How high have you flown non pressurized plane

[Kritchlow]

There is when the altimeter is below 29.92.

28.92 - 29.91 flight levels start at 190.

Actually (just for fun, not that it matters) I still thought the flight levels started at 180. I just thought the lowest usable FL was 190. Transition altitude still remains 18,000... No?

 

[Timbeck2]

The lowest usable flight level is 190, then 18,000' is just that. It still exists, it just isn't considered a flight level anymore. Using this scenario, if a controller asks you to say altitude when you are at 18,000' climbing to a flight level above, what do you say? "The altitude formally known as flight level 180"?

 

[Kritchlow]

The lowest usable flight level is 190, then 18,000' is just that. It still exists, it just isn't considered a flight level anymore. Using this scenario, if a controller asks you to say altitude when you are at 18,000' climbing to a flight level above, what do you say? "The altitude formally known as flight level 180"?

I have never (in the US) been told to maintain 18,000 feet.

Of course it exists... I can set a local altimeter at 41,000 feet and it's now an altitude.

 

[Ted]

Not true, FL180 is a flight level. It just isn't always usable depending on local barometer.

 

[Timbeck2]

Nor will you. You stated that there is no 18,000' in the United States. I didn't say anyone will fly there.

 

[Velocity173]

Two different things. Aircraft altitude assignment and O2 requirements. 801BH was referring to an O2 requirement, not an altitude assigment. FAR 23.1447 uses 18,000 ft MSL and 25,000 ft MSL and not FL.

 

[bikert]

Nor will you. You stated that there is no 18,000' in the United States. I didn't say anyone will fly there.

1. Highest VFR altitude is 17500.
2. If FL180 is not available, you still cannot use 18,000 for VFR. Refer to rule 1.

You can't use it for VFR, and IFR cannot use it. Therefore it is as good as doesn't exist. Nobody is allowed there.

 

[petrolero]

There is when the altimeter is below 29.92.

28.92 - 29.91 flight levels start at 190.

Indeed.... But you still can't fly at 18,000 feet..

Yes you can. You just don't call it 18,000 feet.

 

[Kritchlow]

Yes you can. You just don't call it 18,000 feet.

It's only 18,000 feet if the local altimeter happens to be 29.92.

 

[luvflyin]

Off topic question. If your using those oxygen nose things don't you have focus on breathing through your nose or does it come Naturally?

It comes naturally for me. I just breathe like usual.

 

[bikert]

It comes naturally for me. I just breathe like usual.

I can't do those canulas. After a while that cold dry O2 blowing into my nostrils starts driving me nuts. I will admit to only trying it a couple of times and maybe I could eventually get used to it. If I have to be on O2 I prefer the mask.

 

[petrolero]

It's only 18,000 feet if the local altimeter happens to be 29.92.

No, FL180 is only 18,000 if it's 29.92" Hg - true enough. But you said 18,000 ft doesn't exist in the US. But of course 18,000' exists. We may not call it that, but if it didn't exist then how could you get to 18,001'? Or 19,000 ft. You'd get sucked into a 1-foot spacetime discontinuity?

This is me calling your smart ass comment and raising you a pedantic one.

 

[Kritchlow]

No, FL180 is only 18,000 if it's 29.92" Hg - true enough. But you said 18,000 ft doesn't exist in the US. But of course 18,000' exists. We may not call it that, but if it didn't exist then how could you get to 18,001'? Or 19,000 ft. You'd get sucked into a 1-foot spacetime discontinuity?

This is me calling your smart ass comment and raising you a pedantic one.

lol... All good. As I said before, 41,000 feet also exists. Plus, it probably happens on occasion, for a short time period, that somebody is actually flying at 41,000 feet. Heck, it's possible someone at FL400 is flying at 41,000 feet.