Helicopter flies under a bridge?

Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?

Best,
-cwk.

On Tue, 09 Nov 2004 17:00:07 GMT, "C Kingsbury"
wrote in
.net::

Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?

That's a good question.

It would seem that the regulation that prohibits flight within 500' of
structures might apply.

"Larry Dighera" wrote in message
...

Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?


That's a good question.

It would seem that the regulation that prohibits flight within 500' of
structures might apply.


If you're referring to FAR 91.119(c), it does not apply to helicopters.

Steven P. McNicoll wrote:

It would seem that the regulation that prohibits flight within 500' of
structures might apply.



If you're referring to FAR 91.119(c), it does not apply to helicopters.



Provided they aren't a hazard to the stuff on the surface.

"Ron Natalie" wrote in message
m...
Steven P. McNicoll wrote:

It would seem that the regulation that prohibits flight within 500' of
structures might apply.


If you're referring to FAR 91.119(c), it does not apply to helicopters.

Provided they aren't a hazard to the stuff on the surface.


That goes without saying.

On Tue, 09 Nov 2004 18:46:13 GMT, "Steven P. McNicoll"
wrote in
.net::


"Larry Dighera" wrote in message
.. .

Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?


That's a good question.

It would seem that the regulation that prohibits flight within 500' of
structures might apply.


If you're referring to FAR 91.119(c), it does not apply to helicopters.


Thanks for looking that up.

So it would seem that FAR 91.119(d) might apply in this case. But
without knowing whether there was hazard to persons or property, it's
difficult to reach a definitive conclusion.




91.119 Minimum safe altitudes: General.
top
Except when necessary for takeoff or landing, no person may operate an
aircraft below the following altitudes:

(a) Anywhere. An altitude allowing, if a power unit fails, an
emergency landing without undue hazard to persons or property on the
surface.

(b) Over congested areas. Over any congested area of a city, town, or
settlement, or over any open air assembly of persons, an altitude of
1,000 feet above the highest obstacle within a horizontal radius of
2,000 feet of the aircraft.

(c) Over other than congested areas. An altitude of 500 feet above the
surface, except over open water or sparsely populated areas. In those
cases, the aircraft may not be operated closer than 500 feet to any
person, vessel, vehicle, or structure.

(d) Helicopters. Helicopters may be operated at less than the minimums
prescribed in paragraph (b) or (c) of this section if the operation is
conducted without hazard to persons or property on the surface. In
addition, each person operating a helicopter shall comply with any
routes or altitudes specifically prescribed for helicopters by the
Administrator.

"Larry Dighera" wrote in message
...

If you're referring to FAR 91.119(c), it does not apply to helicopters.


Thanks for looking that up.


Looking what up?



So it would seem that FAR 91.119(d) might apply in this case.


Since this case involves a helicopter FAR 91.119(d) definitely applies.



But without knowing whether there was hazard to persons or property, it's
difficult to reach a definitive conclusion.


I don't see why. Two questions were asked, seems to me the answers are
"Yes" and "None, as long as the operation is conducted without hazard to
persons or property on the surface."

"Steven P. McNicoll" roncachamp@ wrote:

Since this case involves a helicopter FAR 91.119(d) definitely applies.
------

Not necessarily.

If the operation was conducted under Part 135, then 91.119(d) does not apply
and is replaced by 135.203(b).

PJ

"C Kingsbury" wrote in message hlink.net...
Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?

I don't see why not. In some cases even airplanes can. We used to fly
the sea plane under a large mountain bridge all the time. Of course we
made sure to land and take off just short of the bridge so its for the
purpose of take off or landing. The briges was probably almost 1000
feet above the water though.
Gotta love the Sierras.
-Robert

For Part 91 operations see,
91.119
(a) Anywhere. An altitude allowing, if a power unit fails, an emergency
landing without undue hazard to persons or property on the surface.
&
(d) Helicopters. Helicopters may be operated at less than the minimums
prescribed in paragraph (b) or (c) of this section if the operation is
conducted without hazard to persons or property on the surface.

For Part 135 operations see,
135.203
(b) A helicopter over a congested area at an altitude less than 300 feet
above the surface.

= = = = = = = = =

Basically, it depends on if the bridge was over a congested area or not and
if so whether it was a Part 91 or Part 135 operation and if either, whether
the operation could be performed (without hazard to persons or property on
the surface.)

Now that's a pretty ambiguous statement, (without hazard to persons or
property on the surface.) Some would argue that the simple fact of flying
over people on the surface creates a hazard to said people. Personally I
don't by it and luckily *most* in the legal arena don't either.

Bottom line is, you *might* be legal, but would it be justified? Used to be
a time in the US where if it was legal, it was justified, but unfortunately
now days, it's not so black and white anymore.

One thing about helicopters -vs- airplanes is they have historically always
(until a couple years ago in Hawaii under Part 135) enjoyed almost no
restrictions on visibility or obstacle/terrain clearance. So things you see
a helicopter doing are legal, when you wouldn't be legal doing the same
thing in your airplane.

Happy flying,
PJ

= = = = = = = = = = = = = = = = =

"C Kingsbury" cwkingsbury@ wrote in message
link.net...
Is it legal for a helicopter to fly under a bridge? What are the obstale
clearance limits?

Best,
-cwk.