Has anyone actually measured the vertical distance from waterline to masthead (exclusive of any VHF antenna, etc.)? I havn't been able to find mast height in my manual and keep forgeting to measure when the boat is on the hard. Do have some low bridges on the intercoastal down Barnegat Bay to Cape May, NJ. Thanks.
vanwinkled@pt.cyanamid.com
CD25D Mast Height- Bridge Clearance
Moderator: Jim Walsh
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Gary
Re: CD25D Mast Height- Bridge Clearance
Dan,
If you check out the pictures of the 25D provided by Dana Arenius, his specs with it say that the mast is 34'11" above the water.
Gary
Allura, 1984 CD25D #170
garym@taxinvest.com
If you check out the pictures of the 25D provided by Dana Arenius, his specs with it say that the mast is 34'11" above the water.
Gary
Allura, 1984 CD25D #170
garym@taxinvest.com
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Gary
Re: CD25D Mast Height- Bridge Clearance
Thanks Gary,Gary wrote: Dan,
If you check out the pictures of the 25D provided by Dana Arenius, his specs with it say that the mast is 34'11" above the water.
Gary
Allura, 1984 CD25D #170
I should have checked there first! dvw Bali Ha'i #69
garym@taxinvest.com
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Chris Reinke
Re: CD25D Mast Height- Bridge Clearance
Dan VanWinkle wrote: If you want to guarantee the mast height accuracy - one method requires you to pull out your High School Trigonometry book. If you can position the boat so the shadow of the mast passes directly over the bow you can create a right triangle using the water line, mast and mast shadow. Measure the distance from the base of the mast to the top of the shadow. Use a protractor to ascertain the angle from the shadow to the top of the mast (angling a pencil in the direction of the sun along the protractor to determine the angle is easiest). Now that you know the triangle base and shadow angle it is time to hit the books and calculate the mast height. A truly excessive procedure but it has been know to work. And you said you would never use trigonometry.
Chris.reinke@Transamerica.com