That individual in the cockpit jumpseat may have been a qualified pilot for one of the air carriers planning on purchasing the SU-100. I know in the past I have sat jumpseat on demonstration flights, the company wants a pilot up front to ask questions pertinent to line operations and would know what to look for as far as performance. Last i checked this was considered perfectly legal and within the guidelines of most manufacturer's policies; though my knowledge on this matter only really applies to the US and Canada.
Last edited by Island-Flyer; 13th Jun 2012 at 01:49.