100 mpg available to the government

- wonder if/when it will hit the public? Achates (a San Diego company) has created a revolutionary new/old engine design - 2 pistons per cylinder that is estimated to be capable of 100 mpg!!! In the 1930s some aircraft engines used this design, but they disappeared. Now they are back using diesel and 2 stroke technology. The 2 cylinders collide into each other, and at the very last moment the fuel fires and pushes the 2 cylinders back apart.

Instead of conventional intake/exhaust valve technology, they are using 2 stroke technology which is simple port holes cut into the cylinder walls, as the piston slides up/down, certain ports are uncovered allowing air to pass thru the port - this greatly reduces moving parts and mass (theres no cylinder head), and increases the amount of power output per cylinder movement using a much smaller lighter engine.

See the video here: http://www.achatespower.com/opposedpiston.php

Now - by doubling up the pistons per cylinder with 2 stroke technology we achieve 4 times the power per firing sequence of a conventional engine.

I wonder if/when this will hit the public, or do they call it "classified" - Achates' A40 prototype has been used by the government since 2009, they have built a vehicle using the 1 cylinder 2 piston motor, probably one of those un-manned recon-rovers, and still we hear very little about it.

Here is a detailed document on the A40:
www.achatespower.com/pdf/2011_SRM_Winter2011.pdf