[quote=So Boerd]
Do not mean to correct you, however what you solved for was not diameter, it was half circumference. If the horse was running straight through the earth, you would be right, however the horse runs along the surface which is round. True diameter would be twice the distance you solved for over pi. 8064 times 2 over pi is 5133.7 km
[/quote]

:P I was never any good at maths...

[quote=HounderHowl]
So much science, also where is the accepted nation sheets?
[/quote]

Editing them just now - End of the OP in the Nation Dump