I see the problem. Those jack stands blocking up the
bridge deck are doing just the opposite of what that
area of the boat is supposed to do. If the stands are
taking too much weight the hulls are sort of hanging
from the bridge deck. In the water the hulls support
the bridge deck.

In the water viewed from the front the bridge deck
would have a tendency to be curved down a little in
the center portions. Jacked up as it shows the bridge
deck would be curved the opposite way. This would
warp the house in an abnormal manner.

S.Simon


"Jeff Morris" wrote in message news
Its a catamaran - it can rest on its two keels. Prouts can be stashed like that because
the keels are solid.

My keels, however, are "sacrificial" so its best to jack under the bridge, supporting most
of the weight under the bulkheads:

http://www.sv-loki.com/Along_the_Way/UnderBelly.jpg



"Simple Simon" wrote in message
...
Check the jack stands. Some fool probably has the ones in the
middle way too tight and doing most of the work and bending
the boat in the process.

S.Simon


"Jeff Morris" wrote in message
...
I had a odd experience yesterday. I went to the boat to finish winterizing, and saw
my
neighbor trying to get into his boat, a Prout 37 (which, BTW, has done 3
trans-Atlantic
crossings). The companionway door was latched and locked - he was baffled because
the
door had never latched in his experience (he's had the boat a year and always locked
with
an external padlock). After a while we were able to pry it open and figure out what
had
happened.

On Thursday the mast had been pulled. This seems to have relaxed the hull enough that
the
latch, which had not recently engaged, now caught the latch plate. We estimate maybe
1/16
inch of flexing.

Before you jump on the fact that a catamaran hull had a bit of flex, here's what the
owner
said "I surprised there would be any flex at all - but my old C&C 37 flexed so much
when
we unrigged her that it opened a deck leak."