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Jeff Morris July 18th 04 03:08 PM

DR practice
 
Pilots laughing at me? Are these the pilots who don't know what airport they
take off from? No wonder you don't think it physically possible to navigate
without a GPS - you don't know where you are to start!




"JAXAshby" wrote in message
...
Of course DR requires a known reference point. If you weren't so convinced
navigation is impossible without a GPS you might learn how it works.


jeffies, virtually every last pilot in the country with a valid license is
laughing at you. "flying blind" is illegal, and has been for seven some
decades, and for good reason. All pilots know that and know why.

you have changed the definition of DR to that of "pilotage", as in going from
one known landmark to the next.




JAXAshby July 18th 04 04:09 PM

DR practice
 
yeah, 200,000 pilots in the country, and every last one of them is either
laughing at you for your lack of skills and understanding, or shaking their
heads at the danger you put yourself and your family so stew ped lee in.

Pilots laughing at me? Are these the pilots who don't know what airport they
take off from? No wonder you don't think it physically possible to navigate
without a GPS - you don't know where you are to start!




"JAXAshby" wrote in message
...
Of course DR requires a known reference point. If you weren't so

convinced
navigation is impossible without a GPS you might learn how it works.


jeffies, virtually every last pilot in the country with a valid license is
laughing at you. "flying blind" is illegal, and has been for seven some
decades, and for good reason. All pilots know that and know why.

you have changed the definition of DR to that of "pilotage", as in going

from
one known landmark to the next.












Joe July 18th 04 05:13 PM

DR practice
 
"Wally" wrote in message ...
Joe wrote:

Ah I see what your saying, sorry.

Let me rephrase the question


What about the other two questions - the ones where you ask for the course
*to steer* and the speed *made good*? Do you mean the course and speed made
good?


yes.

I guess it's a Texas thing. Us Texans were raised to think that if you
want to do something you do it, no question about it.

So when I say "you want" to steer a compass course of 080 thats what
you steer.

Sorry for your confusion.

What Im looking for in the answer is your cmg and your smg.

joe

Jeff Morris July 18th 04 05:13 PM

DR practice
 
Jaxie, all those pilots are laughing at your misunderstanding of navigation and
are thankful that you don't fly anymore!

I'm also grateful that you don't sail whenever there is the smallest chance of
fog - that eases my burden considerably!

As for "putting my family at risk" you'll be happy to know that I travel with
GPS (plus a spare) and Radar, and unlike you, actually know how to use them.
However, I'm also prepared to cope with the loss of electronics, and when
conditions are ripe for fog, I chose routes that are easier for DR navigation if
the need arises.

Claiming that safe navigation in restricted visibility is impossible is to claim
that cruising, especially in the Northeast (or the Northwest) in the summer is
impossible. But I guess for you it is impossible.

Is this why you never tell us about any trips you've been on when you were
actually in charge? It seems like the only trips you talk about is when you
crewed for an "incompetent" skipper.




"JAXAshby" wrote in message
...
yeah, 200,000 pilots in the country, and every last one of them is either
laughing at you for your lack of skills and understanding, or shaking their
heads at the danger you put yourself and your family so stew ped lee in.





otnmbrd July 18th 04 06:04 PM

DR practice
 


JAXAshby wrote:
over the knee obviously does not, so let's help out a bit.

Main Entry: de·duce
Pronunciation: di-'düs, dE-; chiefly British -'dyüs
Function: transitive verb
Inflected Form(s): de·duced; de·duc·ing
Etymology: Middle English, from Latin deducere, literally, to lead away, from
de- + ducere to lead —more at TOW
Date: 15th century
1 : to determine by deduction; specifically : to infer from a general principle

synonym see INFER
- de·duc·ible /-'d(y)ü-s&-b&l/ adjective


You gotta make up your mind, jax. You were talking about "dead
reckoning" before, the term many use when employing time/direction/speed
only.
"deduced reckoning" applies when allowance is made for wind and current
..... something you say is impossible.
Mayhaps you should go back to the books for some further study.

otn


otnmbrd July 18th 04 06:14 PM

DR practice
 
...... and your point is? The subject is "dead reckoning", "deduced
reckoning", "ded reckoning", not "fixes", or is this some random thought
which just found it's way out of your brain.
I fail to see how this relates to my post below or anything else, for
that matter.

otn

JAXAshby wrote:
over the knee, **if** you have known references point **then** you are not
deducing anything at all about where you are.

why are you being such a dumb cluck?


yeah, that's it. yesterday means tomorrow, green means frying pan and DR


means

whatever you want, today at 7:53 PM Eastern Daylight Time when posting as


what

the frick ever.



