Emirates Spinnaker Tower Emirates Spinnaker Tower The Emirates Spinnaker Tower is a landmark observation tower in Portsmouth, England, UK. It is the centrepiece of the redevelopment of Portsmouth Harbour, which was supported by a National Lottery grant. Its shape was chosen by Portsmouth residents from a selection. The tower, designed by local firm HGP Architects and engineering consultants Scott Wilson and built by Mowlem, reflects Portsmouth's maritime history through its being modelled after a sail. The tower was opened on 18 October 2005. The tower is owned by Portsmouth City Council, but operationally it is managed by Continuum Leading Attractions, a cultural attractions
Spinnaker top for easy access. While a symmetric spinnaker is flown with a "guy" and a "sheet", an asymmetric spinnaker is flown with a tackline and a "sheet." The tack attaches to the bow or (often retractable) bowsprit, and the two sheets attach to the clew. The head of the sail is attached to the spinnaker halyard, which is used to raise the sail. The sheets are passed to either side of the forestay, attached to the clew; they may be passed forward of the luff of the asymmetric, or aft of the luff of the asymmetric, between the tack line