1 of 3, Aircraft icing loss of control

Part 1 of 3.
NASA produced video on icing induced loss of control due to tail stall.

3 paths lead to tail stall conditions if there is ice on the tail:
-Flaps,
-Speed,
-Power.

There is usually no clue about it until a configuration change.

To recover from an ice-induced tail stall, you must take actions that are almost completely opposite from those required to recover from a wing stall. Making the wrong moves will aggravate the stall.

At low altitudes you may not be able to recover.

Visit NASA's "A Pilot's Guide to In-Flight Icing"
http://aircrafticing.grc.nasa.gov/courses_inflight.html#

Category:

Autos & Vehicles

Tags:

• commercial
• airplane
• airline
• crash
• ice
• icing
• colgan
• continental
• connection
• nasa
• buffalo
• 3407

[scowley86]

@zaphr89 noo thats not what i meant.. I meant prop mounted on the wing, and in addition to that, jet fans mounted on the empenage.

[VideoGameCoupons]

@TheJmz1983 wow

[mbodude2012]

lossofcontrollossofcontrolloss­ofcontrol

[clontsdollie]

awesome video .. love it!! great talent =)

[MrSecretlevel]

Airline pilots should completely ignore this video. No current Part 121 plane is subject to tail stalls. If you feel a stall, push forward.

[TheJmz1983]

save lives got it in one

[debiassi]

Icing will occur based on the outside air temperature and will generally occur in the temperature range of +2 to -20c. The type of icing will be dependant upon the amount of water present in the cloud and the OAT. The most hazardous formations will accrete at warmer temps ie closer to freezing and the most hazardous will therefor be SLD supercooled large droplets freezing drizzle and freezing rain. The temp decreases in the ISA at 1.98.c per 1000ft so icing will occur all year round

[killurpig]

And, expanding on that - Carb icing can occur within that temperature range, but with no visible moisture. Because of the hourglass shape of most float type carburetors icing can occur 0 - 80F and 50% or more humidity.

When encountering carb ice a pilot will notice a slight drop in RPM with the throttle in a static position. If carb heat is applied the rpm will drop again (due to the ice melting and water being burned off) then steadily increase back to cruise RPM.

[killurpig]

To expand on that - as defined by the FAA; Aircraft icing can happen at any altitude in any air condition when the relative air temperature is between 0 and 80F and there is visible moisture. Yup, that means icing CAN happen on a pleasant summer day, flying through a cloud. This is because as the airfoil moves through the air, the venturi effect that creates lift also cools the air as it flows over the airfoil. So even though its 75 degrees outside. Your wing might think its 20.

[syeager9]

mysatellitea40,

This is a good question. Icing can occur in temperatures well above 0 C. It depends on the presence of super cooled water droplets in the air that can quickly cool the skin to below freezing and start sticking on.