The picture was taken at Weymouth NAS in about 1988
It's a Panavia Tornado.
Found a site with that picture and others from the same air show. Here is a better picture of one in the same markings. It is part of the RAF No. 5 Squadron, which switched from the English Electric Lightning to the Tornado in 1988. The squadron uses a maple leaf to commemorate their link to the Canadian Corps in World War 1.
It seems to be a Panavia Tornado.
It is a Panavia Tornado F3, Number: ZG796 in RAF service. See this link for a nicer pic. Very hard to read the tail number in this photo, but matches well with that noted in the link, and a unique (?) livery.