I'm sorry I didn't understand: what
designation do you mean now?[/quote]
The confusion arose because I deleted my post (the problems of translation), frankly I do not think that it will have time to someone read, the more to answer. ))
Alex, the draft single-engine high-wing reco the competition "Ivanov" with signature "NR"/"HP"-rus. has no relation to the program - "BS" Средний бомбардировщик
- medium bomber, which was a twin-engine DG-57.
In the article "Unknown Grigorovich" - m-n "Airplanes of the world" 2 / 2000 are 3-views is the DG-57 (although does not mention this designation)
Definitely bad news (especially for russian-speaking readers) published a book about Grigorovich fault publisher delayed ...
Good news: with the kind permission of the author Mikhail Maslov few quotations from the forthcoming book.
Now, on the add-up: a twin-engine 'Military-passenger airplane' - (DG-57
Wingspan (m) 22,5
The length of the line of flight (m) 14,5
Wing Area (m2) 75,0
Empty Weight (kg) 3350
Flying weight (kg) 5880
Bombs (kg) 900
Maximum speed (km / h) 410
"In late 1936 Grigorovich was working on a draft medium bomber - Средний бомбардировщикBS
with two engines of the Gnome-Rhone K-14 (M-85) rated at 800 hp The crew of 4 people. Inside the fuselage provided for the suspension of 900 kg bombs. A further 400 kg of bombs into overdrive suspended under the wings. By calculating the maximum speed should be 410 km / h. The project is not implemented due to lack of industrial base. Almost simultaneously, based on the bomber's intention was to create 10-12 seats passenger plane."
Additional information from the article "Unknown Grigorovich", - Roman Grigorovich, Vladimir Ivanov
.- "Airplanes of the world" 2 / 2000
"...parallel with this project Grigorovich created another version of a passenger aircraft with a "clean" wing. Reviewed machine different from the above that at constant geometrical dimensions on it, instead of air-cooled engines in the wing, two engines to be installed AM-34 liquid-cooled in the fuselage - one after another. Two coaxial rotor set in motion through a system of gears and transmissions. To place motors moved the cockpit back to 1,5 meters. "