What are the main differences between a side slip and a forward slip?

Question

Do you use flaps ? If so when.

Answer 1

Rudder control.

In one, the aircrafts axis is skewed to its track.

In the other, not.

You'll learn them for crosswind landings.

Answer 2

Basically, a forward slip is used to lose altitude and a side slip is used to correct for a cross wind during final approach and landing. In a side slip, the wing is dipped into the wind which requires rudder to used to align the nose with the runway. Forward slips use rudder and opposite aileron.

Answer 3

A forward-slip is useful when a pilot has set up for a landing approach with excessive height or must descend steeply beyond a treeline to touchdown near the start of a short runway. Assuming that the runway is properly lined up the forward slip will allow the aircraft track to be maintained while steepening the descent without adding excessive airspeed. Since the heading is not aligned with the runway, the slip must be removed before touchdown to avoid excessive side loading on the landing gear, and if a cross wind is present an appropriate side slip may be necessary at touchdown as described below.

The sideslip also uses opposite aileron and rudder, In this case it is entered by lowering a wing and exactly enough opposite rudder so the airplane does not turn (maintaining the same heading), while adding airspeed as required.

In the slideslip condition, the airplane's longitudinal axis remains parallel to the original flightpath, but the airplane no longer flies straight along its original track. Now, the horizontal component of lift forces the airplane to move sideways toward the low wing.