In pictures: Theories that could explain what happened to MH370 Flown north in the ‘shadow’ of another plane

Another theory suggests that instead of flying south, the plane flew north in the “shadow” of another airliner around half an hour to an hour after dropping off civilian radar. The aviation blogger Keith Ledgerwood argued that MH370 and Singapore Airlines flight 68 were in the same vicinity at the time, and said: “It became apparent as I inspected SIA68's flight path history that MH370 had manoeuvred itself directly behind SIA68 at approximately 18:00UTC and over the next 15 minutes had been following SIA68.” By flying a short distance behind and most likely a little above the altitude of SIA68, also a Boeing 777, Ledgerwood said that it would be able to appear as a single blip on radar screens. SIA68 flew on to Spain – and this theory suggests MH370 could have branched off and landed in one of a number of locations across Xinjiang (north-east China), Kyrgyzstan or Turkmenistan. Experts have said that the idea sounds “feasible”, and that even if higher-resolution military radar was monitoring SIA68 operators might have dismissed the fact that there were two objects as an technical glitch or echo.

AP