The new winglets, designed by the department of Aeronautical Engineering of the University of São Paulo's São Carlos School of Engineering, increased the performance of the aircraft by 20%.
ðə nˈuː wˈɪŋɡlɪts, dɪzˈaɪnd baɪ ðə dᵻpˈɑːɹtmənt ʌv ˌɛɹoʊnˈɔːɾɪkəl ˌɛndʒɪnˈɪɹɪŋ ʌvðə jˌuːnɪvˈɜːsᵻɾi ʌv sˈaʊ pˈɔːloʊz sˈaʊ kˈɑːɹloʊz skˈuːl ʌv ˌɛndʒɪnˈɪɹɪŋ, ɪŋkɹˈiːst ðə pɚfˈoːɹməns ʌvðɪ ˈɛɹkɹæft baɪ twˈɛnti pɚsˈɛnt.