Tokyo craftspeople chase Olympic bobsleigh dreamーNHK WORLD-JAPAN NEWS

Key Concepts

• Shitamachi Bobsled Project: A collaborative effort by small factory owners in Tokyo to build Olympic-caliber bobsleds.
• Gravity-powered machines: Bobsleds that rely on gravity for propulsion.
• Aerodynamic design: Shaping the sled to minimize air resistance.
• Structural strength: The ability of the sled's frame to withstand forces without deforming or breaking.
• Seamless construction: Building the sled's frame from a single piece of metal to avoid weak points from welding.
• Precision engineering: Achieving extremely high accuracy in manufacturing, measured in millimeters (e.g., 0.01 mm).
• Adaptability: The ability to quickly modify designs based on feedback and changing requirements.
• Weight reduction: A critical factor in bobsledding to ensure the sled and athletes do not exceed weight limits and to improve performance.
• Craftsmanship: High-quality skill and artistry in manufacturing.
• Post-war economic miracle: The period of rapid economic growth in Japan after World War II, where small factories played a significant role.
• Successors: The next generation taking over family businesses.
• Olympic glory: Achieving success and recognition at the Olympic Games.

Shitamachi Bobsled Project: A Pursuit of Olympic Dreams

The YouTube video details the ambitious "Shitamachi Bobsled" project, initiated in 2011 by a group of small factory owners in Tokyo's traditional working-class neighborhood (Shitamachi). Their primary goal is to compete in the Olympics, a dream they have pursued for three consecutive games without success. With the upcoming Milano Cortina Winter Olympics in Italy, the Shitamachi sled might be selected by the host country's national team.

Collaboration and Engineering Prowess

The project involves approximately 20 companies, showcasing a remarkable collaborative effort. The head coach of Italy's bobsled team, Manuel Mahhata, recently visited the workshop to oversee final adjustments on the latest sled model, which comprises over 200 parts. A key contributor is a company specializing in satellite radar systems, responsible for the sled's overall engineering.

Technical Details of the Sled:

• Construction: The sled's base frame is milled from a single block of metal, eliminating the need for welding. This "seamless construction" significantly enhances its structural strength.
• Precision: The manufacturing process demands an astonishing precision of 0.01 mm.
• Competition: The Shitamachi project members are challenging the typical dominance of major automakers in the typically high-stakes field of Olympic bobsled manufacturing.

Adaptability and Weight Reduction Challenges

The Italian team has expressed admiration for the Shitamachi sled's performance in recent international competitions, particularly valuing the Japanese team's adaptability. On one occasion, the Italian team requested that the sled be made even lighter to avoid exceeding the combined weight limit of the sled and its two athletes.

• The Challenge: Reducing the sled's weight without compromising its structural integrity or safety.
• Key Player: AEI's firm, a member of the project since its inception, is responsible for this crucial task. The firm's representative has personally invested over $60,000 in the project.
• Motivation: The driving force behind the continued effort is a lingering frustration from past Olympic failures. The team has made three unsuccessful bids for the Olympics, starting with the 2014 Sochi Games. Despite expressing interest, some countries have rejected their sleds at the last minute due to speed or weight issues, opting for sleds from other nations.

Revitalizing Craftsmanship and Overcoming Setbacks

The Shitamachi Bobsled project also serves as a mission to revitalize the spirit of craftsmanship, which has seen a decline in Japan. The number of small factories in Ota Ward has dropped by nearly 30% in the past decade, largely due to a lack of successors. The project members aim to demonstrate their continued relevance and the potential of their skills on the global stage of the Olympics.

• Quote: "I want people to know we're still here. I want to show how far we can go with our craftsmanship and the Olympics. Well, that's the highest measure possible."
• Methodology for Weight Reduction: Si and his team decided to machine the sled's metal frame, carefully shaving off small amounts of material without compromising structural integrity. Sharp corners were then sanded down by hand to enhance both safety and weight savings.
• Result: They successfully reduced the sled's weight by an impressive 13 kg.

The Road to Cortina and Lingering Uncertainty

Despite the significant progress and the successful weight reduction, the ultimate success of the sled hinges on athlete approval and performance on race day. The team acknowledges that the technical capabilities of their overseas rivals have significantly improved, making the competition tougher than ever.

• Final Decision: Athletes will select their preferred sled on the day of the actual race, leaving the Shitamachi team in a state of suspense until then.
• Determination: The team remains "absolutely determined" to see their sled compete on the Cortina D'Ampezzo bobsled track in Italy, aiming for Olympic glory.

Conclusion

The Shitamachi Bobsled project exemplifies the power of collaboration, dedication, and pride in craftsmanship. Despite facing numerous obstacles, including past Olympic rejections and the challenges of modern manufacturing, these small factory owners are pushing the boundaries of what's possible. Their pursuit of Olympic dreams is not just about winning medals, but also about showcasing the enduring spirit and technical excellence of Japanese craftsmanship to the world. The outcome remains uncertain, but their journey is a testament to their unwavering determination.