G
Guest
Guest
Arrr the Red Light story ...
OK - on ships generally the chart lighting is NOT red as many boaters assume - it is in fact dimmed white lighting ..... due to the low power fed to it via the dimmer - the light appears to go red.
Onto why red or any other colour etc. - the object is to not to read all - but to try and not destroy night vision - or at least prevent too much destruction of night vision. As an ex Bridge Watch-keeper I can say honestly that no matter what you do - night vision is compromised to some degree.
Further ... The International Code Of Signals Book that all Ships carry ... it has all the 1, 2, 3 letter signal codes listed incl. the medical ones ... has, (haven't seen latest but assume is same) the Medical section on pale green pages ... this in fact when viewed under dimmed lighting ... especially that which reduces to a red hue - is more easily readable than a white background page. So there is more to this "night light" subject than first appears ...
Sorry to repeat a comment I made before - but the Pride of Bilbao / Yacht tragedy - IMHO the report is full of supposed theories and bumf - that the issue is clouded and smothered by what-ifs ... the issue of night vision and all the tests ... also the bit about glasses etc. - great - but did it really cause - or contribute ?
My post here is to come to a solution to be able to read my instruments at night ... to not have to resort to a flashlight destroying ALL night vision.
????????
OK - on ships generally the chart lighting is NOT red as many boaters assume - it is in fact dimmed white lighting ..... due to the low power fed to it via the dimmer - the light appears to go red.
Onto why red or any other colour etc. - the object is to not to read all - but to try and not destroy night vision - or at least prevent too much destruction of night vision. As an ex Bridge Watch-keeper I can say honestly that no matter what you do - night vision is compromised to some degree.
Further ... The International Code Of Signals Book that all Ships carry ... it has all the 1, 2, 3 letter signal codes listed incl. the medical ones ... has, (haven't seen latest but assume is same) the Medical section on pale green pages ... this in fact when viewed under dimmed lighting ... especially that which reduces to a red hue - is more easily readable than a white background page. So there is more to this "night light" subject than first appears ...
Sorry to repeat a comment I made before - but the Pride of Bilbao / Yacht tragedy - IMHO the report is full of supposed theories and bumf - that the issue is clouded and smothered by what-ifs ... the issue of night vision and all the tests ... also the bit about glasses etc. - great - but did it really cause - or contribute ?
My post here is to come to a solution to be able to read my instruments at night ... to not have to resort to a flashlight destroying ALL night vision.
????????
