRADED PLANES TO THE RETRACTABLE THAT AFTERNOON TO FLY FROM BIL TO GLL. FLYING THIS FIXED GEAR PLANE HAD A NEGATIVE IMPACT ON MY NORMAL FLT CHK FOR APCH TO GREELEY. THIS SMA WAS RENTED AND ON APCH I DECIDED TO CHK AND SEE IF THE ILS SYS WORKED (I HAVE MY IFR TICKET). MY DOWNWIND AND BASE CUT INSIDE THE OM BECAUSE OF A MICROBURST TSTM IN THE NW SECTOR. APPROX OVER THE INNER MARKER THE GEAR HORN WENT OFF. I THOUGHT THIS HORN WAS THE INNER MARKER HORN. THE HORN CONTINUED OVER THE THRESHOLD SO I DISCOUNTED THAT THE ILS SYS IN THE PLANE WORKED BUT ALSO CHKED THE AIRSPD TO SEE IF IT COULD BE THE STALL HORN. I CONTINUED TO LAND AND AT TOUCHDOWN I REALIZED THE REAL REASON THE HORN WAS SOUNDING. THIS IS MY FIRST INCIDENT. I USUALLY DO NOT CHANGE FROM PLANE TO PLANE AND FIXED GEAR TO A RETRACTABLE GEAR ACFT. WHEN PLTS CHANGE FROM ONE PLANE TO ANOTHER TO ANOTHER THIS INCIDENT ENFORCES THE LOGIC FOR COMPLETE FLT CHKS DURING ALL OPS FROM THE CHKLIST.