7 1/4 inch gauge BR Class 35British
Rail's Class 35 was a mixed-traffic loco with a Mekydro-design
hydraulic transmission, leading to their nickname as "Hymeks".
This
model is powered by electric motors driving both bogies, but a petrol
powered generator is also installed to 'top up' the batteries - so the
loco doesn't have to come out of service to be recharged! Our
very own 'hybrid'!