A "mathematical approach to maximize my out-put in disassembly of an aircraft," - i.e., minimize the time needed to disassemble the machine - could be found in a variety of ways - the key issue is defining the "critical path," that sequence of operations that paces the entire project. The helicopter can be disassembled in a finite number of sequences.
A spreadhseet that has "precident" and "subject" task indications can be set up to narrow the possibilities down. A "brute force" approach, by hand or using macros, can then be applied to find the minimum time. You may find that starting at the end and working forward will enable you to quickly identify the critical path...
MikeVV