Context :

Aims : We attempt to understand the driving mechanism of a macrospicule and its relationship with a coronal jet .

Methods : We study the dynamics of a macrospicule and an associated coronal jet captured by multi-spacecraft observations .
Doppler velocities both in the macrospicule and the coronal jet are determined by EIS and SUMER spectra .
Their temporal evolution is studied using X-ray and He ii \lambda 304 images .

Results : A blueshift of -120 \pm 15 km s ^ { -1 } is detected on one side of the macrospicule , while a redshift of 50 \pm 6 km s ^ { -1 } is found at the base of the other side .
The inclination angle of the macrospicule inferred from a stereoscopic analysis with STEREO suggests that the measured Doppler velocities can be attributed to a rotating motion of the macrospicule rather than a radial flow or an expansion .

Conclusions : The macrospicule is driven by the unfolding motion of a twisted magnetic flux rope , while the associated X-ray jet is a radial outflow .