Carlc:
Muckaway:
Someone mentioned drotts; I took part of my 'dozer test in an International TD15. Pushed like hell and my ears rattled even after I took my earmuffs offI took my dozer test on the Liverpool end of the M62 on Queens drive on a Cat D8. The examiner did about 25 of us in the day for McAlpines. All he did was watch us move the dozer round and asked us about 4 questions and we all passed. The International B100 Drots were great little work horses but they did lack a bit of power and at times they were asked to do jobs out there league.
Never got to drive an old school D8 but did grt training on a ‘74 D4. It felt like operating a signal box with all those levers and pedals. 
To keep this on thread, I sat on Dads’ lap and steered an Eaton Twin Split Foden when I was about 10; I failed the theory surrounding it…