Private Pilot Flight Training and Instruction Flight Training Article Library | Back To 4VFR.COM Fitting The Hood The hood should be fitted prior to engine start. Note that the attitude indicator has both a wings level and a level index mark at its top. The 10, 20, and 30 degree bank marks have been pointed out during Dutch-rolls and banks. A plane will not turn if the wings are level. This means that whenever the heading indicator is fixed on a heading the plane is not turning and wings can be considered level. Knowing this will enable you to perform even stalls under the hood. When the attitude indicator is at level, heading will be constant. Confirm this with the heading indicator. The turn coordinator has the ability to show both the direction of the turn and markings that index the 2 minute standard rate turn. The vertical speed indicator will either indicate false or excessive movement under abrupt control input and may have up to a 12 second lag. The altimeter also may lag. The accuracy of the instruments is proportional to the smoothness of any change. The use of sound indexes acquired from VFR flight will help clue you in on airspeeds and changes. Written by Gene Whitt Flight Training Article Library | Back To 4VFR.COM