General aviation pilot reported an near midair collision while flying in the pattern at gif.

Attributes
ACN	1501085
Time
Date	201712
Local Time Of Day	0601-1200
Place
Locale Reference	GIF.Airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Amateur/Home Built/Experimental
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Flight Plan	None
Aircraft 2
Make Model Name	Lake Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 17 Flight Crew Total 1576 Flight Crew Type 1000
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 200 Vertical 0

Narrative:

I had called 10; 5; and 3 miles out to the west from gif and announced I would enter a 45-to-left-downwind for rwy 5. I announced 45-to-left-downwind; then announced I was turning to left downwind. While making my right turn to downwind I passed approx. 200 ft directly in front of a left-turning lake. I steepened my turn and evaded; then called the lake on unicom 123.05. He did not respond; and I assume he was not on the frequency. I did not see where he went after I established on downwind; and he never made any radio calls.

Original NASA ASRS Text

Title: General aviation pilot reported an NMAC while flying in the pattern at GIF.

Narrative: I had called 10; 5; and 3 miles out to the west from GIF and announced I would enter a 45-to-left-downwind for Rwy 5. I announced 45-to-left-downwind; then announced I was turning to left downwind. While making my right turn to downwind I passed approx. 200 ft directly in front of a left-turning Lake. I steepened my turn and evaded; then called the Lake on unicom 123.05. He did not respond; and I assume he was not on the frequency. I did not see where he went after I established on downwind; and he never made any radio calls.

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.