Dave, Check out this site from Raymarine -
http://www.raymarine.com/raymarine/Default.asp?site=1&SECTion=2&Page=594&Par ent=40 Pick your 'ducer type and dig in a bit father. They have some great illustrations on placement. Larry Robertie Cheeky Monkey Boston, MA -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Sebastian Cwilich Sent: Friday, May 12, 2006 11:56 PM To: [email protected] Subject: RE: catalina27-talk: Hull layup/Thru Hulls Most transducers come with placement recommendations. Generally you want as close to vertical as possible and undisturbed water flow. In front of the keel and close to the centerline seems like a good option. That said I have the speedo there (under the v-berth), but the depth transducer is under the port settee, which doesn't seem ideal but seemed better than drilling another hole... Sebastian -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of David Lang Sent: Friday, May 12, 2006 8:50 PM To: [email protected] Subject: RE: catalina27-talk: Hull layup/Thru Hulls Which brings up another question: What is the consensus on location for thru-hull placement for these transducers. It looks like our boat's previous owner aborted one attempt so I'm really not sure where the "right" place would be. Thanks for any advice in advance. Dave 6146 Blew Meanie Oakville, Ontario -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Sebastian Cwilich Sent: May 12, 2006 1:28 PM To: [email protected] Subject: RE: catalina27-talk: Hull layup Solid indeed... On a related note, I just put in two new thru-hulls for Raymarine ST-40 bi-data, used the old holes that were there for the original instruments, and, as has been suggested on the board before, HUGE amounts of 5200. Extremely messy (won't ever use 5200 without gloves and protection again -- was peeling it off for a week), but splashed two days ago and not a drop of water... Bottom line: even if the original hole is a bit bigger, at least with the raymarine transducers that have a very wide lip around them, you can get away with using the same hole and not adding any glass. Sebastian
