Several of the earthwork contractors I work with consider a Cat D9 big equipment. I try to remind them of the Komatsu dozer model with a 20' wide blade 10'+ in height...one of the mining machines (model D575A-3 SD) and humble the Cat.

Komatsu link

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1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya