The control panel layout in testing. 

Cabin interior during descent. 

The mirror effect from the surface shows the Fathom's hatch. 

A clear view on a calm day. 

Surface operation under power. 

Semi-submerged view close up. 

Safety Crew. 

Semi-submerged view from a distance. 

Trim adjustments. 

Fully submerged operation. 

Through the still waters of Kingsley Lake, the prototype is clearly visible with the hatch under two to three feet. 

The Fathom prototype on Kingsley Lake. 

Sunset on Kingsley Lake. 

Company founder Reynolds Marion. 

Moored for the night. 

The bow from above during the first full dive test. 

First full dive test - pilot Reynolds Marion. 

First full dive test - engineer Scott Shamblin. 

The hatch dips beneath the surface for the first time. 

The bow from below during the first full dive test. 

The Fathom prototype. 

The prototype's sleek bow in profile. 

The Fathom prototype ready for action. 

At home in the water as a storm rolls in. 

The build team onboard the Fathom. 

The Hyper-Sub prototype's pilot controls and instrumentation panel.