Additional crewmembers as required will be added at the discretion of the commander, in accordance with pertinent Department of the Army regulations. Operating limitations and ranges are illustrated by the colored markings which appear on the dial faces of engine, flight, and utility system instruments. Red markings on the dial faces of these instruments indicate the limit above or below which continued operation is likely to cause damage or shorten life. The green markings on instruments indicate the safe or normal range of operation. The yellow markings on instruments 'indicate the range when special attention should be given to the operation covered by the instrument.
Operation is permissible in the yellow range, but is time limited.
The blue markings on instruments indicate recommended maximum IAS for autorotation. Limitation markings consist of strips of semi-transparent color tape which adhere to the glass outside of an indicator dial. All round instruments that have range markings on glass face must also have a white slippage mark between glass and frame. All other limitation markings are painted on dial faces under glasses. The maximum and minimum markings are half red and half white as indicated in figure 5-1, with the red portion of the marking farthest from the limitation.