By June, Crowhurst had secured some financial backing, essentially by mortgaging the boat, and later his family home. Crowhurst's boat, however, had not yet been built; despite the lateness of his entry, he pressed ahead with the idea of a custom boat, which started construction in late June. Crowhurst's belief was that a trimaran would give him a good chance of the prize for the fastest circumnavigation, and with the help of a wildly optimistic table of probable performances, he even predicted that he would be first to finishdespite a planned departure on 1 October.