Amiot 340

The Amiot 340 was a three-seated double-engined bomber that was based on the Amiot 341 mail plane. The prototype took part in a flight to Berlin in August 1938 to make Germany think that France had already modern bombers. It made its maiden flight on 6th December 1937 and was powered by two 920hp Gnome-Rhône 14P air-cooled radial engines. One-hundred thirty machines were ordered, but due to modifications in the orders, September 1939 arrived and not a single aircraft had been delivered. As the French Armée de l'Air (French Air Force) urgently needed a modern bomber, the prototype was sent back to Amiot's main factory in order to be modified into the Amiot 351, which was the basis for the Amiot 354.

Sources:
1. https://en.wikipedia.org/wiki/Amiot_354
2. https://fr.wikipedia.org/wiki/Amiot_354 (translated)
3. http://www.historyofwar.org/articles/weapons_amiot_340.html
4. Signal Squadron - Aircraft In action  - French Bombers of World War II in Action