 Agincourt had five masts and a sail area of 32 @,@ 377 square feet ( 3 @,@ 008 m2 ) . Agincourt only made 9 @.@ 5 knots ( 17 @.@ 6 km / h ; 10 @.@ 9 mph ) under sail mainly because the ship 's propeller could only be disconnected and not hoisted up into the stern of the ship to reduce drag . Both funnels were semi @-@ retractable to reduce wind resistance while under sail . Admiral George A. Ballard described Agincourt and her sisters as " the dullest performers under canvas of the whole masted fleet of their day , and no ships ever carried so much dress to so little purpose . " In 1893 – 4 , after her withdrawal from active service , Agincourt had two masts removed and was re @-@ rigged as a barque . 
