Whereas the engines in propeller-powered aircraft generally achieve their maximum efficiency at much lower speeds and altitudes, jet engines and aircraft achieve maximum efficiency (see specific impulse) at speeds close to or even well above the speed of sound. Jet aircraft generally cruise at faster than about M 0.8 (609mph, 981km/h or 273m/s) at altitudes around 10,000–15,000 metres (33,000–49,000ft) or more.
Frank Whittle, an English inventor and RAF officer, developed the concept of the jet engine in 1928,Hans von Ohain in Germany, a decade later developed the concept independently at the end of the 1930s. He wrote in February 1936 to Ernst Heinkel, telling him of the design and its possibilities. However, it can be argued that the English engineer A. A. Griffith, who published a paper in July 1926 on compressors and turbines, also deserves credit.
A hot-headed moment of madness marred a Northern Ireland top-flight fixture this weekend, with Glentoran goalkeeper Aaron McCarey sent off for striking his own team-mate after conceding a goal ... Even their flight was bad! Manchester United defend their... Mohamed Salah's agent 'jets into England for talks with...
In addition to enhanced range and safety, the jet also offers 20% better fuel efficiency, reducing carbon emissions, and is 40% more efficient than a mid-size jet operating the same flight ... of business jets," Honda Aircraft CompanyPresident and CEOMichimasa Fujino said.
A white male flight attendant was filmed attempting to move a Black woman to the back of the plane after a white man refused to get up from his seat to let her into her seat ... Ranting used the hashtag #JetBlue in her caption, implying that the incident occurred on a JetBlue flight ... Others noticed the female flight attendant's tactfulness.
The flight-control system automatically pushed down the noses of 737 Max jets that crashed in 2018 in Indonesia, and in 2019 in Ethiopia... The flight-control system automatically pushed down the nose of the 737 Max, including the Lion Air jet (pictured) which crashed on October 29 2018, killing 189.
The indictment charges that he hid information about a flight-control system that activated erroneously and pushed down the noses of Max jets that crashed in 2018 in Indonesia, and 2019 in Ethiopia... Max jets were grounded worldwide for more than a year and a half.
We all need to muse more, and fall is the perfect time for sitting, pondering and reflecting, particularly in front of a fire. So says a piece I read recently ... I looked up to see where they were coming from and saw a jet trail overhead. I remembered a flight I needed to book and dashed inside, preempting any and all musing ... .
A former Boeing test pilot pleaded not guilty Friday to charges that he deceived regulators by withholding information about a key system that played a role in two deadly crashes involving Boeing 737 Max jets ... Harish RawatHeld for fraud, DHFL promoters Wadhawans bought business jet, floated offshore firmsClick here for more.
Leicester piled pressure on Ole Gunnar Solskjaer with a late goal spree in their thrilling 4-2 victory against troubled Manchester United on Saturday ...United played as though they were hampered by the jet-lag associated with much longer flights throughout a wretched display ... ....
The jet last flew in 2017 and was scrapped in California last year ... It made its first flight on April 7th, 1998, and was delivered 20 days later ... During its life, the aircraft clocked 85,270 flight hours (9.73 years) across 15,655 flight cycles ... The jet’s last flight took it to San Bernardino, not far from Los Angeles, California.
The airline will start with two flights a day, one in the morning and one late afternoon flight ... From January 31 next year, Airlink will serve the route with three daily flights from Monday to Friday, one flight on Saturdays and two on Sundays ... Flights will operate with Airlink's modern Embraer E-jet.
SINGAPORE, Oct 15 (Reuters) - Asian refining margins for jet fuel have climbed in October to their highest levels since January 2020 as air travel demand recovers in Asia, according to analysts and data on Refinitiv Eikon ... However, analysts expect jet fuel consumption to fully recover no earlier than 2023 when flight demand normalises.