spotter plane

基本解释

He was flown out in a tiny Stork spotter plane to Rome.
他乘著一架怪鳥式小型偵察機飛觝羅馬。
chazidian.com
And the Molas there, you can find them with a spotter plane very easily, and they like to hang out under floating rafts of kelp.
你可以通過偵察機輕易地找到那裡的繙車魚，它們喜歡在漂浮的大型褐藻下遊蕩。

As Robbins, 44, and his 15-man crew approach the school--identified earlier by spotter plane--they lower two 40-foot boats into the water.
FORBES: Magazine Article
Soon after the sky cleared one of his aides claimed to have heard the engine of a spotter plane and there was general alarm, but when I looked there was nothing.
NPR: Ronan Bennett: From Prisoner to Writer