Using innovative wind - tunnel testing, they found that if the modified wings were precisely curved at the tip and properly aligned with the airflow, they improved aircraft performance ​ — nowadays by up to 10 percent or more.
Veikdami testus aerodinamiskajā caurulē, viņi ir noskaidrojuši, ka tad, ja spārna gals ir precīzi uzliekts un pareizi pavērsts pret gaisa plūsmu, gaisa kuģa lidtehniskie raksturojumi uzlabojas aptuveni par 10 vai pat vairāk procentiem.