You could use NSArchiver to encode your objects as binary data, but it would be better to create an entity with latitude and longitude floats and then have a one-to-many relationship to this entity type.
– Paulw11Apr 08 '17 at 10:52
Thanks. A one-to-many relationship of what though? Can you be more specific please?
– konyv12Apr 08 '17 at 10:56
Possible duplicate of [How to save Array to CoreData?](http://stackoverflow.com/questions/29825604/how-to-save-array-to-coredata)
– RajeshKumar RApr 08 '17 at 10:59
Say your current entity is "Flight". Create a new entity "Location" with latitude and longitude attributes. Create an ordered one to many relationship from Flight to Location.
– Paulw11Apr 08 '17 at 10:59