Myth: 1 G barrel rolls are impossible.

Dudley Henriques wrote
This completely opens the Pandora's box on the issue of barrel roll,
which is then dealt with as moving the aircraft through all 3
dimensions as tightly or as loosely as the envelope will allow.

Dudley...just point us to a reference that states the above. :-)

I have posted several of my references in the past, waiting on you.

Bob Moore

On 2007-06-18 12:51:04 -0400, Bob Moore said:

Dudley Henriques wrote
This completely opens the Pandora's box on the issue of barrel roll,
which is then dealt with as moving the aircraft through all 3
dimensions as tightly or as loosely as the envelope will allow.

Dudley...just point us to a reference that states the above. :-)

I have posted several of my references in the past, waiting on you.

Bob Moore

Quite frankly Morre, I don't believe you really want references at all,
but rather references YOU agree with. :-)
You seem to enjoy quoting Bill Kershner, who is a source I highly
respect and have used for many years.
Considering this, I have gone to the DL (dusty library) room up here
and dug out a Kershner source on this for you.
If you go to page 289 in Bill's "Flight Instructor Manual" third
edition, you will find a section on Barrel Rolls.
If you read that section through, you will notice that Kershner first
treats the issue of Barrel Roll in the Classic manner that asks for the
90 degree heading change at the inverted point half way through the
roll.
Now read on a bit further to where Bill summerizes the issue of Barrel
Rolls. On page 290, down at the bottom of the page, start reading where
Bill writes;
"ANOTHER METHOD OF DOING A BARREL ROLL"
This section completely explains in plain English what I have been
telling you since God knows when about barrel rolls; that what YOU are
describing as a barrel roll, is simply the way barrel rolls are taught
as a precision maneuver by many training programs (including the Navy
BTW).
All I have been trying to explain to you from the gitgo is that this is
NOT the only way a barrel roll can be performed AERODYNAMICALLY. What
you have been describing as a barrel roll is nothing more or less than
ONE PROCEDURE by which a Barrel roll can be performed.
If you like, I will be most happy to fly with you in a Decathlon at any
time you desire and SHOW you a barrel roll with a 90 degree change of
heading at the inverted point........an 80 degree change of heading at
the inverted point......a 70 degree change of heading at the inverted
point....and so on, right down to the maximum helical arc the Decathlon
is capable of managing. YOU of course can pay for the flight :-)
I of course will buy the drinks :-)))
Dudley Henriques

writes:

There are times when the moon is accelerating away from the sun.

When?

That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have to
ask the little boys who run it.

"Mxsmanic" wrote in message
...
writes:

There are times when the moon is accelerating away from the sun.

When?

Quite frequently, actually.


That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Right here on the whiteboard. Hop a flight and come look at it.


Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have
to
ask the little boys who run it.

REAL AIRPLANE. She's in.

You may wish -- not that'd you do it, of course -- to look at any
basic physics text, or even a math text. Acceleration is discussed in
lots of places. You are confused by velocity and acceleration, but
then again you seem to be confused by lots of things.

I'd suggest you see a psychologist, but not this one, even though you
might be an interesting study. I work with kids at risk, might have
helped you 30 some years ago.

But probably not.







On Jun 18, 3:12 pm, Mxsmanic wrote:
writes:
There are times when the moon is accelerating away from the sun.

When?

That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have to
ask the little boys who run it.

On Jun 18, 9:12 pm, Mxsmanic wrote:
writes:
There are times when the moon is accelerating away from the sun.

When?

That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have to
ask the little boys who run it.



She can fly. she's approved.

You can't even find tthe lader to theh treehouse, you're not.


Fjukkwit.

Bertie

El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.

"Mxsmanic" wrote in message
...
El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.

I did. Come take a look.

Mx does not know that acceleration is dv/dt, he thinks so long as v
doesn't change its sign in whatever coordinate system (I think that's
the right phrase) acceleration doesn't, either.

If he ever took math in school, he probably failed it as badly as he
did social science. "Does not play well with others" comes to mind as
something that would appear in his record.

He writes well enough, though.

Oh well, I'm off to deal with some people I can actually help.





On Jun 19, 5:51 am, "El Maximo" wrote:
"Mxsmanic" wrote in message

...

El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.

I did. Come take a look.

wrote in message
oups.com...

If he ever took math in school, he probably failed it as badly as he
did social science.

I'd love to see him on "Are you smarter than a fifth grader?", arguing that
he's right.