anyone interested in high-res performance charts?

I'm in the process of vectorizing all the charts in the PA-28-161
Warrior III POH. I am mostly doing it to make it easier on me and my
students when reading them. The takeoff roll charts you almost need a
microscope to get an accurate reading, the lines are so close together.
I plan on doing all the ones in my Warrior III POH, then I'll plan on
doing the PA-34-200T manual I have, then hopefully if I can get my
hands on one, I'll do a Baron 55.

Anyways, is anyone else interested in these charts? Is there any other
service out there that does the same thing I'm doing? Here are a couple
examples of what I have so far:

http://isodrosotherm.info/5-19.pdf
http://isodrosotherm.info/6-13.pdf

If anyone has a POH with hard to read charts, and they'd like me to
vectorize them, fell free to contact me with some scans.

The charts look very nice. Do you reenter them? They are too good to
have been scanned in. I'm always interested in the Warrior II and
C-172. W&B charts are most important. Thanks.

buttman wrote:
I'm in the process of vectorizing all the charts in the PA-28-161
Warrior III POH. I am mostly doing it to make it easier on me and my
students when reading them. The takeoff roll charts you almost need a
microscope to get an accurate reading, the lines are so close together.
I plan on doing all the ones in my Warrior III POH, then I'll plan on
doing the PA-34-200T manual I have, then hopefully if I can get my
hands on one, I'll do a Baron 55.

Anyways, is anyone else interested in these charts? Is there any other
service out there that does the same thing I'm doing? Here are a couple
examples of what I have so far:

http://isodrosotherm.info/5-19.pdf
http://isodrosotherm.info/6-13.pdf

If anyone has a POH with hard to read charts, and they'd like me to
vectorize them, fell free to contact me with some scans.

"Stubby" wrote in message
...
The charts look very nice. Do you reenter them? They are too good to
have been scanned in. I'm always interested in the Warrior II and C-172.
W&B charts are most important. Thanks.

"Vectorizing" means that he is taking the original charts and essentially
redrawing them, using a vector-based description (that is, rather than
drawing the charts in a manner similar to painting or printing, the charts
are described as lines from one point to another).

Google "raster versus vector" for more info. The bottom line is that the
resolution of the displayed chart is matched to whatever medium they are
being displayed on. Only the endpoints of each line used to describe the
chart are stored (ie vector data), and during display the actual raster data
required to show the charts on the chosen medium (computer screen, printed
page, etc) is derived from that vector data to match the resolution of the
raster device being used.

So, yes...they are necessarily "reentered" and not scanned (that is, they
may have been scanned as part of the vectorization process, but the end
result you're seeing is not the scan itself).

Pete

You can work from FAA data, it is public. But you can't
legally copy a manufacturers pages, that is copyrighted.
Also be sure you put make/model and serial number ranges on
the product. Remember you to can be sued if somebody uses
your product and is injured. Talk to your lawyer and
insurance man.

That said, those charts are for speed and convenience, they
are created from mathematical data points by teams of
engineers. That's why you see terms such as "straight line
variation between point" on so many charts.

Even more than that said; as the end user you can scan at
1200 dpi, the charts from you own airplane and they will
print out very big and easy to read.

Good luck, BTW, when I use a performance chart, I always
take the least favorable number if it is too close to call.



"Peter Duniho" wrote in
message ...
| "Stubby" wrote in
message
| ...
| The charts look very nice. Do you reenter them? They
are too good to
| have been scanned in. I'm always interested in the
Warrior II and C-172.
| W&B charts are most important. Thanks.
|
| "Vectorizing" means that he is taking the original charts
and essentially
| redrawing them, using a vector-based description (that is,
rather than
| drawing the charts in a manner similar to painting or
printing, the charts
| are described as lines from one point to another).
|
| Google "raster versus vector" for more info. The bottom
line is that the
| resolution of the displayed chart is matched to whatever
medium they are
| being displayed on. Only the endpoints of each line used
to describe the
| chart are stored (ie vector data), and during display the
actual raster data
| required to show the charts on the chosen medium (computer
screen, printed
| page, etc) is derived from that vector data to match the
resolution of the
| raster device being used.
|
| So, yes...they are necessarily "reentered" and not scanned
(that is, they
| may have been scanned as part of the vectorization
process, but the end
| result you're seeing is not the scan itself).
|
| Pete
|
|

Jim Macklin wrote:
You can work from FAA data, it is public. But you can't
legally copy a manufacturers pages, that is copyrighted.
Also be sure you put make/model and serial number ranges on
the product. Remember you to can be sued if somebody uses
your product and is injured. Talk to your lawyer and
insurance man.

