I have completed the research on hybrid-planes. Through reliable primary data sources, I now know how the engine of a hybrid-plane differs from that of a normal plane, while also being able to distinguish and predict the different markets in the aviation industry. However, I found myself being less technical in the physics point of view. So, my supervisor told, with the primary data I have, I can ‘show off’ the physics part of it, using abundant technical terms. I also found myself not fully explaining the negative externality graphs, where my supervisor told me I missed out on a few terms. I realised how my citations for the appendix were not in the correct format, so my supervisor had mentioned to me, to keep all the citations in the same format. Finally, my supervisor had also told me to create a better flow for the introduction, as I moved from one idea to another with no proper connection.