Talk:Tuning/@comment-5218545-20160514142250/@comment-26341407-20160515214826

This is for every aircraft. lv.1-5 max of 38, lv.6-14 max of 40, lv.15-19 max of 41, and lv.20 max of 42 slots. Let me give you very different examples: a lv.20 F-16C can have 42 slots (that is, if you can manage to get that many extra part slots), while a lv.4 GAF-1 -Sulejmani- can have only 38 slots (curiously, this is a plane that you can't get any extra slots, since it's already maxed out). In your case, you've already maxed out your Pixy Morgan, so the only way to get past 40 slots is by upgrading it to lv.15 for 41 slots, and then to lv.20 for 42 slots.