C210 pilot reported an engine problem after takeoff that resulted in a gear up landing.

Attributes
ACN	1452706
Time
Date	201705
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C 210D
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Single Pilot
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 30 Flight Crew Total 600 Flight Crew Type 10
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Event / Encounter Gear Up Landing

Narrative:

After takeoff at approximately 500 feet; after retracting the landing gear the engine started skipping. It appeared to be some sort of fuel issue so I switched on the emergency electric fuel pumps and this did help a little. The engine was running very rough so I headed back to the airport. With the windy conditions and poorly running engine I was barely able to reach the airport runway. I was trying to fly the plane and due to insufficient time and preparation I did not extend the landing gear; which was the reason of the gear up landing.

Original NASA ASRS Text

Title: C210 pilot reported an engine problem after takeoff that resulted in a gear up landing.

Narrative: After takeoff at approximately 500 feet; after retracting the landing gear the engine started skipping. It appeared to be some sort of fuel issue so I switched on the emergency electric fuel pumps and this did help a little. The engine was running very rough so I headed back to the airport. With the windy conditions and poorly running engine I was barely able to reach the airport runway. I was trying to fly the plane and due to insufficient time and preparation I did not extend the landing gear; which was the reason of the gear up landing.

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.