From Scrap Yard to Saucer Hull
Vietnamese inventor Tran Long Ho, known through the YouTube channel Mr Ho Thanh Che, has built a fully functional, motorized UFO-shaped boat from scratch and successfully tested it on a local river, combining raw scrap metal, fiberglass molding, and imaginative design into a viral watercraft.
While pop culture is filled with science-fiction depictions of flying saucers zipping through the skies, translating those iconic circular shapes into viable aquatic engineering is a rare feat. According to coverage from My Modern Met, Mr Ho Thanh Che spent countless hours designing, constructing, and testing the unconventional vessel, documenting the ambitious engineering journey in an hour-long video that has captivated online audiences.
Tracing Geometry on the Floor
The manufacturing process began on solid ground with a remarkably low-tech approach. The inventor traced the simple circular geometry of a classic flying saucer base directly onto the floor before gathering components from a large metal scrap pile. By welding these pieces together, he created a robust structural arm to shape the frame.
Sand Molds and Fiberglass Shells
One of the most striking engineering choices involved the primary body construction. Ho and his team utilized ordinary sand mixed with cement to harden the main skeleton and sculpt a precise mold. Over this foundation, they layered fiberglass to form the sleek, otherworldly outer shell of the saucer.
Hexagonal Windows and Solar Power
Despite relying on terrestrial and industrial materials, the completed craft mimics an unidentified flying object that has dropped out of orbit. Structural integrity is maintained through heavy-duty steel frames securing the body, while the cabin incorporates custom hexagonal wooden cutouts for insulation. Acrylic-covered hexagonal windows, integrated solar panels, and internal LED illumination complete the aesthetic, all managed from a central board of controls.
Hydrodynamic Stability on the River
After completing the fabrication phase, the inventor put the unorthodox watercraft to the ultimate test. Speeding dynamically down a local river, the UFO jet boat proved its propulsion and hydrodynamic stability.

According to My Modern Met, the cockpit interior remains remarkably cramped, yet the layout demonstrates meticulous planning and design efficiency.
The 30-Second Verdict
The Mr Ho Thanh Che UFO jet boat bridges the gap between science-fiction imagination and practical garage fabrication. By transforming basic cement, sand, scrap metal, and fiberglass into a motorized rivercraft, the project demonstrates that traditional maritime architecture can successfully embrace unconventional, sci-fi-inspired geometry.