A 1922 flight from Lisbon to Rio de Janeiro transformed aerial navigation, marking the first time the South Atlantic was crossed by air. Carlos Viegas Gago Coutinho served as the navigator for this venture, relying on technical innovations to traverse the ocean while piloting a Fairey III biplane alongside his partner, Sacadura Cabral.
Military and Geographical Foundation
Born in Belém, Lisbon, in 1869, Coutinho entered the Naval School in 1886. He ascended through the ranks of the Portuguese Navy, eventually reaching the grade of admiral in 1958. His early career focused on field surveys and boundary delimitations across Portuguese overseas territories. Between 1898 and 1919, he conducted extensive mapping commissions in Timor, Mozambique, and Angola, and later served as the head of the Geodesical Mission for São Tomé and Príncipe.
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To address the challenges of long-distance aerial travel, Coutinho developed instruments to improve navigational precision. He modified the marine sextant by integrating spirit levels, which created an artificial horizon for pilots unable to view the natural one. Additionally, he invented an optical flight instrument, installed in the cockpit floor, designed to measure leeway whenever the ground was visible beneath the aircraft.
The South Atlantic Crossing
In collaboration with Artur de Sacadura Cabral, Coutinho executed the 1922 transatlantic flight to celebrate the centennial of Brazil's independence. The journey involved multiple stops and the assistance of the support ship República. When engine failure forced a landing in the ocean, the pair was rescued by the British freighter Paris City. They completed the final leg of their mission using a replacement aircraft.
Later Research and Controversy
Following 1924, Coutinho shifted his focus toward the nautical history of Portuguese maritime expansion. His extensive research culminated in the 1951 publication of his two-volume work, A Náutica dos Descobrimentos. During his later years, he gained attention for his vocal opposition to Albert Einstein's theory of relativity, producing various texts that challenged the physics paradigm of the era.
Fast facts
- Born: 1869, Lisbon
- Died: 1959, Lisbon
- Military rank: Admiral
- Notable partner: Sacadura Cabral
- Flight achievement: First South Atlantic aerial crossing (1922)
- Published work: A Náutica dos Descobrimentos (1951–1952)
- Burial site: Cemitério da Ajuda
Questions readers ask
What invention did Gago Coutinho create for aviation?
He invented a sextant equipped with two spirit levels to establish an artificial horizon, and an optical device for measuring leeway during flight.
How did the 1922 South Atlantic flight end?
After ditching in the ocean due to engine failure, the aviators were rescued by a British freighter and finished the journey in a different aircraft.
Achievements
- Worked as geographer, aircraft pilot and historian
