Reply
 
Thread Tools Search this Thread
 
Old 25 September 2002, 03:54   #1
Member
 
Country: New Zealand
Town: Dunedin
Boat name: Zebedee
Make: Zodiac
Length: 3m +
Engine: Mariner 15 2 stroke
Join Date: Aug 2001
Posts: 73
Radar Reflectors on RIBs?

[Prompted by postings in other threads]

With reference to the MCA leaflet and regulation/19, just what is and isn't practicable? And what's the definition of a small craft anyway?

Clearly no tender is going to have a radar reflector, so they must not count as small craft.

I have no A frame, so it's not practicable for me to fit a radar reflector, is it?

Regulation/19 actually uses the words "All ships irrespective of size ...". So am I driving a ship now???

cheers,
Simon
__________________

__________________
Simon Guest is offline   Reply With Quote
Old 25 September 2002, 04:00   #2
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
The smaller you "ship", the more you need the radar reflector!

Have a look at how the RNLI fix theirs - they use the simplest (and cheapest) radar reflector on a pole mounted onto the transom.

I'll be getting one for my SIB!
__________________

__________________
Richard B is offline   Reply With Quote
Old 25 September 2002, 04:51   #3
Member
 
Country: UK - England
Town: Margate / Ramsgate
Boat name: Ballistic
Make: Ballistic
Length: 7m +
Engine: Yam HPDI 250
Join Date: Feb 2002
Posts: 2,835
A worthy post - i was going to post it myself.

One of my objectives for the boat show was to source a radar reflector, but found nothing suitable.

My interpretation of the new reg's is 'must carry' so i intended to source a folding / inflatable (yes they do exsist) type and look to errect it when conditions and circumstances dictate.

Since i saw nothing of this type @ said boat show it's back to web searching i guess. Any suggestions welcome - i'll keep this post notified if i find anything, which should be soon since this is a pressing issue for me.

Daniel.
__________________
Daniel is offline   Reply With Quote
Old 25 September 2002, 04:57   #4
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
Here's some:

Small: http://www.on-line-marine.com/online...f%5Fid=2007014

Medium: http://www.on-line-marine.com/online...f%5Fid=2007015

Large: http://www.on-line-marine.com/online...f%5Fid=2007016

And, err, inflatable... http://www.on-line-marine.com/online...f%5Fid=2007020

Now I believe that you're supposed to mount them so they present a "square aspect" - not pointy bit up as illustrated
__________________
Richard B is offline   Reply With Quote
Old 25 September 2002, 05:02   #5
Member
 
Country: UK - England
Town: Margate / Ramsgate
Boat name: Ballistic
Make: Ballistic
Length: 7m +
Engine: Yam HPDI 250
Join Date: Feb 2002
Posts: 2,835
Blimey why aern't these people in my list of on-line marine people? Folds flat for a tenner, inflatable for 100...

I know which one i'm going for at first. The idea will be to get a friend with radar to see what i 'look like' with the thing cable-tied onto the A-frame.

Cheers
__________________
Daniel is offline   Reply With Quote
Old 25 September 2002, 05:30   #6
Member
 
Country: Canada
Town: Newfoundland
Length: no boat
Join Date: May 2000
Posts: 2,097
During RB4 we tried repeatedly to get a radar return from 5m RIBS with radar reflectors on A Frames and in once case held up in someones hand with absolutely no luck whatsover. (This was using the Raymarine unit of Cyanide.). Personal opinion is that a radar reflector on a RIB is a waste of time, irrespective of what regulation says.
__________________
Alan is offline   Reply With Quote
Old 25 September 2002, 05:41   #7
Member
 
Richard B's Avatar
 
Country: UK - England
Town: Devon
Boat name: White Ice
Make: Ranieri
Length: 5m +
Engine: Suzuki 115hp
Join Date: Jul 2002
Posts: 5,015
Alan,
what type were the reflectors?
The reason I ask is that I believe that the plastic housed "blip" and "prism" type have been tested and shown to be pretty useless, and only the simple fold-flat type (as well as the expensive "active" ones) are any good.
I think it was PBO or some magazine ran the test about a year ago.
__________________
Richard B is offline   Reply With Quote
Old 25 September 2002, 06:20   #8
Member
 
Country: Canada
Town: Newfoundland
Length: no boat
Join Date: May 2000
Posts: 2,097
One was the long thing tube type (highly technical description I know) which Team Spirit had mounted on a mast approx 1 metre above sea level (until the mast broke under the pounding). The other was the traditional "octohedral" (?) metal jobbie which I think you refer to as the simple fold flat type. In the case of the latter, Hugh on Bangor Challenger held the thing up by hand and even when we were a couple of hundred metres away we could get no return.

IMHO the only serious way of producing a radar return on a small open boat like a RIB is to use an active transponder. (i.e. one that detects radar emissions and transmits a pulse in response. Rather like a Racon beacon.) Trouble is if we all had those can you imagine how cluttered a radar screen would look!

The MCA have done an outstanding job of not informing the leisure boating community of the requirements of new international legislation. The RYA ditto. Most of this as far as I understand applies more to boats over 45ft. However alledgedly ALL boats need to have a passage plan before they set out on any journey even be it a blast around the bay. I believe these regulations are largely unenforcable!

Cheers,
Alan
__________________
Alan is offline   Reply With Quote
Old 25 September 2002, 06:24   #9
Member
 
Country: UK - England
Town: Margate / Ramsgate
Boat name: Ballistic
Make: Ballistic
Length: 7m +
Engine: Yam HPDI 250
Join Date: Feb 2002
Posts: 2,835
The RYA ran an informative article in the most recent mag. that provided an explanation of the stuff that applied to leisure craft. I'll try and find it.

Are most people RYA members?

Dan
__________________
Daniel is offline   Reply With Quote
Old 25 September 2002, 06:32   #10
Member
 
Country: Canada
Town: Newfoundland
Length: no boat
Join Date: May 2000
Posts: 2,097
Yeah but only 'cos I had to join to get my ICC after doing my PB2!
__________________

__________________
Alan is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:15.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.