Þeir eru að bakka vélinni og þá myndast þessi hvirfill.
tekið af wikipedia:
The C-17 is powered by four fully reversible, F117-PW-100 turbofan engines (the Department of Defense designation for the commercial Pratt and Whitney PW2040, currently used on the Boeing 757). Each engine is rated at 40,440 lbf (180 kN) of thrust. The thrust reversers direct the flow of air upward and forward. This facilitates a decreased rate of ingestion of foreign object debris (FOD) as well as reverse thrust capable of backing the aircraft. Additionally, the C-17's thrust reversers can be used at idle-reverse in flight for added drag in maximum-rate descents.
Hér er mynd af c17 frá u.s. air force. Vatn eða eitthvað að renna úr hreyflinum… Afhverju gerist það ?
Hugi notar vefkökur til að bæta notendaupplifun á vefsíðunni og greina umferð um hana.
Einnig hefur Hugi uppfært persónuverndarstefnu sína.