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Go Back   SailNet Community > On Board > Gear & Maintenance > Loud Crack Sound at Night
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Thread: Loud Crack Sound at Night Reply to Thread
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Topic Review (Newest First)
07-18-2009 03:14 AM
OhioTom My guess would be the window housing you mention. A large sheet can expand and contract quite a bit over the temperature change between night and day. If its bolted on, it could be that there is not enough flexibility in its mounting and that is causing the sound. Are there any cracks?
07-18-2009 02:53 AM
SEMIJim Shrimp that "pack heat," one could say

Jim
07-17-2009 09:46 PM
Vasco Have you looked at the you tube video?
07-17-2009 08:31 PM
JeffBurright Oh Jeez, I had to wiki the pistol shrimp. Thanks for the new nightmares.
07-17-2009 08:03 PM
Vasco The dreaded pistol shrimp again!!! But only one this time.
07-17-2009 07:05 PM
wwilson
Quote:
Originally Posted by JeffBurright View Post
nearly every night I'll hear a single loud crack coming from the direction of either the deck, the side hull, or the window housing
Jeff,

I sail a fiberglas boat slathered with mahogany in its innards and (unfortunately) teak on the deck. Occasionally I hear a similar, "pop" that is the difference in expansion, or contraction between the dissimilar materials. Unless the "pop" precedes a frantic bilge pump, I'll bet your noise is from similar source.

Wayne
07-17-2009 06:04 PM
AdamLein Do you have a neighbor with poor docking skills?
07-17-2009 05:53 PM
JeffBurright
Loud Crack Sound at Night

Hi all,
I was wondering if this sound I hear in the evenings is normal. I live on a wood/epoxy/glass composite sailboat with a fiberglass deck in Seattle, and nearly every night I'll hear a single loud crack coming from the direction of either the deck, the side hull, or the window housing (it's a single large sheet of poly-something adhered and bolted in place).

My guess is that it has to do with the expansion and contraction of one of these components as the day cools off, but it's loud enough to be startling and a little worrisome. Do other folks experience this? Should I worry about the wood cracking or some other kind of separation taking place?

Thanks,
Jeff

 
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