Visible crew/equipment: As Blue Thunder performs its loop just before the bad guy's helicopter is destroyed, there is a shot of him looking around in his helicopter. In this shot you can see the camera helicopter reflected in the glass.
Visible crew/equipment: When Blue Thunder approaches the chicken shack, you can see an entire camera crew on the roof of the building across the street. (01:31:45)
Visible crew/equipment: When Richard approaches Frank while he's closing the locker, the shadow of the cameraman moving is visible on Richard's back. (00:37:53)
Visible crew/equipment: The helicopters are flying low above the streets chasing each other. Several forward looking shots show no to very little traffic, and one blatantly shows two cops directing traffic away from the set of the film.
Chosen answer: There was plenty of time from Lymangood asks what Jafo means to when he gets killed. For all we know it could have been weeks. It was only a simply question really. As for any connection between blue thunder and Thor, it could have been an in-joke, but only the filmmakers really know.
Gavin Jackson