Evolved from the popular 604 model, the 605 entered service in 2007. It uses the same wing and engines as the 604, and preserves the spacious stand-up cabin while updating it with new amenities. Higher, larger windows enhance the views. More lighting, an Ethernet-based audiovisual system, and larger video monitors encourage productivity. Design tweaks provide an extra 200 pounds of payload, plus better fuel economy, compared to the 604. The flight deck features Rockwell Collins Pro Line 21 avionics, with an optional enhanced-vision system that helps the crew operate safely on the airfield even in low visibility or darkness.