Let's just imagine that there are no continents that span the equator like Africa and South America and also no large Equatorial Islands like those in Indonesian archipelago.
So that between latitude 10 north and 10 south there are no substantial landmasses.
Holding Earth's other physical parameters constant would there be a circum-equatorial current like Antarctic Circumpolar Current?
Would it be stronger/faster than the current Pacific Equatorial Current? How strong would it be?
Could a wooden sail ship cross the current from North to sail to South?
This is the first part of the question. The second part of question would be to ask the effect of a continous equatorial current on the world climate.