Two On A Big Ocean The Story of the First Circumnavigation
of the Pacific Basin
in a Small Sailing Ship


      

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Re: Radar mounting height

From: Sean F Holland (juno.com!spindrift)
Date: Wed Oct 16 1996 - 00:41:11 EDT

  • Next message: Rick Kennerly: "Thoughts on the Annapolis Sailboat Show"

    On Tue, 15 Oct 1996 16:22:35 -0400 "Don.Taylor" <Don.Taylor-fulcrum.com>
    writes:
    >How high (up a mast) can you practically mount a radome?
    >Because of my rig, I don't think that I can mount one below about 35
    >feet above the water-line.
    >I am looking at buying a unit like the Raytheon RL-9.

    Don,

    Why do you wish to go to all the trouble & expense of mounting the Radar
    way up your mast. You will have to get an extension cable approximatly
    $50.00, and unless you wish to have the cable exposed will have the
    problem of how to secure the cable inside the mast. Also even a 16 LB
    radome up 35 feet will add 560 ft LBS when heeled, requiring the
    addition of 140 LBs of ballast 4' down.

    It might be far easier to install the Radar on a pole aft, sufficiently
    high enough to clear any Radar shadow from the boom. We did this with
    our RL-9 and accomplished the entire installation for less than the cost
    of the extension cable, plus might still have a Radar if we ever lost the
    rig. Good Sailing, sean


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