Complex sentence: On 10--11 August 1958 Dr. Pier Paolo Brielli flew an Italian Ae-45 for 3000 kilometers from South America to Dakar across southern Atlantic (as the first Czechoslovak-built aircraft) in 1981 Jon Svensen flew Ae-45S from Europe to the USA.
Split into simpler sentences: On 10--11 August 1958 Dr. Pier Paolo Brielli flew an Italian Ae-45 3000 kilometers from South America to Dakar across the southern Atlantic (as the first Czechoslovak-built aircraft). In 1981 Jon Svensen flew Ae-45S from Europe to the USA.