CHIEFTAIN: Those backers pledging £500 or more, in addition to being eligible for all the rewards associated with lower levels of backing, will be given a place in the crew of the boat on one of its sea trials. You, or another nominated in your place if you wish to make a gift of this rare opportunity, will get a 30 minute voyage in the boat (subject to appropriate safety considerations), at a date to be arranged in July or August 2013.

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