Thread: Cloud Flying
View Single Post
  #8  
Old August 24th 06, 04:56 AM posted to rec.aviation.soaring
Fox Two
external usenet poster
 
Posts: 44
Default Cloud Flying

Snoop,

That's more like it: specific questions. It appears to me that you are
making this way too difficult. Here we go:

snoop wrote:

Chris,

Specifically, where does the clearance begin, and end. ATC is going to
want a starting point and an exit point.


What is your intended task? If you're going from A to B and landing at
B, then file from A to B. Most glider cross-countries start and end at
the same place, so file from A to A via B and C. You can amend your
clearance at any time. If you don't think you can make B, just tell
ATC and request clearance to C, or back to A or to a new destination D.
In short, just tell them what you want to do!

Going back to my earlier note,
how do you get up and down? The cloud layer closes in below you while
your going x country IFR in a pure glider, how do you legally get down.


I'm not sure I understand your question. Your initial clearance is
going to have an altitude block. Throughout your flight, you will
amend this clearance both up and down. I've had clearances which had
8,000 foot deep altitude blocks!

You are coming down somewhere, I don't have an argument there, but ATC
has a big manual called the TERPS Manual that they have to operate by.
It is their ball and chain that they operate by, and if they've issued
us a clearance, they have some pretty tight parameters that they want
us to fly by in their airspace.


TERPS means Terminal Instrument Procedures. Do you seriously intend to
fly an ILS in a glider? I didn't think so. Likewise, DP's STAR's and
all other IAP's are irrelevant to IFR gliders. Gliders need to depart
and arrive under VFR. TERPS doesn't apply.

Let's say that your here at my club in Texas. My specific question here
would be how would you file the route portion. Let's say you use a fix
near TSA to start. Now, how do I file the altitude? A block is probably
the best way, as you mentioned, but how do you guarantee your local
controllers that your going to remain in that block, especially if the
bottom fills in below you while your cruising. This is why I'm a bit
suspect that there are some loose ends to flying gliders IFR, from a
totally legal standpoint.


As for filing your route, just file direct. For altitude, file for
your estimated max altitude. In the remarks section, write: Glider
flight. Will require course deviations and block altitudes from ATC.

Yes, you must remain within the parameters of the clearance. So, you
shouldn't accept a clearance that you can't comply with. If you're at
5,170 feet and scratching in weak lift, do not accept an altitude
clearance that requires you to remain above 5,000 feet! Likewise, if
you've encountered unexpected sink, advise ATC that you will need a new
altitude clearance. It all comes down to COMMUNICATION!


I beg to differ that it is nothing like flying an airplane IFR.


90% of flying an airplane IFR includes VMC departures and arrivals,
with only a few moments in IMC conditions. Just like a glider.


Thanks for the input


You're welcome. Now let me add this: to safely fly a glider in IFR
conditions, the pilot must be able to walk and chew gum at the same
time. Flying a glider effectively on a cross-country is challenging.
Flying single-pilot IFR is challenging. Flying a glider on a
single-pilot IFR cross-country is extremely challenging. Prerequisites
should include many recent hours in both glider cross-countries and IFR
procedures.

At the risk of speaking for others, glider pilots that fly IFR have
huge personal weather minimums. They won't consider flying IFR unless
they are certain that they will be able to cancel IFR and continue to
their destination under VFR with a significant safety margin. Most
pilots will file IFR with no intention of ever flying into a cloud.
Instead, they want to be able to fly closer to the cloud than the
minimum distances required for VFR. Most IFR cross-countries are in
mountain waves, and the risk of going from clear and a million to
suddenly being engulfed in a thick cloud is real. Being on an IFR
flight plan is a safety measure.

Finally, nothing can substitute for good judgment. IFR in gliders can
be a valuable tool, but it can easily kill you. Don't even think of
doing it unless you are certain that there is no risk from doing it.
Actually, your criteria should be the opposite: do it only if you think
it is the safer option.

Chris Fleming, F2
ATP B-767, CFI-G