[Ref. The Global Airline Industry Edited By Peter Belobaba, Amedeo Odoni and Cynthia Barnhart © 2009 John Wiley & Sons, L td. ISBN: 978-0-470-74077-4]

Revenue Tonne Kilometer (RTK) is defined as 1 tonne of cargo transported 1 kilometer

Revenue Tonne Kilometer (RTK), is also known as Revenue Ton mile (RTM). The concept is similar to the RPK in passenger airlines. However, it is talking about 1 tonne of cargo in lieu of paid passenger.