The advanced Boeing 787 Dreamliner Aircraft of the Air India on Saturday touched down at the Indira Gandhi International Airport in New Delhi. The arrival ended over four-year wait of the national carrier to add this next-generation airplane to its fleet.The commander of the aircraft Capt A S Soman said, the Dreamliner took 15 hours of flying time from Boeing's Charleston factory in South Carolina in the US to Delhi, plus a 90-minute stopover at Frankfurt for re-fuelling. He said that it was a very smooth flight.It has a very quite cabin and there is much less fatigue for the pilot. It is both a pilot and passenger friendly airplane.AIR correspondent reports Air India, which ordered 27 Dreamliners six years ago, would get two more of these planes in the next few weeks.A total of eight of them would arrive by March next year, including five by December, while the national carrier would get six more in the 2012-13 fiscal.The aircraft would ultimately become the mainstay of Air India's global operations and is key to its turnaround plan. For Air India, the plane has been configured to have 256 seats, 18 full-flat Business Class seats and 238 in Economy.It also features a host of sophisticated technologies, including mood-lighting inside the cabin and large LCD display screens for in-flight entertainment.