A gas turbine engine, comprising: a low pressure spool having a low pressure compressor and a low pressure turbine connected by a low pressure shaft ; a reduction gear train having a sun gear , a carrier having a plurality of planet gears attached thereto, and a ring gear , wherein the sun gear is connected to the low pressure shaft, and the carrier or the ring gear provides an output drive; a propulsive fan mounted fore of the gear train; a fan shafting arrangement comprising a fan shaft which is connected to the output drive of the gear train via a coupling , wherein the coupling includes a connection point to the fan shaft at a first end, and a connection point to the gear train at a second end, and wherein the first end and second end are axially separated and radially separated and the axial separation is greater than the radial separation, and wherein the coupling is torsionally rigid but flexible in the radial direction; the fan shaft having two axially separated bearing locations so as to be supported by a first bearing and a second bearing which are axially separated, wherein the first end of the coupling attaches to the fan shaft between the first and second bearings; characterised in that : the fan shaft further comprises a fan support shaft which passes freely through the sun gear so as to have no direct contact therewith and as such passes through the centre of the gear train along the axis of rotation of the gearbox and fan, and the first end of the coupling attaches to the fan shaft between the first bearing and the gear train, and the second bearing is aft of the gear train. a low pressure spool having a low pressure compressor and a low pressure turbine connected by a low pressure shaft ; a reduction gear train having a sun gear , a carrier having a plurality of planet gears attached thereto, and a ring gear , wherein the sun gear is connected to the low pressure shaft, and the carrier or the ring gear provides an output drive; a propulsive fan mounted fore of the gear train; a fan shafting arrangement comprising a fan shaft which is connected to the output drive of the gear train via a coupling , wherein the coupling includes a connection point to the fan shaft at a first end, and a connection point to the gear train at a second end, and wherein the first end and second end are axially separated and radially separated and the axial separation is greater than the radial separation, and wherein the coupling is torsionally rigid but flexible in the radial direction; the fan shaft having two axially separated bearing locations so as to be supported by a first bearing and a second bearing which are axially separated, wherein the first end of the coupling attaches to the fan shaft between the first and second bearings; characterised in that : the fan shaft further comprises a fan support shaft which passes freely through the sun gear so as to have no direct contact therewith and as such passes through the centre of the gear train along the axis of rotation of the gearbox and fan, and the first end of the coupling attaches to the fan shaft between the first bearing and the gear train, and the second bearing is aft of the gear train. the fan shaft further comprises a fan support shaft which passes freely through the sun gear so as to have no direct contact therewith and as such passes through the centre of the gear train along the axis of rotation of the gearbox and fan, and the first end of the coupling attaches to the fan shaft between the first bearing and the gear train, and the second bearing is aft of the gear train. <EOS>