Now, now, jax .... don't get yer spandex speedo in an uproar .....
simply stated, you just don't know enough about actual navigation to
have the ability to carry on an intelligent discussion on the subject.
BTW, next time you look up "dead reckoning", "ded reckoning", "deduced
reckoning", read the whole definition.
Although I doubt you'll be able to comprehend the possibilities .......

Tataaa

otn




JAXAshby July 18th 04 07:58 PM

DR practice
 
jeffies, what you proclaim as a safe practise has been illegal in the air for
seven some decades. now, I am fully aware that *YOU* believe *YOU* are above
the laws of physics, but get your wife to explain it to you.

Jaxie, all those pilots are laughing at your misunderstanding of navigation
and
are thankful that you don't fly anymore!

I'm also grateful that you don't sail whenever there is the smallest chance
of
fog - that eases my burden considerably!

As for "putting my family at risk" you'll be happy to know that I travel with
GPS (plus a spare) and Radar, and unlike you, actually know how to use them.
However, I'm also prepared to cope with the loss of electronics, and when
conditions are ripe for fog, I chose routes that are easier for DR navigation
if
the need arises.

Claiming that safe navigation in restricted visibility is impossible is to
claim
that cruising, especially in the Northeast (or the Northwest) in the summer
is
impossible. But I guess for you it is impossible.

Is this why you never tell us about any trips you've been on when you were
actually in charge? It seems like the only trips you talk about is when you
crewed for an "incompetent" skipper.




"JAXAshby" wrote in message
...
yeah, 200,000 pilots in the country, and every last one of them is either
laughing at you for your lack of skills and understanding, or shaking their
heads at the danger you put yourself and your family so stew ped lee in.













JAXAshby July 18th 04 08:02 PM

DR practice
 
"dead" reckoning is NEVER dead on. It can't be. It is physically impossible.

even guessing for wind and current makes no difference.

now, over the knee, *if* you -- like jeffies before you -- wish to change the
definition to the term to include pilotage, well go ahead. At least you would
be safer should you ever find yourself on the water.

over the knee obviously does not, so let's help out a bit.

Main Entry: de·duce
Pronunciation: di-'düs, dE-; chiefly British -'dyüs
Function: transitive verb
Inflected Form(s): de·duced; de·duc·ing
Etymology: Middle English, from Latin deducere, literally, to lead away,

from
de- + ducere to lead �more at TOW
Date: 15th century
1 : to determine by deduction; specifically : to infer from a general

principle

synonym see INFER
- de·duc·ible /-'d(y)ü-s&-b&l/ adjective


You gotta make up your mind, jax. You were talking about "dead
reckoning" before, the term many use when employing time/direction/speed
only.
"deduced reckoning" applies when allowance is made for wind and current
.... something you say is impossible.
Mayhaps you should go back to the books for some further study.

otn










JAXAshby July 18th 04 08:03 PM

DR practice
 
over the knee, you are agreeing with me and disagreeing with jeffies. did you
lose track of the world around you for a period of time?

...... and your point is? The subject is "dead reckoning", "deduced
reckoning", "ded reckoning", not "fixes", or is this some random thought
which just found it's way out of your brain.
I fail to see how this relates to my post below or anything else, for
that matter.

otn

JAXAshby wrote:
over the knee, **if** you have known references point **then** you are not
deducing anything at all about where you are.

why are you being such a dumb cluck?


yeah, that's it. yesterday means tomorrow, green means frying pan and DR

means

whatever you want, today at 7:53 PM Eastern Daylight Time when posting as

what

the frick ever.


Now, now, jax .... don't get yer spandex speedo in an uproar .....
simply stated, you just don't know enough about actual navigation to
have the ability to carry on an intelligent discussion on the subject.
BTW, next time you look up "dead reckoning", "ded reckoning", "deduced
reckoning", read the whole definition.
Although I doubt you'll be able to comprehend the possibilities .......

Tataaa

otn












otnmbrd July 18th 04 09:05 PM

DR practice
 
As per usual, a number of problems with this post.
1. It is in no way a response or related to my post.
2. You are wrong when you say "DR" is never dead on (but that's beyond
your knowledge or experience).
3. I didn't see anywhere, where Jeff introduced "pilotage" in a way to
change the definition.

Sheesh, you do ramble.

otn

JAXAshby wrote:
"dead" reckoning is NEVER dead on. It can't be. It is physically impossible.

even guessing for wind and current makes no difference.

now, over the knee, *if* you -- like jeffies before you -- wish to change the
definition to the term to include pilotage, well go ahead. At least you would
be safer should you ever find yourself on the water.


over the knee obviously does not, so let's help out a bit.

