Yu Jung's Homemade Helicopter: Chasing the Mythical Wildman of Shen Nong Jia

Yu Jung, a 49-year-old with limited education, is building a homemade helicopter using recycled materials and an old car engine. Despite setbacks, including a failed balloon test that injured his brother, Yu remains determined to fly and search for the Wildman of Shen Nong Jia. His project, driven by passion, has already cost him around $10,000.

What is the weight of Yu Jung's homemade helicopter?

How much has Yu Jung spent on his helicopter project?