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RE: TWL: Radar Reflectors - double-catchrain

P
paul@whooppee.com
Fri, Nov 24, 2000 7:13 PM

Folks,

Jim sent me the .jpg showing the double-catchrain position, and I've
loaded it up on my own FTP server.  You can find it at

    ftp://ftp.whooppee.com/pub/catchrain.jpg

It's about 340Kbytes.

Enjoy!


|  Paul Goyette    | PGP DSS Key fingerprint: |  E-mail addresses:    |
| Network Engineer, | BCD7 5301 9513 58A6 0DBC |  paul@whooppee.com    |
|  Unix hacker,    | 91EB ADB1 A280 3B79 9221 |  pgoyette@juniper.net  |
|  & World Cruiser  |                          | paul@mv-aftereight.com |

Folks, Jim sent me the .jpg showing the double-catchrain position, and I've loaded it up on my own FTP server. You can find it at ftp://ftp.whooppee.com/pub/catchrain.jpg It's about 340Kbytes. Enjoy! ------------------------------------------------------------------------- | Paul Goyette | PGP DSS Key fingerprint: | E-mail addresses: | | Network Engineer, | BCD7 5301 9513 58A6 0DBC | paul@whooppee.com | | Unix hacker, | 91EB ADB1 A280 3B79 9221 | pgoyette@juniper.net | | & World Cruiser | | paul@mv-aftereight.com | -------------------------------------------------------------------------
S
scaramouche@tvo.org
Fri, Nov 24, 2000 11:50 PM

Being a simple dumb end-user with only knowledge of e-mail, I have no
idea what to do with that info, nor can I handle something called
"web". Any instructions what to do with a "ftp" ?

George Geist

paul@whooppee.com writes: >ftp://ftp.whooppee.com/pub/catchrain.jpg Being a simple dumb end-user with only knowledge of e-mail, I have no idea what to do with that info, nor can I handle something called "web". Any instructions what to do with a "ftp" ? George Geist
P
paul@whooppee.com
Sat, Nov 25, 2000 12:37 AM

Did your mail reader highlight or underline it?  If so, you should be
just able to click on it and it will bring up the picture.  Or, you
can probably just start your browser (Explorer, Netscape, or other)
and cut-and-paste the URL into the "Location:" field.

If neither of those work, I'll be happy to set up a web page from which
this (and other) attachment-wanna-be's can be linked.

On Fri, 24 Nov 2000, George Geist wrote:

Being a simple dumb end-user with only knowledge of e-mail, I have no
idea what to do with that info, nor can I handle something called
"web". Any instructions what to do with a "ftp" ?


|  Paul Goyette    | PGP DSS Key fingerprint: |  E-mail addresses:    |
| Network Engineer, | BCD7 5301 9513 58A6 0DBC |  paul@whooppee.com    |
|  Unix hacker,    | 91EB ADB1 A280 3B79 9221 |  pgoyette@juniper.net  |
|  & World Cruiser  |                          | paul@mv-aftereight.com |

Did your mail reader highlight or underline it? If so, you should be just able to click on it and it will bring up the picture. Or, you can probably just start your browser (Explorer, Netscape, or other) and cut-and-paste the URL into the "Location:" field. If neither of those work, I'll be happy to set up a web page from which this (and other) attachment-wanna-be's can be linked. On Fri, 24 Nov 2000, George Geist wrote: > paul@whooppee.com writes: > >ftp://ftp.whooppee.com/pub/catchrain.jpg > > Being a simple dumb end-user with only knowledge of e-mail, I have no > idea what to do with that info, nor can I handle something called > "web". Any instructions what to do with a "ftp" ? ------------------------------------------------------------------------- | Paul Goyette | PGP DSS Key fingerprint: | E-mail addresses: | | Network Engineer, | BCD7 5301 9513 58A6 0DBC | paul@whooppee.com | | Unix hacker, | 91EB ADB1 A280 3B79 9221 | pgoyette@juniper.net | | & World Cruiser | | paul@mv-aftereight.com | -------------------------------------------------------------------------
N
nh2f@abs.net
Sat, Nov 25, 2000 1:11 PM

Well, if you can't you can't, George.

This is decidedly where a pix is worth a thousand words.  However, let me
try.  It helps if you hold your own reflector in your hands.  Visualize it
as a globe.

Your typical Davis reflector has three planes, two vertical (at 90 degree
angles to each other--running around the globe like lines longitudes), 1
horizontal through the middle (the equator), so that if you papered over the
reflector the result would be a globe shape.

Hold the reflector so that two vertical planes intersect at the north pole
and designate one of those planes fore and aft (the other would be athwart
ship).  On the fore and aft plane, moving forward (or backward), find the 45
degree point halfway between the pole and the equator.  That's the
catch-rain position.  To find the double catch-rain position, also turn the
reflector on it's equator 45 degrees.

The theory is that the catch-rain position is best if the boat is completely
upright.  However, if you hang the reflector in the double catch-rain
position, then when the boat is heeled or rolling, it reflects better
(heeling the reflector into the catch-rain position).  I'd say that the DCR
position is really more applicable to sailboats that operate at a constant
angle of heel.


Rick the Mouseherder - nh2f
Westsail 32 Xapic, Hull #438
Annapolis, MD

A small boat and a suitcase full of money
beats a 40 footer tied to the Bank.

Creative graphic solutions in vinyl for your boat lettering & designs
http://www.mouseherder.com

Visit our Westsail 32 Xapic
http://www.abs.net/~nh2f

The Westsail Owners Assn. Homepage
http://www.westsail.org

Well, if you can't you can't, George. This is decidedly where a pix is worth a thousand words. However, let me try. It helps if you hold your own reflector in your hands. Visualize it as a globe. Your typical Davis reflector has three planes, two vertical (at 90 degree angles to each other--running around the globe like lines longitudes), 1 horizontal through the middle (the equator), so that if you papered over the reflector the result would be a globe shape. Hold the reflector so that two vertical planes intersect at the north pole and designate one of those planes fore and aft (the other would be athwart ship). On the fore and aft plane, moving forward (or backward), find the 45 degree point halfway between the pole and the equator. That's the catch-rain position. To find the double catch-rain position, also turn the reflector on it's equator 45 degrees. The theory is that the catch-rain position is best if the boat is completely upright. However, if you hang the reflector in the double catch-rain position, then when the boat is heeled or rolling, it reflects better (heeling the reflector into the catch-rain position). I'd say that the DCR position is really more applicable to sailboats that operate at a constant angle of heel. ---------------------------------------------------------- Rick the Mouseherder - nh2f Westsail 32 Xapic, Hull #438 Annapolis, MD A small boat and a suitcase full of money beats a 40 footer tied to the Bank. Creative graphic solutions in vinyl for your boat lettering & designs http://www.mouseherder.com Visit our Westsail 32 Xapic http://www.abs.net/~nh2f The Westsail Owners Assn. Homepage http://www.westsail.org =