Main Entry: de·duce
Pronunciation: di-'düs, dE-; chiefly British -'dyüs
Function: transitive verb
Inflected Form(s): de·duced; de·duc·ing
Etymology: Middle English, from Latin deducere, literally, to lead away,


from

de- + ducere to lead �more at TOW
Date: 15th century
1 : to determine by deduction; specifically : to infer from a general


principle

synonym see INFER
- de·duc·ible /-'d(y)ü-s&-b&l/ adjective


You gotta make up your mind, jax. You were talking about "dead
reckoning" before, the term many use when employing time/direction/speed
only.
"deduced reckoning" applies when allowance is made for wind and current
.... something you say is impossible.
Mayhaps you should go back to the books for some further study.

otn












otnmbrd July 18th 04 09:10 PM

DR practice
 
NO jax, I am not agreeing with you, I am responding to your post to me
..... a point you seem to be having trouble following.
Right now, I'd say you've lost track of what you've said to who and who
you are responding to about what ... but, a general state of confusion
is considered normal for you.

otn

JAXAshby wrote:
over the knee, you are agreeing with me and disagreeing with jeffies. did you
lose track of the world around you for a period of time?


...... and your point is? The subject is "dead reckoning", "deduced
reckoning", "ded reckoning", not "fixes", or is this some random thought
which just found it's way out of your brain.
I fail to see how this relates to my post below or anything else, for
that matter.

otn

JAXAshby wrote:

over the knee, **if** you have known references point **then** you are not
deducing anything at all about where you are.

why are you being such a dumb cluck?



yeah, that's it. yesterday means tomorrow, green means frying pan and DR

means


whatever you want, today at 7:53 PM Eastern Daylight Time when posting as

what


the frick ever.


Now, now, jax .... don't get yer spandex speedo in an uproar .....
simply stated, you just don't know enough about actual navigation to
have the ability to carry on an intelligent discussion on the subject.
BTW, next time you look up "dead reckoning", "ded reckoning", "deduced
reckoning", read the whole definition.
Although I doubt you'll be able to comprehend the possibilities .......

Tataaa

otn




Jeff Morris July 18th 04 09:31 PM

DR practice
 
It is the height of stupidity (and thus just at your level) to claim that
aviation regulations have some relevance to sailing. However, I do recall that
a number of pilots said your claim about aviation regs was faulty. Perhaps you
could give a reference? No? I didn't think so.

And what does a pilot do if they don't have GPS? Are you claiming its illegal
for a pilot to make a prediction about their location based on heading and
speed?

You've been claiming that everyone is doing illegal, dangerous things, but
you've never said exactly what is illegal or dangerous. All we know for sure is
that you're the one who calls in Maydays for no reason, and is lost at Hatteras.



"JAXAshby" wrote in message
...
jeffies, what you proclaim as a safe practise has been illegal in the air for
seven some decades. now, I am fully aware that *YOU* believe *YOU* are above
the laws of physics, but get your wife to explain it to you.

Jaxie, all those pilots are laughing at your misunderstanding of navigation
and
are thankful that you don't fly anymore!

I'm also grateful that you don't sail whenever there is the smallest chance
of
fog - that eases my burden considerably!

As for "putting my family at risk" you'll be happy to know that I travel with
GPS (plus a spare) and Radar, and unlike you, actually know how to use them.
However, I'm also prepared to cope with the loss of electronics, and when
conditions are ripe for fog, I chose routes that are easier for DR navigation
if
the need arises.

Claiming that safe navigation in restricted visibility is impossible is to
claim
that cruising, especially in the Northeast (or the Northwest) in the summer
is
impossible. But I guess for you it is impossible.

Is this why you never tell us about any trips you've been on when you were
actually in charge? It seems like the only trips you talk about is when you
crewed for an "incompetent" skipper.




"JAXAshby" wrote in message
...
yeah, 200,000 pilots in the country, and every last one of them is either
laughing at you for your lack of skills and understanding, or shaking their
heads at the danger you put yourself and your family so stew ped lee in.















JAXAshby July 18th 04 10:19 PM

DR practice
 
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.




JAXAshby July 18th 04 10:21 PM

DR practice
 
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).

JAXAshby July 18th 04 10:23 PM

DR practice
 
maybe, over the knee, you don't know what reference points are, or what
constitutes a reference point. jeffies, doesn't/didn't.

like Ragu, "It's in there".

NO jax, I am not agreeing with you, I am responding to your post to me
.... a point you seem to be having trouble following.
Right now, I'd say you've lost track of what you've said to who and who
you are responding to about what ... but, a general state of confusion
is considered normal for you.

otn

JAXAshby wrote:
over the knee, you are agreeing with me and disagreeing with jeffies. did

you
lose track of the world around you for a period of time?


