With something like this there are two main priorities:

1/... Developing a system that meets customer needs, and pushes to the edges of the design inference space with regard to same.
2/... Making it available at a reasonable cost.

Right now we are focused on priority #1. Our efforts are directed towards developing a system that takes full advantage of the the Contra Rotating Propeller Concept. We figure that if we don't succeed in this, then someone else will come in and do it in our place.

If we can achieve success with priority #1, then we can focus on cost. However, right now cost is highly dependent on production volume, because in small batch sizes of fifty or so most of the cost goes into CNC setup, and manufacturing burden. As the volumes get higher then material cost and CNC machine time will become more significant, and we can address these costs with better sourcing, and creative manufacturing process development. Investment in tooling helps here as well.

Brenner ...