Aircraft Pitot Tube Vs. Wing Icing

The airspeed indicator uses the pitot tube. It typically hangs below a wing or against the fuselage of the aircraft. The wings of the aircraft are the primary structures that provide lift, allowing the aircraft to fly.

Pitot Tube Ice

If ice forms over the pitot tube, the airspeed indicator will be inaccurate. The pilot would still have full positive control of the aircraft.

Wing Icing

Ice changes the shape of the wing, which reduces its lift and adds weight to the aircraft. This can create a scenario where the pilot can lose control of the aircraft.

Equipment

Heat melts ice from the pitot tube, and many aircraft have devices on the wings to melt and break ice.

Preflight Precautions

Most airports provide deicing services to remove ice from the aircraft prior to departure.

Flight Precautions

If your aircraft is not capable of flying in known icing conditions, avoid flying anywhere there is visible moisture and freezing conditions.

References

• Federal Aviation Administration: Instrument Flying Handbook
• Federal Aviation Administration: Effect of Icing on Aircraft Control and Systems