Can Bombardier extend CS300 to a CS500?

By Bjorn Fehrm Subscription required Introduction April 14, 2016, ©. Leeham Co: Bombardier is working hard to get additional mainline airline customers for its C Series project. The latest discussion is whether Delta Air Lines would replace its fleet of Boeing MD-88s with the C Series.

Figure 1. C Series largest model, CS300. Source: Bombardier.

In this context, it’s also discussed if the largest model, the CS300, Figure 1, is large enough for Delta. This aircraft seats 135 passengers in a two class configuration and up to 160 passengers in an all economy high density version. The question is whether this is sufficient for Delta and other mainline customers, or if a still larger version is needed in the program, the oft-discussed CS500. We decided to use our proprietary aircraft model to see if a CS500 would be straight forward for Bombardier to develop, should Delta or any other customer ask for a three model C Series program. Summary
  • The C Series aircraft program was developed with the CS300 as the main model. The wing, engine and landing gear were dimensioned with the CS300 in mind.
  • The CS100 is a shrink of the CS300, and not vice versa (the CS300 a stretch of the CS100).
  • A tentative CS500 stretch if therefore a first stretch of the program’s main model and not a double stretch of a CS100.
  • This is evident when one starts to analyze how a CS500 would be designed. There are rather modest changes that need to be done to create an extended model that seat up to 180 passengers.

To read the rest of the article Login or Subscribe today.