VERSION 1.5 - NOW WITH GMAP SUPPORT! EFB2004 (Electronic Flight Bag for FS2004) is a software-based display system intended primarily for the simulated cockpit or flight deck. It virtually does away with the need for paper charts and other physical copies of documents such as aircraft operating manuals, performance data, approach charts and checklists.
In real world aviation EFB devices usually consist of software and hardware (hand-held tablet PC or integrated display). They can display a variety of aviation functions that in the past were traditionally accomplished using paper references. EFB systems may be approved to replace some of the bulky hard copy material that pilots typically carry in their flight bags. They can be found in everything from light single-engine props to multi-engine jet airliners.