0 2 2 4 4 6 6 8 8 10 10 knots winter 5 0 6 0 70 $_{ }$8 0 9 0 1 0 k n o t s $_{ }$S A L T O 0 2 2 4 4 6 6 8 8 10 10 knots winter 5 0 6 0 70 $_{ }$8 0 9 0 1 0 k n o t s $_{ }$S A L T O 0 2 2 4 4 6 6 8 8 10 10 knots winter 5 0 6 0 70 $_{ }$8 0 9 0 1 0 k n o t s $_{ }$S A L T O Downwind side Upwind side Wave steady lift $_{S}$m o t h w a v e  To wpat h  Wind Variometer indications Foehn cloud Turbulent rotor Rotor Release Wave lift Rotor cloud Strong wind Moderate wind Figure 10-34.  Variometer indications during the penetration into the wave. Figure 10-35.  Possible release and separation on a wave tow. Flying in the Wave Once the wave has been contacted, the best techniques for  utilizing the lift depend on the extent of the lift (especially  in the direction along the ridge or mountain range producing  the wave) and the strength of the wind. The lift may initially  be weak. In such circumstances, be patient and stay with the  initial slow climb. Patience is usually rewarded with better  lift as the climb continues. At other times, the variometer  may be pegged at 1,000 fpm directly after release from tow. adjust speed so that the glider remains in the strong lift. The  best lift is found along the upwind side of the rotor cloud or  just upwind of any lenticulars. In the best-case scenario, the  required speed is close to the glider’s minimum sink speed.  In quite strong winds, it may be necessary to fly faster than  minimum sink to maintain position in the best lift. Under those  conditions, flying slower allows the glider to drift downwind  (fly backward over the ground) and into the down side of  the wave. This can be a costly mistake since it is difficult  to penetrate back into the strong headwind. When the lift is  strong, it is easy to drift downwind while climbing into stronger  winds aloft, so it pays to be attentive to the position relative to  If the wind is strong enough (40 knots or more), find the  strongest portion of the wave and point into the wind, and  10-20