Matthew
This is the exif of this pictures if it helps:
FOR THE FIRST ONE:
Date Taken: 2005-02-27 17:01:10
Date Digitized: 2005-02-27 17:01:10
Date Modified: 2005-02-27 17:01:10
Make: Canon
Model: Canon PowerShot S70
Size: 2304x3072
Bytes: 2308971
Aperture: f/5.6
Focal Length: 7.28125mm (guess: 25mm in 35mm)
Exposure Time: 0.002s (1/500)
JPEG Quality: 5
Flash: Flash did not fire, compulsory flash mode
Exposure Bias: 0
DigitalZoomRatio: 3072/3072
SensingMethod: One-chip color sensor
ColorSpace: sRGB
FOR THE SECOND ONE:
Date Taken: 2005-02-27 16:56:28
Date Digitized: 2005-02-27 16:56:28
Date Modified: 2005-02-27 16:56:28
Make: Canon
Model: Canon PowerShot S70
Size: 3072x2304
Bytes: 2311131
Aperture: f/5.6
Focal Length: 5.8125mm (guess: 20mm in 35mm)
Exposure Time: 0.0012s (1/800)
JPEG Quality: 5
Flash: Flash did not fire, compulsory flash mode
Exposure Bias: 0
DigitalZoomRatio: 3072/3072
SensingMethod: One-chip color sensor
ColorSpace: sRGB
Also, I have luck that the plane window was clean and without a lot of scratches as usual. I try to put the lens of the camera as closer to window as I can. If you look at the exif, you can see the exposure time is very fast. The plane is moving very very fast, and normally the clouds are moving too, so you have to shot fast, this two shots are 2 of 20 or more. Because in others I get reflections on the window, movement, etc.
Depending on the situation, you have to see what its best for your photos, wich mode you have to use. As I see in this post and in another you have too an S70, use it in the Automodes, then look the diferences in the exif of each one. Try shot different situations, using automode, to see what the camera make in each photo. Try to understand it. Why the camera did or did not use flash, why the camera shot to fast or to slow, try to remember what the light conditions where. Once you understand a little bit about how it works, try the creative zone (tv, av, etc), and try to adjust the values as you like, or thought.
Here in the forums, and in other pages, are a lot of tutorials, in how to use this functions, light conditions, movement, etc.
Cheers.