Exploiting Rubber Bands for Submarine Propulsion
In an intriguing twist of engineering, a rubber band powered submarine has been the subject of a recent project. This unique submersible, designed by PeterSripol, is not the first rubber-band-powered vehicle to capture our imagination; in fact, it follows a long line of such inventions.
The inventor of this particular elastically driven submarine is George William Garrett. However, the device's greatest challenge has been its active depth control system. Initially, a float was used to deflect the fins when a certain depth was reached, but it proved ineffective. A float may not be the most suitable solution for a submarine, especially one propelled by rubber bands.
The submarine's depth control system was problematic, leading to the need for a more reliable solution. A second version of the rubber band powered submarine was implemented, using a gearbox and three rubber band inputs. This version aimed to address the depth control issues, but it too faced difficulties.
The electronic depth control system, while technically still rubber band powered, was problematic and led to the need for a float and eventually electronic control. This electronic system, despite its initial problems, was intended to provide a more precise and stable depth control. Unfortunately, the implementation of this system was followed by an electronic failure during the final wild test of the submarine.
Despite this setback, the project was still considered a fun exploration of using elastic to power a submersible. The submarine is slightly negatively buoyant, meaning it returns to the surface when the power runs out. When the rubber band power runs out, the fins return to their natural pitch up position, encouraging surfacing of the submarine.
The second version of the submarine provides approximately 10 minutes of run time for the submarine. This project, despite its failure in the final wild test, offers a unique perspective on the potential of using elastic to power vehicles. It serves as a reminder that innovation often comes with challenges, but the journey is always worth the exploration.
As for the rubber band powered submarine, it may not be the spirit of a traditional rubber band powered vehicle, but it certainly adds a new dimension to the concept. For those interested in unusual rubber band powered vehicles, the rubber band powered airplane is worth a look!
