Breguet 410 series bomber project

Hi!
Breguet 410 and 411 bomber project report by NACA.

https://digital.library.unt.edu/ark:/67531/metadc64772/m1/17/

Hi!

Re: Breguet 410 series fighter project

https://en.wikipedia.org/wiki/Breguet_410
"The Breguet 410 was a French bomber of the early 1930s. Not many of these twin-engined sesquiwing biplanes were built. At least one Breguet 413, one of its variants, was sold to the Spanish Republican Air Force during the Spanish Civil War."

"Bre 410 M4 : Light bomber with two HS12Nb engines (1931)
Bre 411 M5 : Light bomber with two HS12Nb engines, (1932 - one built).
Bre 413 : Light bomber with two HS12Ybrs engines (1933)
Bre 413 M4 : Light bomber with two HS12Ybrs engines
Bre 414 : Light bomber with two GR14Kirs radial engines (1933).
Bre 420 : An improved 414 with modified rear fuselage and tail section."

Bre 410
http://www.airwar.ru/enc/bww1/br410.html
Bre 413
http://www.airwar.ru/enc/bww1/br413.html
Bre 414
http://www.airwar.ru/enc/bww1/br414.html
Bre 420
http://www.airwar.ru/enc/bww1/br420.html