Helmut Schelp was the director of advanced engine development at the RLM's T-Amt technical division leading up to and during World War II.
Following in Frank Whittle's footsteps of a few years earlier, Schelp became interested in the problems of high-speed flight, and attempted to calculate the maximum speed an aircraft could obtain.
Mauch and Schelp did meet with most of the larger engine companies, notably BMW, Bramo, Jumo and Daimler-Benz, none of whom proved to be terribly interested, mostly because they were in the midst of bringing new piston designs into production.
This program was directly opposed by Wolfram Eisenlohr, director of LC8 (now known as GL/C3 after yet another re-org), who felt that a longer term project was needed to develop such a new concept.
Schelp also used his influence to force Heinkel to develop one of his pet projects, the "diagonal compressor", a sort of combination of the centrifugal and axial designs.
Schelp demanded that the HeS 011 use this design, which proved to be much more difficult to build than originally thought, and led to lengthy delays in that project.