In article ,
Jim Logajan wrote:

"Stuart & Kathryn Fields" wrote:
Here is an interesting link
http://rareaircraf1.greyfalcon.us/UNITED%20STATES.htm

Impressive set of photos! The B-17 with the single engine turboprop seems
IMHO to really accentuate the B-17's wings. More so than usual, that is.

There is some question as to whether the photo was airbrushed, or not.

The same engine appears in other pictures of a B-17 testbed, but they
all have the normal 4 radials on the wings.

See especially Curtis 24-B and Curtis-Wright XP-55 Ascender. Did Burt
Rutan know about these?

Well ... they weren't amateur built.

And there were even earlier canard experiments dating back at least to
the WW1 period.