Thank you for your comment. I see, the pitch is quite large. Thank you for your advice. I haven't flown in about 5 years. Next time I fly, I'll tell my father, "I got advice from a RU-vid comment." The aviation law revision and the monthly payment for the radio control club are strict, and when I comment back, "I'm paying money, so it's a waste, so I have to go!", I (the son) have various sensory sensitivities, and I ended up arguing with my father, so I quit the club to prioritize my health. These days, I fly a small one-cell helicopter in fallow rice fields and parks after making sure there are no people around.