A pilot reported a near miss with a uav at 1000 feet AGL while on downwind departing 3CK.

Attributes
ACN	1367012
Time
Date	201606
Local Time Of Day	1201-1800
Place
Locale Reference	3CK.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Flight Phase	Cruise
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 3850 Flight Crew Type 500
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy Deviation - Procedural FAR
Miss Distance	Horizontal 200 Vertical 0

Narrative:

Departing VFR from runway 26 at 3CK; I planned to do a left downwind exit from the traffic pattern and continue eastbound to my home airport. The weather was cavu and hot and sunny; with a slightly gusty wind.nearing the midfield point in the downwind at about 1000 ft AGL; I noticed what I first believed to be an opposite direction airplane heading toward me. A normal 30 degree bank was sufficient to maneuver to avoid it. Getting a little closer; I realized it was not a manned aircraft; but rather a tiny drone (and was therefore much closer to me than I initially thought). No abnormal maneuvering was needed to miss the drone; though I probably would have hit it; had I not seen it or taken action.no one else was in the pattern and the radio was quiet; but I nonetheless broadcasted a warning to others over CTAF. I estimate the drone was at 1000 ft AGL; about 1 mile north of 3CK. I never saw it turn or evade; so I presume its operator was unaware of the conflict... Though he/she was probably unaware of a lot of things if he thinks operating at 1000 ft next to an airport is okay.

Original NASA ASRS Text

Title: A pilot reported a near miss with a UAV at 1000 feet AGL while on downwind departing 3CK.

Narrative: Departing VFR from runway 26 at 3CK; I planned to do a left downwind exit from the traffic pattern and continue eastbound to my home airport. The weather was CAVU and hot and sunny; with a slightly gusty wind.Nearing the midfield point in the downwind at about 1000 ft AGL; I noticed what I first believed to be an opposite direction airplane heading toward me. A normal 30 degree bank was sufficient to maneuver to avoid it. Getting a little closer; I realized it was not a manned aircraft; but rather a tiny drone (and was therefore much closer to me than I initially thought). No abnormal maneuvering was needed to miss the drone; though I probably would have hit it; had I not seen it or taken action.No one else was in the pattern and the radio was quiet; but I nonetheless broadcasted a warning to others over CTAF. I estimate the drone was at 1000 ft AGL; about 1 mile north of 3CK. I never saw it turn or evade; so I presume its operator was unaware of the conflict... though he/she was probably unaware of a lot of things if he thinks operating at 1000 ft next to an airport is okay.

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.