Car workers at Rolls Royce in West Sussex have walked out on strike for the first time in living memory.
They held an angry protest outside the site in Westhampnett near Chichester in a row over changes to the pension scheme.
The company says it is disappointed by the action and is trying to protect future pension provision.
But the union says the 24 hour stoppage is just the start of their campaign.
The closure of the pension scheme is scheduled for 31st May.
The union says it could see some workers lose up to £160,000 in retirement income.
David Elson, UNITE
A further six 24 hour strikes are planned on the following dates:
- Wednesday 3 May - workers at Hams Hall strike
- Friday 5 May - workers at Rolls-Royce at Goodwood strike
- Tuesday 16 May - workers at Cowley, Goodwood, Hams Hall and Swindon strike
- Thursday 18 May - workers at Cowley, Goodwood, Hams Hall and Swindon strike
- Sunday 21 May - workers at Cowley and Swindon strike
- Wednesday 24 May - workers at Goodwood and Hams Hall strike