Cessna 310 pilot reported a gear-up landing.

Attributes
ACN	1728357
Time
Date	202002
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Tower
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	Landing
Flight Plan	VFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 4500 Flight Crew Type 200
Person 2
Function	Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 4500 Flight Crew Type 200
Events
Anomaly	Ground Event / Encounter Gear Up Landing

Narrative:

I was doing touch and go's. The first two touch and go's were uneventful. The last landing was intended to be another touch and go. I put the landing gear lever in the down position once cleared for the option and selected flaps 1. Once on final I positioned the props and mixtures to full forward. When I retarded the throttles I heard a beeping noise and looked at my airspeed indicator. I added some power assuming the stall warning horn was indicating a low airspeed and the beeping went away. On short final I again retarded the throttles and the beeping came back. I again looked at my airspeed indicator; in the flare I was still trying to mentally process the beeping and concentrate on the landing phase of flight. The aircraft then touched down with a unusual noise but smooth. Once on the ground I thought that I had a flat tire because the aircraft started to veer a little and there was a metal grinding noise. My first mental indication that the gear was not down and locked was when the aircraft started to slide slightly and I no longer had directional control. Once the aircraft came to a complete stop I then shut the aircrafts mags and master. I then instructed my passenger to egress the aircraft and we both walked to the side of the runway.

Original NASA ASRS Text

Title: Cessna 310 pilot reported a gear-up landing.

Narrative: I was doing touch and go's. The first two touch and go's were uneventful. The last landing was intended to be another touch and go. I put the landing gear lever in the down position once cleared for the option and selected flaps 1. Once on final I positioned the props and mixtures to full forward. When I retarded the throttles I heard a beeping noise and looked at my airspeed indicator. I added some power assuming the stall warning horn was indicating a low airspeed and the beeping went away. On short final I again retarded the throttles and the beeping came back. I again looked at my airspeed indicator; in the flare I was still trying to mentally process the beeping and concentrate on the landing phase of flight. The aircraft then touched down with a unusual noise but smooth. Once on the ground I thought that I had a flat tire because the aircraft started to veer a little and there was a metal grinding noise. My first mental indication that the gear was not down and locked was when the aircraft started to slide slightly and I no longer had directional control. Once the aircraft came to a complete stop I then shut the aircrafts mags and master. I then instructed my passenger to egress the aircraft and we both walked to the side of the runway.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.