Project: Single-engined biplane passenger plane
- RK 11 : [??]
- RK 11a: Pilot under wing open cockpit, encl. cabin for 4 passengers
Type Project RK 11 RK 11a
Engine 1 Daimler
Dimensions Length  , height  ,  span  , wing area   ,
Weights Empty , loaded  , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb