This parabolic trough with a steel pipe at the optimal focal length is charged by placing the trough angled to the sun for 3-5 minutes. The valve system on the rear of the cannon allows for regulated suspended volumes of water and air injection. The water mist flashes to steam adding additional thrust to larger projectiles and tighter wadding. The build for this will be available in a week or two.
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This is the trough mirror and a Fresnel Lens set. The water was sprayed in with a regular garden hose to produce flash steam. Steel ball bearings were used as ammo. A few modifications from this learning experience and we can now launch 200 yards.
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