05-5143 —

Nice shot Brian!

Nice catch!

thanks guys

Great shot! Always wondered what a jet looks like doing that.

thanks alan

Beautiful angle!

Looks like it's thirsty & needs a drink.

WoW, this is a cool shot!

Nice job.

What is happening here?

This is caused by a low pressure area created as the air accelerates into the engine nacelle. As the air increases in velocity the air pressure drops which lowers the temperature of the air. Once the air temperature falls below the dew point of air the moisture condenses into the " cloud " you see. This happens rather easily in humid conditions since the air is already very close to its dew point. This is also what causes wingtip vortices to form on the low pressure areas of wingtips, flaps, etc.