The Riffard RM-1 RDP rocket biplane

"The RM-1 was a project of 1917 for an interceptor powered by a crown of 48 solid fuel rockets proposed by Marcel Riffard and Gabriel Mollard. The RDP stands for "direct response powder". The airplane was destroyer because it was armed with a 150mm torpedo in the nose, also rocket propelled. The airplane foreshadows exactly the interceptor of "one shot" SNCASO Sud Ouest SO-9000 Trident fourty years later."

(Source: http://modelarchives.free.fr/Bestiaire/index.html)

 

 

 

Riffard RM-1 RDP rocket biplane 1917 (rocket engined and enclosed flight deck)