SAFETY ARRANGEMENT FOR AIRCRAFT AND METHOD FOR DETERMINING TYPE OF THE LANDING SURFACE FOR AN AIRCRAFT

摘要

A safety arrangement for an aircraft, especially for amphibious aircraft, being configured for determining a type of landing surface (such as water/solid ground) and including: two transceivers (301, 302); the first transceiver (301) configured to operate on first electromagnetic wavelength and the second transceiver (302) configured to operate on second electromagnetic wavelength differing from the first wavelength, and at least one of transceivers is configured to receive the reflections electromagnetic wavelengths, and determining element for determining the type of the landing surface based on the properties of two electromagnetic wavelengths reflected from the landing surface and for outputting a signal indicating the type of the determined landing surface.

主权项

1. A safety arrangement for an aircraft, especially for amphibious aircraft, said safety arrangement being configured for determining a type of landing surface, characterized in that the arrangement comprises:
two transceivers (301, 302),
where the first transceiver (301) is configured to operate on first electromagnetic wavelength,where the second transceiver (302) is configured to operate on second electromagnetic wavelength differing from said first wavelength, andwhere said transceivers (301, 302) are configured to transmit said electromagnetic wavelengths essentially towards said landing surface and at least one of them is configured to receive the reflections of said electromagnetic wavelengths, determining means for determining the type of the landing surface based on the properties of said two electromagnetic wavelengths when reflected from said landing surface, and for outputting a signal indicating the type of the determined landing surface.