Parasol rig: Pilcher of London and Wilson of Dublin demonstrate their 'Cyclone' yacht
Posted: Sat Sep 29, 2018 1:07 am
Does anyone know anything about the boat in these pictures? https://www.prints-online.com/parasol-yacht-602267.html
https://www.scienceandsociety.co.uk/res ... e=10311101
https://www.prints-online.com/royal-aer ... 05275.html
Google translates the text that goes with the first link as follows:
The new kind of sails that represent our engraving was successfully tested in the waters of Southampton by the inventors Mr Percy S. Pilcher of London and Mr M. Wilson of Dublin. With the usual sails of our ships, a portion of the force of the wind tends to tilt the boat, and if this force becomes too great relative to the weight of the keel, the boat capsizes. The parasol sail eliminates the danger because the action of wind tends to lift the boat. Indeed, the lifting force is parallel to the mast, the latter being fixed in the axis of the boat without being connected to the sides, it follows that the hull does not undergo any inclination (Fig 1 and 2).
The mat is mounted on a pivot and can move in two right-angle slides (fig 3).
The sail is elliptical in shape, with a long axis in the horizontal, it is arranged on a mount that resembles that of an umbrella and can fold over the direction of the small axis.
The usual inclination of the sail is 45° to the horizon, but this angle can be modified according to the force of the wind.
According to the inventors, this sail is called
That is all I could find. Can anyone point me to more information?
https://www.scienceandsociety.co.uk/res ... e=10311101
https://www.prints-online.com/royal-aer ... 05275.html
Google translates the text that goes with the first link as follows:
The new kind of sails that represent our engraving was successfully tested in the waters of Southampton by the inventors Mr Percy S. Pilcher of London and Mr M. Wilson of Dublin. With the usual sails of our ships, a portion of the force of the wind tends to tilt the boat, and if this force becomes too great relative to the weight of the keel, the boat capsizes. The parasol sail eliminates the danger because the action of wind tends to lift the boat. Indeed, the lifting force is parallel to the mast, the latter being fixed in the axis of the boat without being connected to the sides, it follows that the hull does not undergo any inclination (Fig 1 and 2).
The mat is mounted on a pivot and can move in two right-angle slides (fig 3).
The sail is elliptical in shape, with a long axis in the horizontal, it is arranged on a mount that resembles that of an umbrella and can fold over the direction of the small axis.
The usual inclination of the sail is 45° to the horizon, but this angle can be modified according to the force of the wind.
According to the inventors, this sail is called
That is all I could find. Can anyone point me to more information?