• 
• 
• 

• 

• 

Unlike the P-2 category, the R-1 did not see serial production. The experiences of the Spanish Civil War showed that unarmed aircraft were easy prey for fighter aircraft. The R-1 was to be a form of long-range reconnaissance aircraft with two additional fuel tanks inside the aft fuselage of the bomb bay. There were two variants, the first (variant I) had a single Rb 50/30 and two Rb 20/30 cameras, while variant II had a third fuel cell to replace the rear Rb 20/30. The aircraft had a gross weight of 7,250 kg , but could be overloaded to 7,500 kg  in emergency situations. The crew was normally three, but a fourth was added depending on the missions. To achieve high performance at high altitudes two DB 600 Gs were to be used. The plants were tested on the 17RV1 prototype coded D-ABEE. The second, the R-2, coded D-ATJU, received the more powerful DB 601 Aa engines. Total 4 built