Mayflower MAS400 sets off to try and cross the Atlantic again

[cymplecy]

Sorry - forgot to say this is due to the distance reporter that @loucheman and @dardoro got working

Help with haversine formula

Hello, I'm hoping someone can point out the issue in this distance block. The distance between two spots on the planet is calculated using the haversine formula (longitude, latitude of the 2 spot)