Aspen Avionics, Albuquerque, N.M., unveiled its Evolution Flight Display system, a system it calls the most innovative and affordable glass cockpit system for general aviation aircraft. The company, which introduced the system at last week’s Experimental Aviation Association convention in Oshkosh, Wis., said the system is modular, expandable and upgradeable. At the show, the company said it received more than $1.5 million in new orders for the system during the first week it was available for sale. The company said the system, which has three models of Primary Flight Display and two models of Multi-Function Display, enables aircraft owners to upgrade their primary flight instrument “six pack” to glass cockpit technology all at once, or in stages. The first two models in the Evolution system — the EFD1000 Pilot Primary Flight Display and EFD1000 Pro Primary Flight Display — will be certified in Fall 2007, the company said.