Obstacle avoidance between take-off and airway

On Jan 13, 12:28 pm, Sam Spade wrote:
[...]
Oops! My bad. I didn't look carefull and thought I was responding to a
pilot.

Yet you continue replying...

Jon wrote:

On Jan 13, 12:28 pm, Sam Spade wrote:

[...]
Oops! My bad. I didn't look carefull and thought I was responding to a
pilot.


Yet you continue replying...

I know, the devil makes me do it.

On Jan 14, 9:57 pm, Sam Spade wrote:
Jon wrote:
On Jan 13, 12:28 pm, Sam Spade wrote:

[...]
Oops! My bad. I didn't look carefull and thought I was responding to a
pilot.

Yet you continue replying...

I know, the devil makes me do it.

No I didn't

Mxsmanic wrote:
Yesterday I tried to plan a flight from Big Bear City (California) to Santa
Monica, in a Bonanza. The routing I worked out was L35..DAWNA.V8.PDZ.V186
TIFNI.ELMOO.DARTS..KSMO. DAWNA is on a portion of the airway that shows a MEA
of 10500 on the chart. Since I was westbound, I figured to climb to 12000. I
planned to depart from runway 26. My calculations showed that the Bonanza
could carry out this climb.

My question is: How do I make sure that I don't hit anything between the
runway and the first fix on my filed route? The ODP for Big Bear only gives
details for runway 8, and says "N/A" for runway 26. The only departure
procedure is an obstacle departure, also for runway 8. So what's the proper
way for me to plan a flight so that I don't run into anything between the time
I leave runway 26 and the time I reach DAWNA? Should I use a VFR sectional?
Is there something on en-route IFR charts that I'm missing? Did I overlook
something in the Instrument Procedures Handbook (it seems surprisingly vague
on this)?

To get the extra altitude, carry your computer to the 2nd floor and plug
it in.

KC

Mxsmanic wrote:
Yesterday I tried to plan a flight from Big Bear City (California) to Santa
Monica, in a Bonanza. The routing I worked out was L35..DAWNA.V8.PDZ.V186
TIFNI.ELMOO.DARTS..KSMO. DAWNA is on a portion of the airway that shows a MEA
of 10500 on the chart. Since I was westbound, I figured to climb to 12000. I
planned to depart from runway 26. My calculations showed that the Bonanza
could carry out this climb.

My question is: How do I make sure that I don't hit anything between the
runway and the first fix on my filed route? The ODP for Big Bear only gives
details for runway 8, and says "N/A" for runway 26. The only departure
procedure is an obstacle departure, also for runway 8. So what's the proper
way for me to plan a flight so that I don't run into anything between the time
I leave runway 26 and the time I reach DAWNA? Should I use a VFR sectional?
Is there something on en-route IFR charts that I'm missing? Did I overlook
something in the Instrument Procedures Handbook (it seems surprisingly vague
on this)?

If no instrument departure gradients are published in a departure
procedure, then the default gradient requirement applies, which is 200
ft/NM.

John

J.Kahn writes:

If no instrument departure gradients are published in a departure
procedure, then the default gradient requirement applies, which is 200
ft/NM.

OK, thanks.

It looks like IFR departures from runway 26 in L35 aren't allowed at all, so I
suppose I'll have to depart from runway 8 in the future if I really want to
depart IFR. Odd that there's nothing for runway 26 since it leads right over
the lake.

On Jan 14, 11:04*am, Mxsmanic wrote:
J.Kahn writes:
If no instrument departure gradients are published in a departure
procedure, then the default gradient requirement applies, which is 200
ft/NM.

OK, thanks.

It looks like IFR departures from runway 26 in L35 aren't allowed at all, so I
suppose I'll have to depart from runway 8 in the future if I really want to
depart IFR. *Odd that there's nothing for runway 26 since it leads right over
the lake.

No, the procedure is not authorized on runway 26.

-robert

Mxsmanic wrote:
J.Kahn writes:

If no instrument departure gradients are published in a departure
procedure, then the default gradient requirement applies, which is 200
ft/NM.

OK, thanks.

It looks like IFR departures from runway 26 in L35 aren't allowed at all, so I
suppose I'll have to depart from runway 8 in the future if I really want to
depart IFR. Odd that there's nothing for runway 26 since it leads right over
the lake.


So you can be grounded by unfavorable winds... that sucks.

I wonder if the reason is simply that departure in that direction
doesn't meet 200 ft/NM at some distance out, maybe 10 or 20 miles, but
the FAA has not got around to doing the required survey to arrive at a
specified departure gradient requirement so they just declare it NA
until someday they get around to it. I believe that you have to be
able to have obstacle clearance with 200 ft/NM out to 22 NM from the
runway before you have to have a specified gradient other than default,
which gets you to 4400 HAA.

John

On Jan 14, 3:59*pm, "J.Kahn" wrote:

I wonder if the reason is simply that departure in that direction
doesn't meet 200 ft/NM at some distance out, maybe 10 or 20 miles, but
the FAA has not got around to doing the required survey to arrive at a
specified departure gradient requirement so they just declare it NA
until someday they get around to it. * I believe that you have to be
able to have obstacle clearance with 200 ft/NM out to 22 NM from the
runway before you have to have a specified gradient other than default,
which gets you to 4400 HAA.

The 200 ft/nm applies to departure procedures that do not otherwise
specify a minimum climb gradient. Absent a departure procedure the
pilot is free to make up any procedure he sees fit. The FAA has not
come close to visiting every airport and creating DPs for every runway
out there.

-robert, CFII

Robert M. Gary wrote:

On Jan 14, 3:59 pm, "J.Kahn" wrote:


I wonder if the reason is simply that departure in that direction
doesn't meet 200 ft/NM at some distance out, maybe 10 or 20 miles, but
the FAA has not got around to doing the required survey to arrive at a
specified departure gradient requirement so they just declare it NA
until someday they get around to it. I believe that you have to be
able to have obstacle clearance with 200 ft/NM out to 22 NM from the
runway before you have to have a specified gradient other than default,
which gets you to 4400 HAA.


The 200 ft/nm applies to departure procedures that do not otherwise
specify a minimum climb gradient. Absent a departure procedure the
pilot is free to make up any procedure he sees fit. The FAA has not
come close to visiting every airport and creating DPs for every runway
out there.

-robert, CFII

That is misleading. For a runway at an IFR airport that has NA, they
have looked at it. Shame on you for not knowing that.