Harry disappeared from his home in Ipswich in 2008 but turned up at the Blue Cross last month.
Seven narrow boats will tackle the open sea to use lesser-used waterways.
The naming marks 100 years of the RAF and 75 years since the Dambusters mission.
The trio from Cheltenham say the scientist was an inspiration to them.
It is hoped the World Cup-linked scheme will show children "the Church is relevant".
Northamptonshire seal a first Championship win of the season with a 10-wicket victory against Gloucestershire.
Macclesfield Town sign defender Jamie Grimes from Cheltenham and forward Ben Stephens from Stratford Town.
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