hi Mike,
Just checked the REME recovery data again, and the Unladen figures I quoted were for a Tractor, semi-trailer, 30 tons, Mk3., with a GVW (unladen) of 21tons 5cwt.
Now the info here for the Mk3 with ballast body is as follows;
Fully laden
Front suspend tow, 6t 10 cwt
Rear suspend tow, N/A
GVW 36 tons
Unladen
Front suspend tow, 4t 15cwt
Rear suspend tow, 11t
GVW 22t 14cwt
Rear suspend can be reduced to 10tons, (assume this is by removing the wheels?)
I am only quoting from the Recy Mech training book.
Richard