Flying in economy class doesn't have to be a miserable experience.

To make flying more enjoyable for its passengers, Singapore Airlines Ltd. is adding bigger screens, more in-flight movies and a PC, running Red Hat Inc.'s distribution of the Linux operating system, in every seat on its newest planes.

Unlike many U.S. airlines, the carrier doesn't view in-flight service as a cost center where cutbacks can be made to reduce losses or boost profits. Instead, Singapore Airlines' latest investments in cabin service are designed to help it stand out from the competition and attract more passengers

KrisWorld, Singapore Airlines' in-flight entertainment system, is a main focus of these efforts, offering on-demand movies, television shows, games and music to passengers. Now, the airline aims to raise the bar, rolling out a new version of KrisWorld that improves significantly on existing systems and hints at what passengers can expect to see on the Airbus S.A.S. A380 and The Boeing Co. 787 Dreamliner, when these aircraft enter service.

In recent years, video-on-demand and audio-on-demand have become common offerings on many airlines.

"It's become expected," said Eric Tong, senior manager of inflight entertainment product innovation at Singapore Airlines, during a recent interview. Carriers have to push the boundaries of what's possible with these systems to stand out from the competition, he said.

The latest version of KrisWorld is based on Panasonic Avionics Corp.'s eX2 in-flight entertainment system and was jointly developed by the two companies. The system consists of a central Linux server that connects to a network of PCs installed in every seat on the aircraft. The KrisWorld software offers an improved user interface and each economy-class seat is fitted with a 10.6-inch LCD (liquid crystal display) screen that offers resolution of 1,280 pixels by 768 pixels.

They are larger in business and first class, where each seat comes with a 15.4-inch and 23-inch screen, respectively.

The heart of the KrisWorld system is the main server, which is equipped with "terabytes" of storage capacity to hold the content that's made available to passengers, Tong said. When passengers choose to watch a movie or listen to a CD, the content is streamed from the KrisWorld server to the seat's computer, which has 40G bytes of local hard-disk space and is based on a Via Technologies Inc. processor.

The IDG News Service is a Network World affiliate.