That said, those charts are for speed and convenience, they
are created from mathematical data points by teams of
engineers. That's why you see terms such as "straight line
variation between point" on so many charts.

Even more than that said; as the end user you can scan at
1200 dpi, the charts from you own airplane and they will
print out very big and easy to read.

Good luck, BTW, when I use a performance chart, I always
take the least favorable number if it is too close to call.

Oh, I'm not planning on selling these. They take maybe 1 hour each to
do. I was just planning on putting them up on my website for all to use.

Still you'll be advise to have a prominent disclaimer, even
if your rendition is perfect, you could be sued.



"buttman" wrote in message
oups.com...
|
| Jim Macklin wrote:
| You can work from FAA data, it is public. But you can't
| legally copy a manufacturers pages, that is copyrighted.
| Also be sure you put make/model and serial number ranges
on
| the product. Remember you to can be sued if somebody
uses
| your product and is injured. Talk to your lawyer and
| insurance man.
|
| That said, those charts are for speed and convenience,
they
| are created from mathematical data points by teams of
| engineers. That's why you see terms such as "straight
line
| variation between point" on so many charts.
|
| Even more than that said; as the end user you can scan
at
| 1200 dpi, the charts from you own airplane and they will
| print out very big and easy to read.
|
| Good luck, BTW, when I use a performance chart, I
always
| take the least favorable number if it is too close to
call.
|
| Oh, I'm not planning on selling these. They take maybe 1
hour each to
| do. I was just planning on putting them up on my website
for all to use.
|

Oh, I'm not planning on selling these. They take maybe 1 hour each to
do. I was just planning on putting them up on my website for all to use.

What software/hardware do you use to vectorize the images?

buttman wrote:


Oh, I'm not planning on selling these. They take maybe 1 hour each to
do. I was just planning on putting them up on my website for all to use.


Selling isn't an issue. Copying is.

buttman wrote:
Jim Macklin wrote:
You can work from FAA data, it is public. But you can't
legally copy a manufacturers pages, that is copyrighted.
Also be sure you put make/model and serial number ranges on
the product. Remember you to can be sued if somebody uses
your product and is injured. Talk to your lawyer and
insurance man.

That said, those charts are for speed and convenience, they
are created from mathematical data points by teams of
engineers. That's why you see terms such as "straight line
variation between point" on so many charts.

Even more than that said; as the end user you can scan at
1200 dpi, the charts from you own airplane and they will
print out very big and easy to read.

Good luck, BTW, when I use a performance chart, I always
take the least favorable number if it is too close to call.

Oh, I'm not planning on selling these. They take maybe 1 hour each to
do. I was just planning on putting them up on my website for all to use.


Selling your reproductions insn't the point. Copying them is.

You are infringing on the copyright of the copyright owner as soon as
you reproduce them by any means. I don't believe you can dance around
the issue by refering to the means by which the copies were made.

Making the reproductions public is a worse offence, as you become more
visibly subject to legal action for damages and or loss of income.

The only exception is for product review, a principle which is called
"fair-comment" and allows limited reproduction of copyright material
for the purpose of reviewing the work in question ... typically in the
media. Fair-comment wouldn't apply in your case.

I would't even want to speculate about the liability that you would be
exposing yourself to by proposing that people use your reproductions.
You could make an error, after all.

I suggest you contact the aircraft manufacturer and try to get
permission from them, or try to sell your charts to them.

Otherwise ... keep 'em to yourself. And as you know, technically it's
not legal to use anything other than the actual POH of the aircraft in
its operation.

I came by some of this knowledge the hard way - I had to hire a
copyright and intellectual property attorney to pursue a (bad) client
that illegally used one of my photographs for profit to promote a
professional trade conference. I learned a lot in the process about
copyright and misappropriation of personality and/or image (the model
in the photograph hadn't released the rights to reproduce her image
either to promote the trade show).

Best of luck

PPL-A (Canada)