text: Another factor to consider in turning flight 
  is the effect of sideslip. 
  If the turn is not coor- 
  dinated to hold sideslip to a minimum, addi- 
  tional drag will be incurred due to the sideslip. 
  The use of the flaps and landing gear can 
  greatly affect the performance of the multi- 
  engine airplane when a powerplant is inopera- 
  tive. Since the extension of the landing gear 
  and flaps increases the parasite drag, maximum 
  performance of the airplane will be obtained 
  with airplane in the clean configuration. 
  In 
  certain critical conditions, the extension of the 
  landing gear and full 
  flaps may create a defi- 
  ciency of thrust at any speed and commit the 
  airplane to descend. This condition is illus- 
  trated by the second graph of figure 6.8. Thus, 
  judicious use of the flaps and landing gear is 
  necessary in the case of an engine failure. 
  When critical conditions exist due to failure 
  of a powerplant, the pilot must appreciate the 
  reduced excess thrust and operate the airplane 
  within specific limitations. 
  If the engine-out 
  performance of the airplane is marginal, the 
  pilot must be aware of the very detrimental 
  effect of steep turns.. Due to the increased load 
  factor in a coordinated turn, there will be an 
  increase in stall speed and-of greater import- 
  ance to engine-out performance-an 
  in induced drag. The following 
  trates the effect of bank angle on stall speed 
  and induced drag. 
  
  increase 
  
  table illus- 