 The plan for the RP-218 called for a two-seat rocket powered plane, complete with a pressurized cabin, a retractable undercarriage, and equipment for high altitude research.The design was never realized, though, because at the time, there was not a rocket powerful enough and light enough to make the RP-218 practical.In September 1933, GIRD was combined with the Gas Dynamics Laboratory, and the conglomerate was named the RN II Rocket Scientific Research Institution.