this embodiment activation of the shape memory alloy wire 70 would cause simultaneous contraction of the shape memory alloy wire and expansion of the bias spring to deploy the airflow control member 62 as opposed to compressive process shown in previous embodiment discussed immediately above deactivation of the shape memory alloy wire would result in the bias spring pseudoplastically deforming the shape memory alloy wire to retract the airflow control member within the housing 62 a seal can be disposed about the slot opening in fig6 and 7 a spoiler 80 is shown in the retracted and deployed positions respectively the spoiler 80 includes a housing 82 having a bottom wall 84 a top wall 86 and sidewalls 88 the housing 52 further includes a slot opening 90 in which an airflow control member 92 is slidably engaged therewith the slot opening 90 extends to the bottom wall and includes a shoulder 94 distally located from the top surface 86 the airflow control member 92 has a generally planar shape and is slidably engaged with the slot opening an active material 96 e g shape memory alloy wire is tethered at one end to the airflow control member 92 and at the other end to the bottom wall 84 within the housing 82 the shape memory alloy wire 96 is configured to.