From tomorrow's edition of Aviation Week:
Extract from an interview with Vladimir Barkovsky,
...first deputy general designer and director of MiG Russian Aircraft Corp.'s engineering center. He is a former star in Sukhoi's preliminary design department that was involved in early work on the experimental S-37.
...The amount of stealth built into the design will "always be a process of finding a compromise with flying characteristics, the capability of the sensors and the weapons," he said. "If we create a new aircraft that does not have stealth, we will waste the taxpayers' money." Barkovsky cited the British Avro Vulcan bomber of the 1950s as a low-radar-cross-section design that didn't require stealth materials and structures.