Challenger 601 series differences??

[jeff spicoli]

from Wikipedia:


CL-601

• CL-601-1A: refined version including winglets to reduce drag and more powerful General Electric CF-34 engines. (66 built, including 4 Canadian Forces CL-144/ CC-144B)[2]
  • CL-601-1A/ER: 601-1A retrofitted with an additional fuel tank in the tail
• CL-601-3A: engine with a higher flat rating and a glass cockpit. This was the first version marketed by Bombardier.
  • CL-601-3A/ER: 601-3A with an additional, optional fuel tank in the tail
• CL-601-3R: the tail tank was made standard, and airline style "unsided" engines (no left or right) were used, matching what was used on the CRJ.

hope this helps.