4 stations, 3- 8000 lb winches, 1 2000 chain falls, lowering 4 4x6 inch beams.
The picture shows the winches between 2x8 upright pairs through bolted at the tops and bottoms. Quarter inch steel brackets hold the stations to the concrete floor. Each station is supported by laterals to the barn and ground. The beams are lowered between the 2x8's. We think the boat weighs no more than 20,000 lbs. Simple logic says that we'll be carrying more as it tips and should not carry more than half of it's total weight.
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