Other rewards were on offer for those who presented methods that worked within 80 geographical miles of the coast (being the most treacherous part of voyages) and for those with promising ideas who needed help to bring them to readiness for trial. Many rewards were paid out over the 114 years of the Board of Longitude's existence. John Harrison received more money than any other individual, with several rewards from the 1730s–1750s, and £10,000 in 1765.
Other incentives were provided to those who presented methods that worked within 80 miles of the coast (the most perilous section of voyages) and to individuals with promising ideas needing assistance in bringing them to a state of readiness for testing. Numerous rewards were paid out over the 114 years of the Board of Longitude's existence. John Harrison received more money than any other person, with several payments from the 1730s–1750s, and £10,000 in 1765.