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Old 02 December 2004, 19:45   #31
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At the risk of offending some posters and the manufacture...

Don't bother with the tube type on a RIB if you re going to use the bolt hole to mount it so its vertical.

I m currently in dispute with a supplier after my second one failed at the base and snapped off... apparently this is an 'unheard of' fault - strange then I ve had 2 break and know of one other RibNetter who had same problem.

They clearly cannot stand the vibration/punishment of being mounted on a RIB. Many more £35s and I could start saving for one of those radar bouys to tow!

SDG
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Old 03 December 2004, 04:13   #32
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Quote:
Originally Posted by codprawn
Cyclops Technologies Ltd ............ Recommended and used by Alan Priddy on Spirit of Portsmouth
Alan in fact Recommends 'An empty bean tin on a piece of string will do everything the most expensive Radar Reflector'.

A Cylinder is about the worst shape you could have for radar reflection, in fact if you were trying to design a stealth reflector you could not come up with a better shape.

Reading all the literature available it looks like the catch rain type reflector offer the best performance for the least money, they are recommended by RORC, and used by Trinity house and the RNLI.

I have a collapsible one which I hang from the A frame as and when but I would like a ‘solid’ one I can permanently mount on a pole. Des
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Old 03 December 2004, 05:13   #33
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Quote:
Originally Posted by SDGANDER
At the risk of offending some posters and the manufacture...

Don't bother with the tube type on a RIB if you re going to use the bolt hole to mount it so its vertical.

I m currently in dispute with a supplier after my second one failed at the base and snapped off... apparently this is an 'unheard of' fault - strange then I ve had 2 break and know of one other RibNetter who had same problem.

They clearly cannot stand the vibration/punishment of being mounted on a RIB. Many more £35s and I could start saving for one of those radar bouys to tow!

SDG
Agreed, the diving club is on its second or third. These are the single bolt type, there is another version which attached top and bottom which might be better if it can be fitted.

Pete
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Old 03 December 2004, 05:28   #34
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My cousin, who used to drive tankers for Shell and is now slumming it on cross channel ferries, claims the most visable reflector on a small vessel is.......









wait for it .......................






Wet Sails!
It seems that small water droplets reflect radar signals very well.
It could save fuel too
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Old 07 December 2004, 10:01   #35
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I had the tube type mounted on my RIB and the first day out on a calm summers day it fell off as the bracket snapped. Plastimo replaced it FOC and I made up a small bracket which attached 1/2 way up to stiffen it. been fine for 8 months of rough water so far.
I agree they are a waste of time though, bought mine simply so I could say I had one to comply with SOLAS rather than any hope it was effective
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Old 06 February 2005, 15:29   #36
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Old thread I know..... but I thought I would add a bit

Yesturday we were out on a 36" Motor cruiser fitted with Raymarine C80 and 2kw radome for a trip fro Portishead up under the two Severn Bridges and back to Portishead

I was very impressed that the radar picked up the 7-8 little day fishing boats that were mainly at anchor to the sides of the main channel. Looking round the marina most of these are fitted with the simple (and cheap) tube type radar reflector

The C80 displays the radar plot as an overlay to the standard chart and so when the radar findes a bouy the radar plot is more or less over the bouy on the chart. - By looking for Radar returns that did not correspond to any markings on the chart we were then able to spot the vessel by sight (it was quite misty)

We were also able to use the MARPA to aquire a target on the vessels and track their course and speed. Again the C80 tracked the small fishing boats well, untill they were well out of range.

So - overall I was very impressed by the C80 + Radar, and impressed that it picked up the small radar reflectors. - Based on this I think that having one on the rib is a very good idea! - I presume that the big vessels and shore stations pick up an even better "blip"

Cheers
Jools
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