Umoe Firmus accessing wind turbine at Sheringham Shoal using BCS ™. Posted on 31. August 2018 at 11:13. Umoe Firmus high speed pass at Sheringham Shoal. Posted on 31. August 2018 at 11:11. Umoe Rapid at high-speed and low wake wash. Posted on 31. August 2018 at 11:11.