провести глубокое(тщательное) исследование (Before you invest in this company, you should look under the hood and find out more about their products and sales revenue. VLZ_58)
с применением шторок(An expression indicating that the pilot is using a hood to restrict visibility outside the cockpit while simulating instrument flight. An instrument-rated pilot is required in the other control seat while this operation is being conducted Alexander Demidov)