The last delivery of a -200 series aircraft was in August 1988 .
Although this prototype served as the basis for the series aircraft, further modifications were made to the armament.
Fewer than 250 Breguet 690 series aircraft were completed.
It reorganized and currently flies a modern fleet of Boeing 737-800 series aircraft.
The project failed to move forward, however, and the subsequent series aircraft were not built.
Testing continued until October, at which point some of the additional zero series aircraft had arrived.
These early series aircraft were initially armed with four 7.92mm vz.28 guns.
This was tested on a small number of the early series aircraft, although certainly not a standard fit.
A total of 694 of the 747-400 series aircraft were delivered.
As increasing numbers of "classic" 747-100 and 747-200 series aircraft have been retired, some have found their way into museums or other uses.