Album: Transport,
New uploads: 15,
Hits: 1304,
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A jet aircraft is an aircraft propelled by jet engines. Jet aircraft generally fly much faster than propeller-powered aircraft and at higher altitudes – as high as 10,000–15,000 metres (33,000–49,000 ft). At these altitudes, jet engines achieve maximum efficiency over long distances. The engines in propeller powered aircraft achieve their maximum efficiency at much lower altitudes. Some jet aircraft can move faster than sound...
Album: Pictures of the Day,
New uploads: 85,
Hits: 2605,
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A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership.
They can either be tagged as POTD or displayed in a special page on that site...
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