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.
وأظهرت اختبارات مبتكرة في النفق الهوائي ان هذا التعديل يحسِّن اداء الطائرة بنسبة يمكن ان تتجاوز ١٠ في المئة .‏