Artillery shell and bomb bursts may be simulated using motion picture techniques by projecting bursts on a projected landscape. To simulate dark colored ground level bursts, a film bearing the image of a burst is moved into focus in the optical system of a landscape projector. Air bursts are simulated in the same way with the additional step of lighting a second film bearing a dust cloud image and which is permanently focused in the optical path of an auxiliary projector. The image projected by the auxiliary system is combined with that of the landscape projector to show an aerial burst having a dust cloud beneath it on the projected landscape.
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