Diagonal or mixed-flow compressors are similar to centrifugal compressors, but have a radial and axial velocity component at the exit from the rotor.

This differs from other rotating compressors such as centrifugal compressors, axi-centrifugal compressors and mixed-flow compressors where the fluid flow will include a "radial component" through the compressor.

Next summer, though, all thoughts of inlet particle separators and mixed-flow compressors will be put to one side, as Godfrey spearheads Britain’s attempt to win its first male archery medal for two decades.

Schelp was also interested in seeing one of his own pet projects, the diagonal compressor, adopted.

The diagonal compressor has a lower diameter diffuser than the equivalent centrifugal compressor.

Diagonal compressors were widely experimented with during and just after World War II, but did not see much service use.

A mixed flow compressor, or diagonal compressor, combines axial and radial components to produce a diagonal airflow compressor stage.

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.