Oh my, did you make the design of it by yourself? How long did it take? And I wonder how much did it cost? I once made a model airplane, the design was from scratch my design, it also had a retractable landing gear, I was looking for the project pictures to post them here. Sadly, couldn’t find any of it. I am asking my team mates who help me do the simulations if they have any pictures of it. I would like to show it to you all. It took 3 of us 8 months or so to build the whole thing, including the conceptual design and everything. Including ordering materials from ali express and waiting months for it to get delivered. But it was really worth it. it costed us each about 200 euros over the 8 months to completely build the airplane. It was cheap because we got a lot of the things from engineering labs and never gave them back. Things like Arduinos, RC and a lot of glue.