[2] After her purchase by the Hong Kong–based merchant house Jardine Matheson, in 1833 Sylph set a speed record by sailing from Calcutta to Macao in 17 days, 17 hours.
Sylph was designed in London by Sir Robert Seppings, surveyor of the Royal Navy, to the order of a consortium of Calcutta merchants headed by Rustomjee Cowasjee.
[citation needed] Sylph and another well-known clipper, Cowasjee Family, were fitted out with extra guns and full European crews during the war, and were joined by the Lady Hayes, belonging to Jardine, Matheson & Co., the three ships sailing in company.
[5] While sailing from Calcutta to China and carrying 995 chests of opium, Sylph ran aground on a shoal off the Malay Peninsula on 30 January 1835.
[2][8] After undergoing re-rigging in Hong Kong in 1848 at a cost of 11,166.22 Mexican dollars, Sylph disappeared en route to Singapore the following year, possibly captured and burned by pirates based on Hainan Island.