Troubled Brazilian carrier Varig is "now operating at only a fraction of its size

, utilizing about 25 of its 60 aircraft," according to Calyon Securities analysts. "Rivals estimate that its domestic market share is down to 10 percent." While Varig's fate is determined by the court overseeing its restructuring, one rival, TAM, is planning to launch daily Sao Paulo-London flights, effective 28 Oct.