so.. only 63ft tall.. and in your workds 1/16th the distance, so get the
point... 1000ft is pleanty,

And you are not a pilot so how do you know what is sufficient and what is
not.

B

"Mxsmanic" wrote in message
...
BT writes:

How tall is the airliner.. with the gear retracted.. lower engine cowls
to
top of rudder..
150ft ft? 200ft?

Even with gear extended, a 747-400 is 63 feet high--about 1/16 of the
separation distance. That's very roughly the relationship of one inch
to one foot, if you want to visualize it.

1000ft is pleanty of room.

I don't know that it's plenty, but with the right equipment, it's
sufficient.

--
Transpose mxsmanic and gmail to reach me by e-mail.