
"In reality, the gravitational field is 9.7773 m/s² in Colombo compared to 9.7979 m/s² in Cape Canaveral, Florida (where SpaceX launches the Falcon Heavy from).
That means that if you drop a weight from 100m in Sri Lanka, it will land 21.5 milliseconds later than if you do the same thing in Florida. Going the other way, the force of gravity acting on a rocket would be 0.215% less, meaning reduced fuel costs (theoretically). On a $90 million dollar launch¹ this is significant (around $190,000), but not as significant as the whole supply chain of course."
more...
"Almost" Good Answers: