As London Lifeboat Week launched yesterday, the Tower lifeboat was scrambled to reports of a man stuck on an abandoned jetty.
Today volunteers from the Royal National Lifeboat Institution will take to the streets in their yellow jackets and oilskins to collect donations for the charity.
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The Thunderbird 4 model, which measures 15ft and is made from fibre-glass, took a team of TV prop builders more than six weeks to build.
The crew got into trouble while training in choppy conditions.
Robert Clark has lived at his home for 50 years. 130,000 people have signed a petition to try to keep him there.