Driving wheels – 4ft 1½in – wheel stroke 20in – 12 spokes Pin Between Spokes
1257.3mm = 8.27mm
3-005 Locomotive Driving Wheel: Mk5: 8.0mm
61.25mph top speed?
Gear Ratio = Motor RPM x Wheel Dia. (mm) x 0.018 / Prototype Speed (mph)
35000 x 8 x 0.018 / 60 = 60