It was the secret test facility where Kiekhaefer Marine conducted its performance testing and experiments. The Mercury Skunk Works, so to say. Although Lake X was really not a secret, the lake itself, which is actually called Lake Conlin, was not very easy to reach, especially back then. And that was the goal - a place that would not be within easy reach of photographers and other prying eyes. But there was a lot of work to be done before the location could be used; the 1400-acre lake in central Florida was a swampy wilderness full of alligators, snakes, and panthers.
A construction team from Fond du Lac would travel down to Lake X to build up the test facility, which included boat launches, work buildings, and even a motel. The now-famous observation tower became its most identifiable structure.
Aerial image of Lake Conlin (Lake X) as it is today. The main structure appears to be present, however the observation tower is now gone. Image: Google Maps |
It was a sad day, but I was happy that I could at least see the place on its last day.
The characteristic plexiglass bubble windows were a standout feature of the facility. The garages are open because trucks (including the famous Mercury Racing tractor) were being loaded for the move. That night, everybody would be gone. |
50,000 Miles by Outboard: The famous endurance test of a 1957 Mercury Mark 75 engine at Lake X. |
Lake X in 2003 - click images for larger size
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