BAR Technology Wind Propulsion

Lookout required at the forward part of the vessel at all times?

Cameras that will display on the bridge will compensate for the obstructions of the wings.

Yes, but will that meet the legal requirement to “keep a good lockout at all times”??
OK, they have probably checked before investing in this technology.

If major charterers demand lower emission from ships they take on charter the changes will happen faster:

PS> It is already the case with Equinor. To get long term charter they demand hybrid propulsion and/or alternative fuel. (Wing Sails would not be very suitable on a PSV, CSV, or AHTS)