Wood chipping performance of a modified forager

► A forage harvester was modified for wood chipping using a special conversion kit. ► Productivity and fuel consumption were the same as for a dedicated wood chipper of the same power. ► Temporary conversion allowed better depreciation, resulting in a 25% reduction of chipping cost. ► The modified forager offered the combined advantages of road-capability and good off-road mobility. ► Poplar wood was easiest to chip, compared to pine and locust wood.