Great Britain's LTA mixed coxed fours beat chief rivals Germany in a thrilling sprint for the line to win Paralympic gold.
British rowers David Smith, James Roe, Naomi Riches, Pam Relph and cox Lily van den Broecke added the Paralympic crown to the world title they won in Bled last year.
Britain's success in the mixed coxed four brought to a victorious conclusion for the host nation at Eton Dorney
Tom Aggar lost his Paralympic title and his five-year unbeaten streak as he finished fourth in the AS men's single sculls final.
Nick Beighton and Samantha Scowen, who only came together in the TA mixed double sculls last year, also had to settle for fourth after being edged out of the medals in a tight finish.
Britain and Germany, who had set a new world's best time in the heats, seized control of the race from the outset and it came down to a head-to-head sprint for the line.
The Germans were marginally faster over the first 500 metres but Britain finished stronger, taking the lead in the third quarter of the race and eventually winning by nearly two seconds.