How Do They Fly????

[Covoxer]

Ken! I do appreciate your extended answers!
And I am not going to argue about who is wrong - you or me.
I know we both are right.

Don't get me wrong. You are right with all you say here and you are right strictly speaking!
But what I'm trying to say here is that Clement was asking much narrower question. Will you advice him to read FARs?
No! And that's a point. He just want to know how is it more realistic for him to make his flight planes. And from his first post it looks to me
that he's flying presurized passenger aircrafts on the scheduled basis.
Why? The hint word is "arliner" not an "airline" that you were trying to find definition of in FAA and Webster.
Hey! Dont look for definition. Clement used this word, just ask him what he was talking about.
From my perspective, I think that like the most ppl, he mean planes like 737 and upwards (even though DC-3 is airliner too).
Am I right, Clement?

All commercial airlines make their flights under IFR. This is a RULE.

I would really like to know what FAR you pulled this rule out of as I am hard to find a rule that states "all air carriers must operate IFR."

No, you are looking in a wrong place. Look for the word "rule" in the vocabulary. I bet you'll find some more meanings than the "regulation
stated in FAR".
They can fly it under VFR but they do not. And that's the rule. And once again:

There is a small airline in Alaska that operates normally aspirated twins who operate under both IFR and VFR depending on the
needs.

I don't think that Clement was talking about Dacotas or thomething. I believe that the plane he flies is presurized and turbofan powered.
So this is strictly correct but it's not an answer on the discussed question. I guess...

If you use not pressurized aircraft, use victor airways (low level airways).

Again strictly speaking wrong. I can operate a T210 with bottled oxygen in the lower 20s. Thoes are Jet routes not victor.

Sure you can!
And even more, strictly speaking, airlines can fly their 747 on the victor airways to! But they do not. And you are surely know why.
And please don't star it again that thay sometimes do! Unless you can explain all reasons and situations when and why they do
so
I was talking about victor airways only to mention what they are used for.

So, airlines always fly by airways.

Again not always the case. RNAV has allowed for more direct operations. While most airlines do not take-off and turn direct to their
destination there are parts of their route that is direct. I have been in my King Air many times and heard airlines (it is easy to identify their
callsigns) cleared "direct" i.e. not following an airway. While more frequent in the U.S. this is less frequent overseas. Flying direct portions
of a route saves gas which saves money. The air carriers are all over saving money.

Yes, you are right. Economy is of a great priority for aircarriers and the time is too. So, for example, they sometimes fly under 10'000ft at
higher speeds than 250KIAS, with no clearence for this.
What, you don't believe me? Ask any flight controller. :badsmie:
But how can you advice where it is more realistic to follow airway or to use a shortcut? It's not that simple. You can't allways be cleared for
this. So to keep it real, just follow airways. Only this way you can be sure that your flight plan is correct.
Am I wrong again?

Now that we are done strictly speaking, or at least I hope we are.

You are, my friend
I'm not strictly speaking here, I'm just giving advice for the particular case that os discussed here. And I think that things I say are preatty
good advice for Clement in his simming!
But if he would like to find out some more theory about real world flight planning, than your answers, Ken are much better for him!

You will see that while I did divest I also tried to answer his question and maybe
open up other areas he did not think about.

Yes you did!
And I think it's a great!

Sorry if I offended the forum police.

No you don't!
I believe so...

There's nothing better than a nice little discussion. Hey! Isn't it what are forums for?