One embodiment comprises a fairing assembly adapted to couple to a vehicle, the assembly comprising: a support arm mountable to a frame rail of a vehicle and a fairing adapter adapted to mount a fairing to the support arm. The fairing adapter is rotatably coupled to the support arm and is rotatable from a first orientation corresponding to an aerodynamic position to a second orientation corresponding to a first access position. The fairing adapter may also be rotatable to a third orientation corresponding to a second access position. The assembly further comprises a manually releasable lock to lock the fairing adapter in the first orientation and releasable to allow the fairing adapter to rotate to the second orientation or the third orientation.