Monday, February 12, 2018

Commonality...

Here are three photos from Sunday afternoon. Like Saturday, there were disruptions for fog, but the flights were arriving and departing by the time I took these [obviously...!].

Can you see the common factor in all of these flights? Can you perhaps explain why? You might need to click on the pictures and look closely.

Airbus A320-232, ZK-OXF, operated by Air NZ

Bombardier DHC-8-315, VH-TQL, operated by Eastern Australia Airlines/ Jetstar

Bombardier DHC-8-311, ZK-NEZ, operated by Air Nelson/ Air NZ

2 comments:

Michael Adams said...

The fog above the wings? Caused by the low pressure air pocket over the wing surface, lower pressure means it hah less capacity to hold moisture resulting in it condensing and forming a cloud. Cool to watch as they fly through a cloud on approach.

Rodney said...

That's sounds pretty good Michael (not that I claim expertise :-) ).

I would add that with the reduction in pressure, there's a reduction in temperature. This causes the air to reach (or fall below) the dew point temperature, resulting in the moisture condensing and becoming visible.

I'm sure some expert will correct me soon enough! Ha ha.