The ships will then send out a radio message to the effect that they have been sighted by an Allied observation plane.

"Germans don't have no observation planes, not out there."

He sent the observation plane spinning down out of control.

We'd have had reports from the observation planes if even a dozen men were on the roads.

No, you won't be close enough to see ordinance on target, not unless you're in the observation plane.

He had someone up in an observation plane seeing for him and telling over the radio what he saw.

More than a dozen observation planes had gone down that morning, trying to reach that same objective.

It had been four hours since the observation plane had flown over them.

Wood led from the front, often flying in a light observation plane that would land him near the lead elements.