Some Travellifts have integral scales, so they could lower it onto the
blocks until the scales read 40 percent of the original weight, and then
place the jack stands.
Note that the scales may not be calibrated accurately, or the operator
may not really know how to use them. One time I had a travellift
operator tell me that Stella Blue was a really heavy boat. He said it
weighed 24,000 pounds. Now, I'll admit I have the boat overloaded for
cruising, but if my boat displaces 24K pounds the waterline would be
about even with the toe rails. <VBG>
However, you could just use 40 percent of whatever the scale says.
Wal
sam wrote:
Not sure how your supposed to know when you’ve got 60% on the keel.
--
s/v Stella Blue
www.wbryant.com
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