Structural cracks found in the wing of a fighter F-35B, were more immense than the number previously reported aereo.jor.br 23 February, referring to an article published in the South American journal Aviation Week.
In the past year, cracks were found in section 496 of the wing (one of the four main power ribs) after 9400 hours of static tests (corresponding to more than 8000 flight hours). Now they found a 2-adjacent ribs. But it is reported that these cracks do not affect the course of flight testing applets. Model F-35B is designed to equip the U.S. Marine Corps, and military aviation England and Italy.
Cracks also working on plans to take USMC F-35B into service in July 2015. Pentagon considers this dilemma completely solved, the necessary changes will be done in the production of fighter 8th and 9th parties this year. Reported that strengthening ribs section 496 will increase the weight in less than two pounds (about 0.8 kg). How much weight will increase 2-cracked ribs other, not reported.
Despite the problems with the F-35B chief applets F-35A U.S. Air Force Brigadier General Mark Welsh (Mark Welsh) on February 21 the yearly symposium of the Association of Air Warfare (Air Force Association Air Warfare) said that «the program feels very good.»