Kite · Pionieri

1994

Il KiteSki risale il vento

Bill e Cory Roeseler brevettano e vendono un sistema di kite con sci d’acqua e una barra con mulinello, che può essere rilanciato dall’acqua e risalire il vento.

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US 5,366,182, fig. 6 (1994) · pubblico dominio

Bill Roeseler, esperto di aerodinamica alla Boeing, e suo figlio Cory lavoravano a un problema semplice: come farsi trainare sull’acqua da un kite senza l’aiuto di una barca. La loro risposta fu il KiteSki. Il brevetto, depositato nel novembre 1993 e concesso il 22 novembre 1994, porta il nome di entrambi.

Il rider stava in piedi su sci d’acqua e pilotava un kite a delta a due linee da una barra galleggiante lunga almeno tre piedi. Un mulinello frenato sulla barra permetteva di srotolare e recuperare le linee, così il kite poteva essere lanciato dall’acqua. Poiché il kite tira nel centro di resistenza laterale del rider, sostiene il brevetto, non crea alcun momento ribaltante, e la dimensione della vela non è più limitata da un albero.

Il KiteSki fu messo in vendita nel 1994. Poteva risalire il vento e aveva un sistema rudimentale per il rilancio dall’acqua. Alla fine degli anni Novanta i due sci avevano lasciato il posto a una tavola singola, più simile a una tavola da surf.