• 2-6-6
• 2-6-6s
• 2-6-6-0
• 2-6-6-2
• 2-6-6-4
• 2-6-6-6
• 2-6-6-0s
• 2-6-6-2s
• 2-6-6-4s
• 2-6-6-6s

2-6-6 (suomeksi)

Määritelmät:

• Under the w:Whyte_notation, Whyte notation system, a steam locomotive that has two leading wheels, six coupled driving wheels, and six trailing wheels.