Hi all,
As of today Johan has approved our suggestions for changing the definition of baddouble. Here is (changes are in red) the final result.
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BADDOUBLE
These photos have already been added to the database or you have
uploaded other photos that look very much like these. Please read more
on this issue in the Upload-FAQ.

Notes:
- You could also get rejection message if there are photos very similar
to these that have passed the first screening and are waiting for the
second, final, screening. Also, generally if you submit a number shots of
an aircraft taken at the same time, only the best 1 or 2 will be selected
and rest may have been rejected as doubles. You can better control
which ones we accept by only uploading the 1 or 2 best shots from a
sequence of photographs of the same aircraft.

- You can also get the rejection message if there are photos in the database very similar to the one(s) rejected here, but taken on another date by you.


Please check the database carefully for already existing photos of this aircraft
taken by you before uploading new photos and refrain from reuploading photos which where rejected with baddouble. Continous reuploading might result in a temporary ban from the site.