You can see from this shot taken at 10am how dark it was in the morning at times with frequent rain showers coming in from the West, this is a good spot for lineups on runway 13 when the weather is good and the sun is behind from early afternoon onwards.

My D60 settings for this were ISO 100 1/90th at F5.6, not too good to say the least but it's the chance that you take on going somewhere for the day but I wasn't too discouraged as it was still early in the day with plenty of time for the weather to improve.