Last year the company said it was expecting to commercially release its First Responder Jetpack - developed for police, search and rescue and other government uses - during the latter part of 2013, while a slightly modified version, the Personal Martin Jetpack, would be released in 2015 and "transform the future of personal flight".
See Martin supplied video "Martin Jetpack 'quantum leap over previous model':
Herald app users tap here to view the video.
Peter Coker, a former Royal Air Force pilot and international aviation expert, was appointed chief executive of the firm last year.
The Martin Jetpack has been developed over more than three decades by Glenn Martin. Despite its name it is propeller - rather than jet - powered.