Yetispace is a small mechanical and aerospace engineering company with expertise in propulsion and power systems as well as spacecraft and launch vehicle design. Yetispace is dedicated to competent engineering practice through fundamental analysis and carefully planned tests. Company practice is to produce the simplest analysis first, thus achieving a rapid understanding of the problem. Sensitivities to design variables are obvious through equation based analytical work. Yetispace provides a methodical engineering process and has collected the skills needed for direct analytical work. Similarly, the simplest experiment that increases understanding is done first. Traversing from the simplest to the most complex might involve cold-flow in air or water and a corresponding handwritten analysis prior to implementation of more complicated hardware and/or hot-fire testing. Frequently, non-dimensional similarity analysis can enable a straightforward experiment in support of analytical work. Yetispace has the discipline to perform to a statement of work as specified by its customer and produce functional products that meet requirements. This discipline is combined with a broad engineering background to allow Yetispace to be comfortable with the comprehensive engineering process – from initial assessment to final hardware delivery. Yetispace is staffed by people who are serious about the work they do and are dedicated to creating a mutually beneficial working relationship.