overdrive148
En-Route
- Joined
- Apr 17, 2013
- Messages
- 3,903
- Location
- Fort Worth, Texas
- Display Name
Display name:
overdrive148
Long story short, I've been checking airspace for solar sites by hand for the last couple hours for work and I started thinking - why does Class E start at 1200' AGL and 700' AGL?
I know why it is shaped the way it is, why it drops down lower in certain areas, etc. But I never stopped to think about why those specific numbers were used. Is it an interesting story like "how railroad gauges today are based on the width of Roman horse chariots" or is it some cut and dry reason of "we needed a number and this is it"?
I know why it is shaped the way it is, why it drops down lower in certain areas, etc. But I never stopped to think about why those specific numbers were used. Is it an interesting story like "how railroad gauges today are based on the width of Roman horse chariots" or is it some cut and dry reason of "we needed a number and this is it"?