Radar signature - Page 4 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation
 Not a Member? 

Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


Like Tree11Likes
Reply
 
LinkBack Thread Tools
  #31  
Old 02-20-2014
Lake Superior Sailor's Avatar
Senior Member
 
Join Date: Aug 2011
Location: Eagle River Wi.
Posts: 908
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 3
Lake Superior Sailor is on a distinguished road
Re: Radar signature

Maybe you should concider your installation.. Mine is mounted at the spreaders and it picks up everything..My girlfreinds son is a Marine Helicopter Electronics engineer, and he was impressed! after he got done playing with it: I had to have him put it back, to my setting so I could use it! ..Dale
__________________
Reluctant Lady
Cal 28, 1967
Lake Superior
Where God got it done!
Reply With Quote Share with Facebook
  #32  
Old 02-20-2014
Senior Member
 
Join Date: Jan 2011
Posts: 102
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 4
SailingJackson is on a distinguished road
Re: Radar signature

Quote:
Originally Posted by Lake Superior Sailor View Post
Maybe you should concider your installation.. Mine is mounted at the spreaders and it picks up everything..My girlfreinds son is a Marine Helicopter Electronics engineer, and he was impressed! after he got done playing with it: I had to have him put it back, to my setting so I could use it! ..Dale
Mine is slightly above the spreaders, as seen here: MarineTraffic

I pick up everything in flat water, but small things are confused with waves in any significant sea state.
Reply With Quote Share with Facebook
  #33  
Old 02-20-2014
Senior Member
 
Join Date: Dec 2012
Location: new england
Posts: 1,609
Thanks: 31
Thanked 24 Times in 21 Posts
Rep Power: 2
outbound is on a distinguished road
Re: Radar signature

Last two boats have put on gimbals just above storm jib set up. Found on prior boats with the relatively narrow beam width of enclosed dome radars heel does make a difference. With small boats to windward if beam doesn't hit them you don't see them. Also regardless of that the higher the dome the bigger the circle around your boat where you don't gets hits but the farther out you can see. I'm mostly worried about ships and use the thing to help navigate so want to see shore contours. Like it reasonably high up. Also like to see weather before it comes to me. Others may want it lower if concern is nearby 18' center consoles which have a poor return.
__________________
s/v Hippocampus
Outbound 46
Reply With Quote Share with Facebook
  #34  
Old 02-20-2014
Senior Member
 
Join Date: Jan 2011
Posts: 666
Thanks: 0
Thanked 17 Times in 17 Posts
Rep Power: 4
Frogwatch is on a distinguished road
Re: Radar signature

The type of reflector with the planes intersecting at right angles (Davis) are best if used in the "catch rain" position but most seem too small to be useful as they are barely bigger than the wavelength being used. A bigger one would be hard to assemble and too heavy but should give much better performance.
So, there is at least one company selling one that is inflatable that seems to be large enough to be useful. Inflate and hoist when needed.
The size issue is why I devised my version made from silver coated ripstop nylon. At 16" diameter, it is considerably bigger than the 12" ones and is actually lighter. It is designed to sort of "pop" open out of its sack and is weighted to always be in optimal orientation. I put all this effort into developing the darn thing making at least 12 versions sewing them on my wife's machine, finally got one I really like and now find that I don't know anybody with a radar to test it.
fryewe likes this.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Signature Box Lostmt Announcements and Suggestions Box 0 06-17-2006 08:01 AM
Signature II, one berth open lacrosse.d.p. Crew Wanted/Available 4 02-02-2001 05:26 AM


All times are GMT -4. The time now is 10:33 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012