Update from Chengdu as of 1230 local time from Chinese aircraft enthusiasts. Two VIP Boeing 737s have now landed at Chengdu. Cameras have been set up and manned. The J-20 has completed a high-speed taxi. Security is very tight and is now blocking roads and stopping traffic. A J-10 chase aircraft with a possible camera pod has now flown twice on possible weather sorties.
1243 local - J-20 engine running on runway.
J-20 is now flying with J-10 as chase aircraft as of 1250 local.
TJ