surveys Cooperating with other naval forces. Fleet Between 2001 and 2016 the Trinidad and Tobago Coast Guard fleet included TTS Nelson, an purchased from the Royal Navy. In April 2007, the Coast Guard contracted for three offshore patrol vessels from VT Shipbuilding (later BAE Systems Surface Ships) in Portsmouth, England. Construction of the s Port of Spain, Scarborough and San Fernando suffered significant delays and, in September 2010, though substantially complete, the Government of Trinidad and Tobago cancelled the order. The Brazilian Navy acquired all three ships as their s. On 29 April 2015 the Ministry of National Security placed orders with the Dutch company Damen Shipbuilders for four coastal patrol vessels, two fast utility boats and six interceptors. In August 2018, the government contracted with Austal to build two s at Henderson, Western Australia, scheduled for delivery in mid-2020. The two vessels, Port of Spain and Scarborough were delivered to the TTCG in May 2021. Air Guard The Air Wing of the Trinidad and Tobago Defence force was formed on 15 February 1966, and was initially part of the Trinidad and Tobago Coast Guard and was called the Air Wing of the Coast Guard or the Air Wing. In 1977, it was separated as its own entity. In 2005 it was renamed the Trinidad & Tobago Air Guard (TTAG). Its bases are at Piarco International Airport, Crown Point International Airport, and the Heliport at Chaguaramas. Its purposes are to protect and patrol Trinidad and Tobago's airspace, and is also used for transport, search and rescue, and liaison. The current commander of the Air Guard is Group Captain Kester Weekes. He has taken command of the unit in 2019, succeeding Air Commodore Daryl Daniel upon his promotion to Chief of Defence Staff in March 2019. Aircraft Current inventory Its former fleet of aircraft included: One Cessna 337 (O-2A) Skymaster (1966–1972), One Cessna 402 Utililiner (1972–1998), four Aérospatiale Gazelle (1973–1995), One Cessna 172 Skyhawk (1991–1998), Two Piper Navajo 2000–2009, One Cessna 310 1985-2011 Four Agusta Westland AW139 helicopters was intended to be used for surveillance and reconnaissance missions related to search and rescue, border patrol and drug interdiction. Due to lack of funding for maintenance, all helicopters was grounded since 2017. In December 2020, The Minister of National Security announced that one AW139 is back up in the air. The Minister of National Security announced that the establishment of a military