Work on the third helicopter, the RIII did not reach the construction stage as Walter Rieseler died in January 1938 at the age of 47 of an heart attack. Consequently, no further work was done on the RIII and the work of Walter Rieseler passed into obscurity.
Type
Engine
Dimensions Length  , height  ,  span  , wing area   ,
Weights Empty , loaded  , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb