charter dog
Rabid member
- Joined
- Mar 19, 2006
- Posts
- 179
Back to the basics of yesteryear!
With no apparrent indicators of surface wind conditions such as airport wind indicators, dust, smoke, wind shadows on water surfaces, flags or the like, circling overhead will at least give an idea of the general wind direction and velocity at your circling altitude of perhaps 1,500' AGL. Keep in mind that terrain contours can cause the wind to be quite different at the surface. If none of these things provide any definitive indications of significance, it may be because there is little or no wind!
At this point, you might consider an approach to the most suitable looking runway. Consider length, width, gradient and obstructions. If during that approach, the groundspeed seems excessive, a large crab angle is required or if it seems unusually difficult to descend at a normal angle without building excessive airspeed, climb to pattern altitude, select a different landing direction and repeat as necessary. You should have a pretty good idea what's going on while still a couple hundred feet above the runway. During your flyby, if required, you may catch sight of the missing visual cues that were not visible at altitude.
Unless the need to get on the ground is urgent, there is plenty of time and no hurry. With a little practice, reading surface wind signs from the air becomes second nature and the initial landing direction selected will be correct most of the time. When it is not, the visual cues and indications during the approach should alert you to the discrepancy. We're always ready to go around if some measure of the progress of the approach isn't right, right?
So yes, it is perfectly acceptable to land at a place where the determination of wind direction and velocity is left to your own powers of observation and judgement. In reality, we do this every time we land, whether reports are provided or not.
Be careful, but be sure to enjoy the adventure!
Edited to add that Waldom posted his fine comments while I was composing mine. Apologies for any repitition!
Best,
With no apparrent indicators of surface wind conditions such as airport wind indicators, dust, smoke, wind shadows on water surfaces, flags or the like, circling overhead will at least give an idea of the general wind direction and velocity at your circling altitude of perhaps 1,500' AGL. Keep in mind that terrain contours can cause the wind to be quite different at the surface. If none of these things provide any definitive indications of significance, it may be because there is little or no wind!
At this point, you might consider an approach to the most suitable looking runway. Consider length, width, gradient and obstructions. If during that approach, the groundspeed seems excessive, a large crab angle is required or if it seems unusually difficult to descend at a normal angle without building excessive airspeed, climb to pattern altitude, select a different landing direction and repeat as necessary. You should have a pretty good idea what's going on while still a couple hundred feet above the runway. During your flyby, if required, you may catch sight of the missing visual cues that were not visible at altitude.
Unless the need to get on the ground is urgent, there is plenty of time and no hurry. With a little practice, reading surface wind signs from the air becomes second nature and the initial landing direction selected will be correct most of the time. When it is not, the visual cues and indications during the approach should alert you to the discrepancy. We're always ready to go around if some measure of the progress of the approach isn't right, right?
So yes, it is perfectly acceptable to land at a place where the determination of wind direction and velocity is left to your own powers of observation and judgement. In reality, we do this every time we land, whether reports are provided or not.
Be careful, but be sure to enjoy the adventure!
Edited to add that Waldom posted his fine comments while I was composing mine. Apologies for any repitition!
Best,
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