Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 17-07-2015, 21:13   #1
Registered User

Join Date: May 2011
Location: Mandurah, Western Australia
Boat: Roberts 57 Staysail Schooner
Posts: 61
Low profile mast head

I have just purchase a new boat and am would like to berth in a marina behind a bridge. The mast will make it through with around 50 cm clearance, but I am worried that the extra height on top of the mast from the wind instrument and VHF antenna are going to make it a little too close for comfort.

What are my options to minimise the height above the mast? Obviously, the tri color is a requirement, no way around that... but I am thinking I could relocate the VHF antenna to a spreader and accept the small loss in range. But what about the wind instrument? Are there any mount options that would put it forward of the mast rather than on top? Thinking above the head sail maybe a meter forward of the mast to get good clean wind.
pwillems is offline   Reply With Quote
Old 17-07-2015, 23:20   #2
Senior Cruiser
roverhi's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: Kona, Hawaii
Boat: 1969 Pearson 35 #108
Posts: 5,450
Send a message via Yahoo to roverhi
Re: Low profile mast head

IIRC, bridge clearance figures are at high tide. If you time your exit and entrance at other than high tide you'll have a few extra feet of clearance.

You can mount the VHF antenna on the side of the mast at the mast head with a bracket. Only the antenna will then be above the mast head and should deflect without damage if you push the clearance too close. Wind instruments are another story. There are LED mast head tricolor lights that are very low profile. They'd only add a few inches to the clearance needed.
Peter O.
'Ae'a Pearson 35
roverhi is offline   Reply With Quote
Old 18-07-2015, 01:26   #3
Registered User

Join Date: Jun 2014
Location: Hanging with the owner's daughter ;-)
Boat: Crewing on a maxi cat
Posts: 2,729
Re: Low profile mast head

There are various options like these:
Wind sensor HRÂ*-Â*nke marine electronics
Standard wind sensorÂ*-Â*nke marine electronics
And fabricating something similar isn't too difficult. We made some stupid long, & tall ones for the America's Cup, in efforts to get the sensors out into clear air.

The catch though (on length & placement), is that you don't want your instruments in a spot where the upwash from your various sails, makes the reliability of your readings go to crap. That, & putting them in some locations creates a bit of a risk of them getting snagged by, say, a spinnaker sock/snuffer, or even the kite itself.

I'm thinking that it couldn't hurt to talk to a couple of pro's: an electronics guy or two, & a rigger or two also. Given that both professions deal with this kind of gear on a daily basis. Well, assuming that is, that there fairly far up the food chain/learning curve.
Meaning, in English, pick a couple of the higher end guys (especially those that deal with racing boats) to discuss this with, as they should have heaps more experience in dealing with such things.

Also, spend some time talking to the manufacturer of your gear, & stay on the phone with them until you get a guy who's been there for a while, & knows the in's & out's of their gear. So that he can advise you on various options which likely aren't stock, or in their product catalog.

The Uncommon Thing, The Hard Thing, The Important Thing (in Life): Making Promises to Yourself, And Keeping Them.
UNCIVILIZED is offline   Reply With Quote

head, mast

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale: Taylor low profile HATCH ~ black ~ 19½x19½" Seaworthy Goods Classifieds Archive 3 18-09-2012 19:59
Lewmar Low Profile Hatches 507 x 507 cat man do Construction, Maintenance & Refit 1 23-07-2012 14:04
For Sale: Bowmar Hatch - Large, Low-Profile - Never Installed Seaworthy Goods Classifieds Archive 2 27-10-2011 04:36
Flexible / Low-Profile Solar Panels? Paul Elliott Electrical: Batteries, Generators & Solar 13 13-01-2010 09:48

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:10.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.