Tässä vielä auttamaan asian ymmärtämisessä, mistä kyse. 5 The External Store Classification System Since the number of external store combinations (even with a limited number of weapons) is very large, Saab has developed an external stores classification system with four different classes. Combinations within the same class are considered to have similar flight mechanical characteristics. The classification formula is based on mass, inertia and aerodynamic parameters and result in one longitudinal and one lateral value. These values are used in the graph shown in figure 4. The borders between each class are defined by a few extreme store configurations. By concentrating the testing on these, a limited number of stores could clear all store configurations within each class. A buildup towards critical configurations was made by first testing stores from class I and II and finally stores from class IV. The configurations used during the final MLL limit tests are shown in figure 4.