thats exactly what we did - the UW Nav was done at the shore site and so was the night dive - thinking back now (IMHO, hindsight is a wonderful thing ) i didn't really take much notice of the 'lay of the land' as such when we did the Nav dive.
Thats also what they say in the AOW book to dive the site during the day before doing the night dive.
think i'll take more notice of whats around me next time i dive and do some natural navigation
Lottie
amtrosie thanks for the info. So I guess my led doesn't focus the light, I might have to try another one. I know previous post said the size and amount of batteries doesn't matter, but how so? I've also noticed most led are C4 or maybe C8 while halogen are mostly D4 or D8.
First the batteries are there to support the power requirement of the LED. Remember that LED stands for Light Emitting Diode. So the bigger the Diode, the more more the power required to support. There are lots of torches out there using 4 AA, 3,4, or 6 C cell batteries. It is important to note that these "bulbs" (diodes) are very durable and require less power than others (hence increased battery life). They are however, more expensive. The halogen bulbs are more brittle, but less expensive. The cost is the primary reason that most of the larger lights are halogen, and not LED
This may be me being "picky", but the reflector focuses the light beam. The light is already there, it is the beam of light that requires attention. For that is what is used for signaling.
All right, I am now officailly a geek!!
Well done Lottie!
Now go and get some dives in!
SSMD Diver.
Today is a good day to Dive.
Yay Lottie! Wahooo! *cheering, applause* Great job ...