At 07:54 AM 6/07/05 +0930, you wrote:
>Hi Mike
>
>Of course, they are pulsed. Two quick flashes in close
>succession followed by a break of around one second.
>
>Very simple, but highly effective.
>
>Bernard Eckey
So how do they compare in brightness to strobes? Dick Johnson did some
strobe testing a few years ago and concluded they were effective under a
small range of conditions.
Lights also mean the other glider must be in your field of view and
saiplanes are more restricted than people think in this way. Seems likely
that the false negative cases might be quite high here.
Mike
Borgelt Instruments - manufacturers of quality soaring instruments
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