DR practice
 

I'll admit that there is a similarity between flying in the clouds and sailing
in the fog, if the only instrument you have is a compass.

But to claim that there is "no qualitative difference between navigating" a
plane and boat just shows you have no practical experience doing either.




"JAXAshby" wrote in message
...
It is the height of stupidity (and thus just at your level) to claim that
aviation regulations have some relevance to sailing.

There is absolutely no qualitative difference between navigating an airplane
and navigating a boat, except the airplane also has an instrument to tell you
how far above the ground you are. none.

DR practice
 

hope and pray.

btw, airplanes licensed to fly in blind conditions have multiple redundancies
in their nav gear.

Are you claiming its illegal
for a pilot to make a prediction about their location based on heading and
speed?

I am saying it is absolutely illegal to fly blind with only heading and
speed
info. absolutely. And has been for seven some decades.

And what do you do if you lose your electronics? Get out and walk?

DR practice
 

huh?

From: otnmbrd
Date: 7/18/2004 6:37 PM Eastern Daylight Time
Message-id: et



JAXAshby wrote:
you're the one who calls in Maydays for no reason,


I have never called in a mayday, nor have heard anyone call in a Mayday.

Phew Now here we have the biggest indication yet of jax's lack of
experience ....never heard anyone call in a Mayday......

DR practice
 

huh?

It is the height of stupidity (and thus just at your level) to claim that
aviation regulations have some relevance to sailing.


There is absolutely no qualitative difference between navigating an
airplane
and navigating a boat, except the airplane also has an instrument to tell
you
how far above the ground you are. none.


Don't know too many planes that can stop in midair and hover till they
figure things out....... (just for starters)

otn

DR practice
 

I'll admit that there is a similarity between flying in the clouds and
sailing
in the fog, if the only instrument you have is a compass.

no kidding.

DR practice
 

But to claim that there is "no qualitative difference between navigating" a
plane and boat just shows you have no practical experience doing either.

quite the contrary. it shows I have done both.

actually, in air nav you don't have to make as much allowance for winds, for
the speed of the an airplane is many times the speed of the winds, for the
aircraft flights under discussion here.

DR practice
 

over the knee, jeffies brought it up as proof that DR was precise navigating,
not me.

jeffies is not smart (without asking his wife) to use the word "pilotage".
he
merely said something about known ladmarks. same same.


I didn't see anywhere, where Jeff introduced "pilotage" in a way to
change the definition.



..... and you, typically, took it out of context, and created a new
argument, which was unrelated to the discussion at hand, and tried to
pawn it off as "someone else said".
Lame attempt, try again.

otn

DR practice
 

jeffies, you definitely said *you* know where *you* are because you have
reference points in DR. listen to me. you do NOT have reference points in DR.
you ONLY have where you started (and you don't even know where that is once
you have started), your speed through the medium and which direction mag North
is. That's it.

No jaxie, I didn't mention "known ladmarks" and I wasn't referring to
"pilotage." Its very simple: any DR plot begins with a known reference
point
called a "fix." If you knew anything about DR you would understand that. I
would guess that most pilots know what their starting point is - that's a
reference point.




"JAXAshby" wrote in message
...
jeffies is not smart (without asking his wife) to use the word "pilotage".
he
merely said something about known ladmarks. same same.

I didn't see anywhere, where Jeff introduced "pilotage" in a way to
change the definition.

DR practice
 

over the knee, it is physically impossible to know where you are without
outside references. if you doubt that, call any local college tomorrow
morning, ask for the physics dept and ask the first TA who answers the phone.
Don't be bothered that he or she is only maybe 19 years old. he or she knows
the answer even if you don't.

You are wrong when you say "DR" is never dead on (but that's beyond
your knowledge or experience).


absolutely not. it is physically impossible. period. (except by random
chance, but that defeats the definition).

ROFL. Jax, we all ready know you don't understand the terms used in
"DR", or how it can be applied/used, and the possible variations in
meaning that others may have for the term and it's use.
How then could we expect you to understand that "DR" can be "dead on" in
many cases, but your total lack of experience and low levels of
comprehension put this possibility way beyond your ability to understand?

otn

DR practice
 

yeah, all that physics science stuff.

over the knee, if you expand the definition to include gps charterplotters,
anything is possible.

same same if you expand the definition of breakfast eggs to include three
bricks of 24-k gold, you would be rich.

DR is speed vs time vs direction pointed, and your best guess as to where
that
puts you. that's it, nothing more.

Some people believe that guessing as to current direction and strength and
guessing as to boat drift due to wind speed and direction improves their
best
guess as to where they are, but it doesn't.


Oh boy here we go again.

Cheers