Type Project for a high altitude research aircraft
Engine 1 Bristil Jupiter
Dimensions Length  , height  ,  span  , wing area   ,
Weights Empty , loaded  , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb
The Raab-Katzenstein RK 13 was, along with the single-seater fighter RaKa RK4 and the advanced training aircraft RaKa Rk 28, one of a group of three designs that Paul Hall had originally intended for military purposes at the Raab-Katzenstein works between 1926 and 1929. As in the case of the other two developments, the RK 13 was equipped with a powerful 585 hp Bristol Jupiter engine[. As a civilian derivative of the single-seater fighter RK 4, the single-seater RK 13 was intended to be used as an experimental aircraft for high-altitude flights. The development was abandoned at the design stage in 1928.