## 3 Calculation Results and Discussion
### Discussion  
The obtained results provide a unique perspective on aircraft SOFC/GT hybrid power systems by examining the impact of variable parameters on both electric generation and thrust generation aspects. Figures 18 and 19 presents a comparative analysis of performance parameter responses for each variable parameter. The critical performance parameters considered include electric power generated, electric efficiency, SOFC fuel utilization, SOFC temperature, TSFC, GT overall efficiency, and thrust. This comprehensive analysis enables a thorough understanding of the crucial parameters for system development. The findings from the table indicate that the AS-ratio has a significant influence on both electric power and thrust generation.  
On the other hand, variations in CPOx and SOFC fuel utilization mainly affect the electric generation capabilities of the system, as evidenced by the percentage change in performance parameters. Notably, the results highlight that the AS-ratio plays the most substantial role in the system and should be optimally selected to ensure optimal performance of the overall hybrid system. A variable AS-reformer yields a 100% change in SOFC power, electric efficiency and fuel utilization. This essentially means that SOFC breaks down when the AS-reformer is not optimally selected. The AS-cathode and AS-combustor also yield high changes in performance parameters compared with O/C ratio and SOFC FU.  
Before conducting this study, the assessment of system response to selected variable parameters was lacking, creating a gap in our understanding of system behavior and flexibility. Previous studies did not recognize the AS-ratio as a crucial parameter that significantly influences system performance. This novel finding contributes significantly to our understanding of the system, particularly in the context of aircraft applications.  
\begin{table}
\begin{tabular}{c c} \hline
**Design Point AS-Ratio** & **0.00475:0.84532:0.15** \\ \hline AS-combustor 1 & 0.0053:0.9447:0.0500 \\ AS-combustor 2 & 0.0042:0.7458:0.2500 \\ AS-combustor 3 & 0.0036:0.6464:0.3500 \\ AS-combustor 4 & 0.0031:0.5469:0.4500 \\ AS-combustor 5 & 0.0020:0.3480:0.6500 \\ AS-combustor 6 & 0.0017:0.2983:0.7000 \\ \hline \end{tabular}
\end{table}
Table 8: AS-combustor variations.  
Figure 19: Comparative graphs of thrust generation capabilities of GT by % change (%\(\Delta\)) in GT performance parameters.  
Figure 18: Comparative graphs of system response by % change (%\(\Delta\)) in performance parameter.  
As the system is intended for dynamic environments, future SOFC/GT hybrid system designs will require the implementation of control systems. Without a thorough understanding of the sensitive parameters and their impact on system performance, the tuning and implementation of control systems could become more challenging. The results of this study shed light on the influence of various parameters and system responses, offering important insights for the future implementation of control systems.  
This study also highlights a parameter that has not been extensively assessed in previous studies--the AS-ratio--and measures its effect on the hybrid system. Additionally, given the unique configuration being explored for application, the performance of this system in comparison to conventional SOFC/GT hybrid system configurations falls beyond the scope of this investigation, yet remains a valuable avenue for further exploration and understanding.