![]() ![]() I'd reckon that given the majority of yachts now have ample reserves of power, given that an active reflector uses less power than ' A' cabin light, and then only desired at night or in fog, people are deluding themselves when fitting a passive, and the last point from the report is correct.Ĭlick to expand.Not so you are assuming that radar is a factor in all collisions, which is unlikely. These are the bullet points from that report. It is recommended that poorly performing radar reflectors are not fitted as it is possible that the user could be lulled into a false sense of security believing that their chances of detection has been enhanced." It is also recommended that the 2” tube reflector is not suitable since the performance of this target will be even lower. The 4” tube reflector is not considered suitable due to its poor performance. If power is not available then the passive Large Tri-Lens reflector is recommended The Sea-Me is the recommended product if power is available. The RCS of the radar reflector should have a minimum consistent RCS of 2m2. "Based on the results of this report it is recommended that yachtsmen always fit a radar reflector that offers the largest RCS practicable for their vessel. I came to the conclusion that passive reflectors were only of use under ideal conditions long before the Qinetiq report came out I have read it from end to end and it confirmed my previous estimation. A reflector that has been exposed to weather and the violent motion at a masthead will behave considerably worse. But you can be sure that the figures Qinetiq give are for a reflector that is in ideal condition, mounted in the ideal manner. The Qinetiq report used new reflectors in factory condition for testing, and only obliquely considered the effect of age on them. I have experience of passive reflectors, and can also, from my own knowledge (I was involved in a specialized form of radar for many years), state that they are dependent on very precise orientation of the reflecting surfaces. There were also serious issues with passive reflectors at angles of heel typical of sailing craft. The reflector in question (TriLens, I think) would be inappropriate for most leisure craft, being both heavy and bulky. Click to expand.It concluded that only the most expensive and heaviest passive reflector met the relevant standards, and that was marginal.
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