Are you ready for cold weather operations?

1. 1) What is the process where gas bypasses the liquid state and transitions directly to a solid?

   When frost forms, moisture in the air adheres directly to the aircraft surface as a solid. This process is called deposition. 

   When frost forms, moisture in the air adheres directly to the aircraft surface as a solid. This process is called deposition. 

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2. 2) What performance issues are a result of frost on aircraft surfaces?

   Frost formation will increase stall speed, reduce lift, and increase drag.

   Frost formation will increase stall speed, reduce lift, and increase drag.

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3. 3) Frost formation on the wing increases _______.

   When frost is present, it creates a rough layer on the surface of the aircraft. This increases skin friction drag.

   When frost is present, it creates a rough layer on the surface of the aircraft. This increases skin friction drag.

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4. 4) Frost on your aircraft can cause stall speed to increase by _____.
   

   According to the FAA, frost formation on the aircraft surface can increase the stall speed of your aircraft by 5%-10%.

   According to the FAA, frost formation on the aircraft surface can increase the stall speed of your aircraft by 5%-10%.

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5. 5) What conditions are favorable for frost formation on the ground?

   According to the FAA, clear skies, stable air, and light winds are most favorable for frost formation on the ground.

   According to the FAA, clear skies, stable air, and light winds are most favorable for frost formation on the ground.

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