wrxpilot
The proud, the few
- Joined
- Jun 26, 2004
- Posts
- 901
Let's say you're flying a VOR appch at a high altitude airport in Colorado in something like a 172, so your appch speed will be something around 90 kts (category B). The right way to do this would be to get your ground speed to 90 kts. Assuming no wind (TAS = GS), your IAS might be somewhere around 75 kts (25C, 8000 ft).
So what's the real world way of flying this, assuming no DME or GPS to show your groundspeed? Do you fly in at a known pwr setting for some speed (let's assume 90 kts IAS), grab your flight computer, and make a best guess on winds to determine ground speed? Then you'd have to make a best guess at interpolating the category/time table.
It just seems like too much to worry about during the heat of an appch. Obviously an appch using DME or radials for stepdowns and MAP is much better. But I'm just curious to see what more experienced types do if they're using time.
So what's the real world way of flying this, assuming no DME or GPS to show your groundspeed? Do you fly in at a known pwr setting for some speed (let's assume 90 kts IAS), grab your flight computer, and make a best guess on winds to determine ground speed? Then you'd have to make a best guess at interpolating the category/time table.
It just seems like too much to worry about during the heat of an appch. Obviously an appch using DME or radials for stepdowns and MAP is much better. But I'm just curious to see what more experienced types do if they're using time.
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