Continuity mistake: In the scene on the bridge when Frank's girlfriend gets pulled over, the cop on the driver side has his gun drawn. It changes between angles. From the outside it's a standard issue 38. From the inside looking out it's a .357 magnum.
Continuity mistake: When Lymangood is running away from the car he crashes in to a bike and his hands and arms are free, not tied at all.
Continuity mistake: Before Frank destroys the Thunder it's daytime - a few moments later it's completely dark.
Continuity mistake: When the Thunder is shown for very first time the sun is barely rising, but at the time it gets to the training field the sun is high like it's noon.
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.
Character mistake: Following Lymangood's death, police dispatch radios a BOLO on Murphy, identifying his vehicle as a 1979 Trans Am. However Murphy drives a Turbo Trans Am, only available in 1980 and 1981. Dispatch should have all of his data available.
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