Few and far between, there may be a harmless but disturbing vibration in the DG-1000 air brake steering as soon as air brakes are extended only a little bit. This effect also depends on approach speed. To avoid such vibration we adapted a friction brake as known from LS8 and certified it with TN1000-33. Customers interested in this modification may contact our Spare Parts Department in order to get an offer. All DG-1000 may be modified on demand. The friction brake comes as standard on all DG-1000 delivered since August this year.