12.41pm:
Woodley and Simpson have changed their plans. They were due to
address the strike rally, but not anymore according to Dan Milmo who is at the strike HQ at Bedfont football club.
Tony Woodley and Derek Simpson, the unite joint general secretaries, will not be attending the strike HQ at bedfont today, which has not drawn the attendance levels of the weekend March strikes. The weather and the fact it is Monday account for this, union officials say.
The 15 days of strikes will be a fundamental test of support for the strike, because it is expected to give every one of unite's 11,000 cabin crew members the opportunity to walk out. Or, crucially, to carry on working. Union officials say they will be able to gauge support for the first wave of strikes by Friday.
"These strikes will determine whether people are willing to carry on with this dispute," said one official."