"Ace Pilot" wrote in message
om...

common use is doing T&Gs in the pattern below 700 feet AGL when the
weather is marginal. Other uses?

1. The altitude where controlled airspace begins can be a factor for an IFR
pilot selecting an airport at which to fly an instrument approach if he is
concerned about airplanes legally flying a traffic pattern 1 foot below him
when he breaks out of a cloud.

2. In areas with unusual and predictable weather patterns, i.e. a very thin
marine fog layer, some pilots depart IMC in Class G airspace in anticipation
of breakout out on top into VMC conditions before entering controlled
airspace -- not necessarily wise but legal nonetheless.


--
Richard Kaplan, CFII

www.flyimc.com