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Original source: Loftsails
This video from Loftsails covered a lot of ground. Streamed.News selected 3 key moments and summarises them here. Everything below links directly to the timestamp in the original video.
Understanding the design philosophy behind performance windsurfing sails reveals how manufacturers adapt to rider needs and technological advancements, even when it means recommending an alternative product line.
Loft Sails Addresses Power Increase in Racing Blades, Suggests Switchblade for Lighter Riders
Monty Spindler, of Loft Sails, has acknowledged a significant increase in the power output of current racing sails compared to earlier models, particularly those developed with Valerie Ghibaudo around 2016. This evolution has made newer designs more challenging for lighter individuals, such as a 68-kilogram rider who struggles to manage a 5-meter sail in strong winds.
While direct depowering of the racing blade is not feasible, Spindler recommends the 2026 Switchblade as an alternative. He notes that this model, featuring a laminate in the mast pocket, has undergone substantial development and design improvements, offering a viable option for those seeking a less overpowering sail without sacrificing performance.
"The power element of the current racing blades is definitely higher than it was back then... I could suggest considering the Switchblade, especially the 2026 version which now has a laminate in the mass pocket and has actually developed and designed very nicely."
Weight Considerations Drive Mast Pocket Design Differences in Raceboard and Slalom Sails
Monty Spindler has clarified that the notable disparity in L-sleeve, or mast pocket, design between raceboard and slalom sails is primarily attributable to the substantial weight and size differences inherent in raceboard designs. Slalom sails are generally smaller, whereas raceboard sails are considerably larger, leading to unique engineering challenges. Replicating the proportional mast pocket width of slalom sails on larger raceboard designs would result in an unmanageably large and heavy structure.
Spindler emphasized that weight is a critical factor for raceboard sailors, who often seek the lightest possible equipment, even resorting to removing minor components to reduce mass. The practical difficulties of relaunching an exceptionally heavy sail from the water, particularly a 9.5-meter model, render a wider, proportionally scaled mast pocket unworkable for raceboard applications. This operational constraint directly influences the distinct design choices for each category.
"If we made raceboard blades that had the mass pocket in percent the same width as the slalom designs, it would be an enormous, enormous mass pocket... The weight is a huge issue with race boarders. They're always looking for the lightest possible sail."
Loft Sails Explains Absence of Two-Cam Designs, Suggests Modifying Existing Switchblade
Monty Spindler has addressed inquiries regarding the absence of two-cam sails within the Loft Sails product range, explaining that introducing a new sail line for a minimal design variation is not strategically practical. He notes that the distinction between a two-cam and a three-cam sail, specifically by removing a single cam from an existing design like the Switchblade, is considered too fine a line to warrant an entirely new product offering. The company already manages numerous sail lines, and adding another for such a minor difference is deemed inefficient.
Spindler suggests that users determined to employ a two-cam setup could consider modifying a three-cam Switchblade by removing either the top or bottom cam. While he acknowledges that this might not be an ideal solution, as the sail is optimized for three cams and could react negatively to a modification, he prefers this approach over developing a new, specific two-cam design. This stance highlights Loft Sails' focus on streamlining its product portfolio while offering pragmatic user-level solutions.
"From my point of view it's too fine a line. I wouldn't want to launch another sail line that is only different because it has one less cam."
Summarised from Loftsails · 6:45. All credit belongs to the original creators. Loft Sails Press summarises publicly available video content.
