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
|
|