Carlos Viegas Gago Coutinho

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Carlos Viegas Gago Coutinho
Gago Coutinho e Sacadura Cabral.jpg
Gago Coutinho (right) and Sacadura Cabral (left) on board of the Lusitânia.
Born 17 February 1869
Lisbon, Portugal
Died 18 February 1959 (1959-02-19) (aged 90)
Lisbon, Portugal
Occupation Portuguese Navy officer
Known for First aerial crossing of the South Atlantic
Assinatura Gago Coutinho.svg

Carlos Viegas Gago Coutinho, GCTE, GCC, generally known simply as Gago Coutinho (Portuguese pronunciation: [ˈkaɾluʒ ˈvjeɣɐʒ ˈɣaɣu kowˈtĩɲu]; 17 February 1869 – 18 February 1959) was a Portuguese naval officer and aviation pioneer who, together with Sacadura Cabral, was the first to cross the South Atlantic Ocean by air, from March to June 1922 (some sources wrongly claim 1919), from Lisbon to Rio de Janeiro.[1]

The Fairey IIIB seaplane used by Coutinho and Cabral for their transatlantic flight did not have enough fuel capacity to make the entire trip unaided so various stops were made along the way and the aviators were shadowed by a support ship, República. On the journey down the Brazilian coast a heavy rain storm caused the aircraft’s engine to fail and the aviators were forced to ditch in the ocean. Realizing that something was wrong, the República sent out a distress signal asking other ships in the area to look out for the seaplane. After some time in the water, the aviators were found by a British freighter. The Paris City of the Reardon Smith Line, under Captain A.E. Tamlyn, en route from Cardiff to Rio, rescued Coutinho and Cabral; they completed their journey with a new aircraft. A commemorative painting of the rescue[2] was produced by the Portuguese comic artist, José Stuart Carvalhais (‘Stuart’).

Gago Coutinho invented a type of sextant incorporating two spirit levels to provide an artificial horizon.[3] This adaptation of the traditional marine sextant allowed navigation without visual reference to the real horizon. He also invented an optical flight instrument, to be mounted on the plane's cockpit floor, which measures leeway in flight whenever ground remains visible.



  1. ^ N.R.P. Almirante Gago Coutinho in Portuguese.
  2. ^ Um Guacho de Stuart Illustration of the rescue - text in Portuguese
  3. ^ History of the Sextant includes a photograph of a Gago Coutinho spirit level attachment.


PINTO, Rui Miguel da Costa,”Gago Coutinho simples aventureiro ou um homem de Ciência” in Filatelia Lusitana, série III, nº19, Lisboa, Federação Portuguesa de Filatelia, 2009

PINTO, Rui Miguel da Costa,Gago Coutinho e as relações luso brasileiras, Espírito Santo (Brasil), Instituto Histórico e Geográfico do Espírito Santo, 2009

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