It's getting cold out there. Are you ready for winter flying?

1. 1) Why does your airplane have better performance on a cold winter day, as opposed to a hot summer day?

   Cold air is more dense than hot air, which makes your engine, propeller, and wings more effective.

   Cold air is more dense than hot air, which makes your engine, propeller, and wings more effective.

   1. Boldmethod

      
   2. Boldmethod

      
2. 2) On average, one inch of rain is equivalent to how many inches of snow?

   According to the National Weather Service, on average, 1 inch of rain is equal to 10 inches of snow.

   According to the National Weather Service, on average, 1 inch of rain is equal to 10 inches of snow.

   1. Boldmethod

      
   2. Boldmethod

      

   1. Boldmethod

      
   2. Boldmethod

      
3. 3) You need to fly through visible moisture to get carburetor ice.

   You don't need to be in visible moisture to pick up carb ice. You only need humidity in the air, and the right temperature range (which can be above freezing).

   You don't need to be in visible moisture to pick up carb ice. You only need humidity in the air, and the right temperature range (which can be above freezing).

   1. Boldmethod

      
   2. Boldmethod

      
4. 4) Sun dogs form by sunlight passing through:
   Gopherboy6956 / Wikipedia

   Sun dogs form by sunlight passing through suspended ice crystals. 

   Sun dogs form by sunlight passing through suspended ice crystals. 

   1. Boldmethod

      
   2. Boldmethod

      

   1. Boldmethod

      
   2. Boldmethod

      
5. 5) You just cancelled your flight because ice pellets started falling during your preflight. The temperature at the airport is 28 degrees F. What is the temperature of the air above the airport?

   Ice pellets form from snowflakes or rain falling through an above-freezing layer, then falling through a freezing layer of air before impacting the ground.

   Ice pellets form from snowflakes or rain falling through an above-freezing layer, then falling through a freezing layer of air before impacting the ground.

   1. Boldmethod

      
   2. Boldmethod

      
6. 6) How much can frost reduce your wing's maximum lift?
   WireLizard

   According to the FAA, frost can reduce your wing's max lift by up to 30%.

   According to the FAA, frost can reduce your wing's max lift by up to 30%.

   1. Boldmethod

      
   2. Boldmethod

      

   1. Boldmethod

      
   2. Boldmethod

      

Well, that could have gone better...

You scored % Better luck next time!

Nice work, you have most of this winter flying down.

You scored %

Your winter weather knowledge: Expert

You scored %. Nice work!