Maro Island to Marathon

Discovery":2u4qgwe7 said:
Then on toward Corpus Christi, Texas. We hope to get there before Christmas.
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We hope to see you guys in Texas as well as Jim & Joan on our way home -- late February/early March is my current thinking.

I was just reading in Trailer Life about someone whose flat-screen TV got damaged by leaving it out in the RV in freezing weather. Have you (or anyone else) had a problem with cold temperatures damaging the Raymarine screens?

Warren
 
Doryman":22xzbizy said:
...
I was just reading in Trailer Life about someone whose flat-screen TV got damaged by leaving it out in the RV in freezing weather. Have you (or anyone else) had a problem with cold temperatures damaging the Raymarine screens?

Warren
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Not to hijack this thread, but there was quite a bit of discussion on this on an RV owners forum I participate in. The consensus was: as long as the LCD is allowed to come to temperature before use, it shouldn't be a problem.
 
JamesTXSD":2s1hh20u said:
Doryman":2s1hh20u said:
...
I was just reading in Trailer Life about someone whose flat-screen TV got damaged by leaving it out in the RV in freezing weather. Have you (or anyone else) had a problem with cold temperatures damaging the Raymarine screens?

Warren
Click to expand...

Not to hijack this thread, but there was quite a bit of discussion on this on an RV owners forum I participate in. The consensus was: as long as the LCD is allowed to come to temperature before use, it shouldn't be a problem.
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Jim, please clairfy. What "temperature"? If it's in a boat, should we light off a wallas or other heater and bring the temp up? What if we don't have a wallas or other heater?

charlie
 
Hi Charlie,

Here's a snip from that discussion...

<<Contrary to popular belief, LCD (Liquid Crystal Display) Technology does not involve any sort of liquid whatsoever. LCD panels use tiny microchips that "twist" open to allow light to pass through the display to your eyes. There is no risk of these Crystal "twisters" to freeze. They can get cold, and their "twisting" can be reduced however, but that's about it. I do suggest allow the tv to warm up before use

You probably need to check the owner's documentation for the particular television, but here is a sample:
Environment Considerations
Operating Temperature: 32 - 104 degrees F (0 - 40 degrees C)
Operating Humidity: 20 - 80%
Operating Altitude: 0 - 9180 feet (0 - 2800m)
Storage Temperature: 14 - 122 degrees F (-10 - 50 degrees C)
Storage Humidity: 10 - 90%
Storage Altitude: 0 to 9840 feet (0 - 3000m) >>

The discussion went on to discuss the condensation on internal parts of the TVs that is more of a problem than temperatures.

My thinking is that if it's warm enough for you to consider being IN/ON the boat, it should be warm enough to operate your chartplotter.
 
Thanks, that clears it up, sort of. I knew LCDs weren't really "liquid" and not susceptible to freezing but the recommendation to allow the tv to "warm up" before use is kind of silly. If you turn it on to "warm up", the screen comes to life, don't know of any gadget that lets you turn it on while the screen is "off".... :shock:

Thanks

Charlie
 
TomRay":3vuujim0 said:
Hmmm... Jim's post makes me wonder what happens to an LCD above 10,000 ft?
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If you take one much above 10K ft in an unpressurized vehicle, you probably won't know unless you have oxygen.... :shock:

Charlie
 
Charlie,
Most people can operate well above 10,000 feet without any ill effects. In fact there is a pass on I-70 west of Denver where you climb over 11000 feet. I remember it well because I towed a heavy RV over it with my old Ford diesel (non-turbo) and the black smoke was so thick I couldn't see anyone behind me!
 
It's my understanding that LCDs have no problem above 10,000'. Plasma displays, on the other hand, will buzz and can be problematic at high altitudes.

The FAA has regulations for time spent above 12,500' and the use of oxygen. I have done high altitude training at an Air Force facility. The effects of hypoxia are sneaky, and the reactions can be different from person to person. We were taken to altitude and the oxygen turned off. When asked questions, we had to write the answers... when brought back to a breathable altitude, I couldn't read my own handwriting, and at the time, I felt fine (or thought I did). Also did training where the pressure at 28,000' simulated was blown rapidly... you have about 30 seconds of useful consciousness.

Personally, I would not want to be in an airplane at 15,000 feet with no oxygen. While it certainly varies from person to person, the effects can be way worse than driving/flying while intoxicated. Some people get silly, some get agitated, I found that I tend to get quiet (I was told it was apparent that I was trying to focus my concentration). It's amazing how vibrant colors get when you are then put on oxygen!

Sorry for getting OT.

Best wishes,
Jim
 
I guess it's how you may define "much above" :lol: :lol:

Kind of like what the meaning of "is", is.... :roll:

Back to the topic, whatever it may have been....
 
JamesTXSD":3qf2d5es said:
The FAA has regulations for time spent above 12,500' and the use of oxygen.
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Continuing our little off-topic journey, the last time I knew the rules I seem to recall that the 12,500 was for pilots carrying passengers. It wasn't until 15,000 that passengers were to be supplied with oxygen, which is why I used that number. But you're right that it's going to be different for a triathlete vs an old out-of-shape smoker. We used to fly the Beech 18 at 12,500 if we were going far enough to justify climbing that high, and I always felt fine. Made me a little sleepy, and my feet always got cold up there.

Now I'm wondering why plasma screens don't like altitude, but didn't this thread start out being about Florida, where we consider 16 feet to be generous elevation? ;)
 
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