If there were any doubt as to the quality of Flight Simulator II, it should be dispelled by the knowledge that SubLOGIC went to the FAA for approval of its use in flight training. Whether or not they actually got the approval—remember this was 1983, and such application of personal computers was new ground—they attempted to create a realistic flight simulator.
This flight simulator simulates a real aircraft, the Piper PA-23-181 Archer II. For those with the knowledge, it offers practice with the variables of flight, including the avionics. The Atari ST-release (1986), instead, simulates the Cessna 182 single engine propeller aircraft and the Gates Learjet 25G twin engine jet.
The simulator was considered to be a second generation product. It had many more features than first generation flight simulators, and pilots were expected to pay attention to small details. SubLOGIC encouraged the users of the game to go to flight stores and purchase flight-training manuals and aeronautical charts to help them understand the variables within the program. The game was oriented toward pilots-in-training, but there were options for non pilots too: the company included an easy mode, and a slightly more detailed reality mode. These modes did not require the same level of knowledge.
Flight Simulator II was also packaged with a WWI dogfighting game, called WWI Ace. In this game your plane is armed with bombs, machine guns, and a radar screen. The radar screen is anachronistic for a game set in World War I, but it is there to help gameplay.