Science Quiz™ - Februar :: Nauka ~ Tehnika ~ Military

Winglets have the potential to give the following benefits:
Improved climb gradient. This will enable a higher RTOW from climb limited airports (hot, high or noise abatement) or obstacle limited runways.
Reduced climb thrust. A winglet equipped aircraft can typically take a 3% derate over the non-winglet equivalent aircraft. This can extend engine life and reduce maintenance costs.
Environmentally friendly. The derate, if taken, will reduce the noise footprint by 6.5% and NOx emissions by 5%. This could give savings on airport noise quotas or fines.
Reduced cruise thrust. Cruise fuel flow is reduced by up to 6% giving savings in fuel costs and increasing range.
Improved cruise performance. Winglets can allow aircraft to reach higher levels sooner. Air Berlin notes, “Previously, we'd step-climb from 35,000 to 41,000 feet. With Blended Winglets, we can now climb direct to 41,000 feet where traffic congestion is much less and we can take advantage of direct routings and shortcuts which we could not otherwise consider.”
Good looks. Winglets bring a modern look and feel to aircraft, and improve customers' perceptions of the airline.

Мислим да треба додати и то да крило са винглетом ствара мање вртложење при полетању,што је важно мањим ваздухопловима који су на "лајн апу" и који би,у екстремним ситуацијама могли доживети и слом узгона,а у сваком случају непријатно узлетање....