It adds a logarithmic factor: https://aviation.stackexchange.com/questions/45439/how-much-of-an-improvement-would-a-1-weight-decrease-on-an-airplane-be-to-the-i

It adds a logarithmic factor: https://aviation.stackexchange.com/questions/45439/how-much-of-an-improvement-would-a-1-weight-decrease-on-an-airplane-be-to-the-i https://aviation.stackexchange.com/questions/45439/how-much-...