So.. napkin math time!

( 60 / ( (one_way_trip_tiles*2) * 4 + 1 ) ) * cargo_capacity = ore per hour per harvester (round trip)

So my partially upgraded remote harvester moving 4 tiles would be

(60 / ((4*2) * 4 + 1 )) * 1650 = 3000 ore per hour?