[2] Construction involved a simple but highly ingenious method of using round section thin gauge steel tubing throughout the structure with a fabric covering.

[3] Powered by a neatly cowled six-cylinder inline 160 hp Napier Javelin engine driving a fixed-pitch wooden propeller, the tubular mounting was designed so that all parts were accessible for easy servicing and was electrically started.

Martin believed that simplicity would lead to efficiency and took care to eliminate complicated operations, with the result that the prototype was rapidly put together by a small group of 12 semi-skilled workers.

[3] Although the main interest of this aircraft was in its design, a contemporary aeronautical journal reported: "The seats are comfortable and the cockpit is totally enclosed with an oval transparent hood.

The windscreen is a sharp vee, with vertical front panes, which should not collect fine rain or snow and should obviate any reflection from internal or external lighting.