...... and your point is? The subject is "dead reckoning", "deduced
reckoning", "ded reckoning", not "fixes", or is this some random thought
which just found it's way out of your brain.
I fail to see how this relates to my post below or anything else, for
that matter.

otn

JAXAshby wrote:

over the knee, **if** you have known references point **then** you are not
deducing anything at all about where you are.

why are you being such a dumb cluck?



yeah, that's it. yesterday means tomorrow, green means frying pan and

DR

means


whatever you want, today at 7:53 PM Eastern Daylight Time when posting

as

what


the frick ever.


Now, now, jax .... don't get yer spandex speedo in an uproar .....
simply stated, you just don't know enough about actual navigation to
have the ability to carry on an intelligent discussion on the subject.
BTW, next time you look up "dead reckoning", "ded reckoning", "deduced
reckoning", read the whole definition.
Although I doubt you'll be able to comprehend the possibilities .......

Tataaa

otn












JAXAshby July 18th 04 10:30 PM

DR practice
 
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.

JAXAshby July 18th 04 10:31 PM

DR practice
 
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.

JAXAshby July 18th 04 10:33 PM

DR practice
 
is lost at Hatteras.

if you can't see the lights at night at Hatteras you don't know where the
lights are at night at Hatteras. There is a reason those lights are there.

JAXAshby July 18th 04 10:34 PM

DR practice
 
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.

Jeff Morris July 18th 04 11:12 PM

DR practice
 
"JAXAshby" wrote in message
...
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?






otnmbrd July 18th 04 11:18 PM

DR practice
 


JAXAshby wrote:
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


Nav July 18th 04 11:22 PM

DR practice
 


JAXAshby wrote:

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


otnmbrd July 18th 04 11:25 PM

DR practice
 


JAXAshby wrote:
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


Capt. Mooron July 18th 04 11:28 PM

DR practice
 

"Nav" wrote in message

| Oh boy here we go again.

Hey Man.... what do you mean by that statement????

Too confused to state that in Layman's terms and present a viable counter
point???


CM




otnmbrd July 18th 04 11:34 PM

DR practice
 


JAXAshby wrote:
maybe, over the knee, you don't know what reference points are, or what
constitutes a reference point. jeffies, doesn't/didn't.

like Ragu, "It's in there".


jax, you really,really do need help with "reading comprehension".
You can't just take what someone writes and interpret it to suit your
needs or point of view ..... go back and read what he said, then before
you write something, take the time to think what it means.

otn



Joe July 18th 04 11:34 PM

DR practice
 
(JAXAshby) wrote in message ...

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



Not that simple Jax. But let me try to help you to understand.

You go 5 knots " speed" "pointed" west thru a current that is going 5
knot to the north. You can do a DR plot that will tell you the
direction you actually went not the direction you were pointed. And it
will also take in account of current speed that may help or hinder
your speed. It's a real easy plot. Take out an old chart if you have
one and use the compass rose to help.... that's the way we teach the
kindergardners here.

Good Luck, and dont hurt yourself. Ask your mom for a crayon.

Joe

otnmbrd July 18th 04 11:37 PM

DR practice
 


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......


otnmbrd July 18th 04 11:39 PM

DR practice
 


JAXAshby wrote:
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


Wally July 18th 04 11:50 PM

DR practice
 
Joe wrote:
If you want to sail a course of 080, at a speed of 10 knots and you
sail thru a current having an estimated set of 140 and a drift of two
knots
What would be your course and speed made good?.


089, 11.14 knots.


If you want to sail a course of 095 through a current having a set of
170 and a drift of 2.5 knots, using a speed of 12 knots
What would be your course and speed made good?.


106, 12.88 knots.


You want to sail a course of 265 and a speed of 15 knots through a
current having a set of 185 and a drift of 3 knots
What would be your course and speed made good?.


254, 15.8 knots.


--
Wally
www.artbywally.com
www.wally.myby.co.uk



Jeff Morris July 19th 04 12:11 AM

DR practice
 
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.






Jeff Morris July 19th 04 12:13 AM

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.




JAXAshby July 19th 04 12:39 AM

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?














JAXAshby July 19th 04 12:40 AM

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......










JAXAshby July 19th 04 12:40 AM

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










JAXAshby July 19th 04 12:41 AM

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.

JAXAshby July 19th 04 12:44 AM

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.

JAXAshby July 19th 04 12:45 AM

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










JAXAshby July 19th 04 12:48 AM

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.














JAXAshby July 19th 04 12:50 AM

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










JAXAshby July 19th 04 12:53 AM

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











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