Sailboard for a wind powered sailing apparatus

Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape

Patent

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Details

114274, 114279, 441 79, B63B 3579

Patent

active

058875387

ABSTRACT:
The novel sailboard is arcuate about its longitudinal and transverse axes, and has blading fore and aft for supporting the sailboard upon a frozen surface. The front blading is carried on a pivotal plate which has spring loading and damping, and the rear blading comprises pluralities of blades of varying height and attitude relative to the longitudinal axis.

REFERENCES:
patent: 3455261 (1969-07-01), Perrin
patent: 3599259 (1971-08-01), Shewmon
patent: 3747138 (1973-07-01), Morgan
patent: 4194458 (1980-03-01), Messing
patent: 4923427 (1990-05-01), Roland
patent: 5152705 (1992-10-01), Rock

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