Hello Mike? – You are absolutely right – except the decimal point is in the “wrong” place, ie
If I set the 296 to hddd.ddddd° I get N51.32383° for Blackbush but AFE gives N5119.43. The same for Bembridge: 296 = N50.67804 and AFE = N5040.68.
I don’t seem to be able to move the decimal point which means I cannot input any of the waypoints listed in the AFE En-route Guide.