Maintaining VFR altitudes when following N/S roads/rivers

In article ,
Lou wrote:

Why would you follow a road? If you want to follow a road, drive a
car.
Why would you follow a river, rivers end.
Why not fly the plane?

An aircraft without DME, LORAN, and GPS may wish to stay out of the Boston
Class Bravo airspace. An excellent way to do that is follow 495 around Boston.
For those that want the torture, I know it can be done with just one VOR.

--
Bob Noel
(goodness, please trim replies!!!)

Bob Noel writes:

An aircraft without DME, LORAN, and GPS may wish to stay out of the Boston
Class Bravo airspace. An excellent way to do that is follow 495 around Boston.
For those that want the torture, I know it can be done with just one VOR.

I see that the 495 is almost north-south (magnetic) in some portions. How do
you manage your altitude when flying that portion of the highway?

A more difficult situation arises when the highway meanders substantially back
and forth from east to west, constantly crossing 360 or 180 degrees. If it's
in hilly country (as it might well be if it has to meander back and forth),
just setting a single heading might not be an option, as you can easily lose
sight of the highway. So, in that case, how does one manage altitude?

Mxsmanic wrote in
:

Bob Noel writes:

An aircraft without DME, LORAN, and GPS may wish to stay out of the
Boston Class Bravo airspace. An excellent way to do that is follow
495 around Boston. For those that want the torture, I know it can be
done with just one VOR.

I see that the 495 is almost north-south (magnetic) in some portions.
How do you manage your altitude when flying that portion of the
highway?

A more difficult situation arises when the highway meanders
substantially back and forth from east to west, constantly crossing
360 or 180 degrees. If it's in hilly country (as it might well be if
it has to meander back and forth), just setting a single heading might
not be an option, as you can easily lose sight of the highway. So, in
that case, how does one manage altitude?


You're an idiot


Bertie