I've written this manual to give the technical community a guide with which to work in their engineering analysis and design of the engines.

To that end, the solutions of the engine design problems are rigorously handled in great detail.

[While doing the] engineering, you might want to add a few more terms to the various expansions used in the manual.

With the manual, designers, using their preferred computer tools, should be able to investigate the FRE [Frasca Rotary Engine] operating characteristics to their own satisfaction.

This manual is also intended for people with a technical background but no direct design experience in the engine or pump fields.

It is also written for the technically oriented students, and the technically competent curious.

Therefore, each section of the manual, which requires in the reader a solid understanding of the underlying scientific and engineering relationships used in its discussion, includes a short, reasonably thorough, review of the cogent technical background material.

These reviews are included to reacquaint the reader with material they've likely seen before albeit as part of their remote past studies and for students and others who may or may not otherwise be familiar with the material; e.g. thermodynamics, gas transport, combustion processes, hydrodynamics.