448

This is still a conservative estimate.

Therefore, the steps for strict design verification are indispensable. The Aviation Group and the technology department must ensure that the design is correct before they can proceed with a substantial amount of evaluation.

For example, verifying the overall weight of the engine.

Performance.

Manufacturing technology requirements.

And so on.

These are not just the design of Group Two anymore, but also involve considering the technology of the cooperating factories and require the cooperation of the aviation materials department, because the materials for many engines may not meet the standards, and in Group Two's design, there is not much detailed discourse on the materials for various parts.

Only after a definite feasibility analysis report is issued can the Aviation Group decide to allocate funds to manufacture prototypes.