I haven't seen anything on specific timing but I read they will be looking suitable terrain (flat with no large dangerous rocks, but enough small rocks for the

I haven't seen anything on specific timing but I read they will be looking suitable terrain (flat with no large dangerous rocks, but enough small rocks for the helicopter's vision system to register) to fly in as the rover drives. There's also no provision for the rover to pick the helicopter back up as far as I know, so they will be stuck in the same place during the 30 day test campaign. Given that and given the "proof of concept" nature of the helicopter I imagine there might be a desire to start getting data back from the rover's main scientific instruments before deploying the helicopter.