jetcareers

Go Back   jetcareers > Career Specific > Air Traffic Control

Closed Thread
 
Thread Tools Display Modes
Old February 14th, 2007, 00:20   #1
jrh
Old Skool
 
jrh's Avatar
 
Join Date: Apr 2005
Location: USA
Posts: 1,712
Default Special VFR clearance criteria

I'm curious, when issuing a special VFR clearance to an aircraft, what criteria do controllers need to meet?

I'm assuming the criteria is different for radar vs. non-radar environments, but could somebody give me specifics?

Also, how does it work to coordinate SVFR and IFR traffic? Like, say, an airport is in IFR conditions (maybe, 1000 overcast and two miles visibility) and an aircraft calls up wanting an SVFR clearance to come in and land. At the same time, an IFR aircraft wants to shoot an approach. Is this a problem? Again, does radar vs. non-radar make a big difference? How about if the controller has radar, but the SVFR aircraft does not have a transponder?

Another question, is it possible to get a SVFR clearance over a long distance (say, 50 miles)? If an aircraft wants to transit one facility's airspace and continue on to another's, do the controllers just coordinate that with each other as they would when providing radar advisories? How about in a non-radar environment?

Finally, if a pilot wants to get an SVFR clearance from an FSS specialist over the phone, how does that work? Is it just a matter of the specialist calling the nearest ATC facility and relaying the clearance from a controller?

Sorry for so many questions...I'm trying to get a good understanding of what happens "behind the scenes" so to speak, and what goes in to getting an SVFR clearance made up. I'm trying to figure out scenarios when it's quite likely I could get an SVFR clearance without problems, as well as scenarios when I can't count on going SVFR.
jrh is online now  
Old February 14th, 2007, 19:04   #2
fly8slep
Senior Member
 
fly8slep's Avatar
 
Join Date: Jul 2006
Location: unemployment
Posts: 341
Default Re: Special VFR clearance criteria

Special VFR is voluntary for the controller, obviously if there is an in coming IFR they're not going to let you in. AlsoVFR pilots should only be using this procedure under extraordinary circumstances. If you need to use special VFR you probably didn't plan right. However in an emergency such as deteriorating weather SVFR is nice to have. Day you have to remain clear of clouds and night you need instrument rating for a special VFR.
fly8slep is online now  
Old February 14th, 2007, 22:43   #3
jrh
Old Skool
 
jrh's Avatar
 
Join Date: Apr 2005
Location: USA
Posts: 1,712
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by fly8slep View Post
Special VFR is voluntary for the controller, obviously if there is an in coming IFR they're not going to let you in. AlsoVFR pilots should only be using this procedure under extraordinary circumstances. If you need to use special VFR you probably didn't plan right. However in an emergency such as deteriorating weather SVFR is nice to have. Day you have to remain clear of clouds and night you need instrument rating for a special VFR.
Fly8slep, are you a controller? I don't mean this in a sarcastic way, it's a legit question.

You say obviously a controller won't let you in if there is IFR traffic in the area. Why is that? How would it be different than an incoming VFR flight with an IFR flight? What I'm getting at is, what makes the difference? Weather conditions? Radar contact? Also, what do you mean by a controller letting you "in"? In to what? SVFR is used in Class E airspace and Class E is generally quite extensive...I can't imagine a plane getting denied an SVFR clearance because of IFR traffic 30 miles away, yet in the same Class E airspace.

You also say SVFR is for "extraordinary" circumstances. I disagree. I think it's a great tool for many fairly mundane circumstances. I wouldn't necessarily say it should be used just for fun, but it certainly helps get a job done (ferrying aircraft, giving flight instruction, etc.). But that's from my perspective as a pilot. If controllers think differently, I'd certainly like to hear their impression of when SVFR should or shouldn't be used.
jrh is online now  
Old February 14th, 2007, 22:54   #4
bdhill1979
Old Skool
 
bdhill1979's Avatar
 
Join Date: Aug 2006
Location: U77
Posts: 2,300
Send a message via Yahoo to bdhill1979
Default Re: Special VFR clearance criteria

SVFR requires an instrument rating, day or night (FAR 91.157 which refers to FAR 61.65)
Edit: upon further reading the aircraft must meet IFR equipment requirements also 91.205.
bdhill1979 is offline  
Old February 15th, 2007, 00:02   #5
jrh
Old Skool
 
jrh's Avatar
 
Join Date: Apr 2005
Location: USA
Posts: 1,712
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by bdhill1979 View Post
SVFR requires an instrument rating, day or night (FAR 91.157 which refers to FAR 61.65)
Edit: upon further reading the aircraft must meet IFR equipment requirements also 91.205.
No, for daytime operations, the instrument rating is not needed.

To go SVFR at night, the pilot and aircraft most both be instrument certified (although the pilot does not need to be instrument current).

Read the reg again very closely.
jrh is online now  
Old February 15th, 2007, 00:16   #6
bdhill1979
Old Skool
 
bdhill1979's Avatar
 
Join Date: Aug 2006
Location: U77
Posts: 2,300
Send a message via Yahoo to bdhill1979
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by jrh View Post
Read the reg again very closely.
You are right, daytime does not require IR, Nighttime needs IR and the aircraft must meet IFR requirements.
bdhill1979 is offline  
Old February 15th, 2007, 01:04   #7
meritflyer
Old Skool
 
Join Date: Dec 2005
Location: Winchestertonfieldville
Posts: 6,245
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by bdhill1979 View Post
You are right, daytime does not require IR, Nighttime needs IR and the aircraft must meet IFR requirements.

Correctamundo.
__________________
The simplest answer tends to be correct.
meritflyer is offline  
Old February 15th, 2007, 13:33   #8
av8rmsu
Senior Member
 
Join Date: Aug 2003
Location: Pickwick Lake
Posts: 448
Default Re: Special VFR clearance criteria

SVFRs are used for class B, C, D, and E SURFACE AREAs...not airways.

it is a tool to enter a surface area as stated above, from the less restricted G airspace. when on an airway...the normal vfr cloud clearances always apply.

IFR traffic has priority over SVFR traffic, but normally the "controllers" will work it out. i.e. the artcc controller will give the the tower the tower the airspace ten minutes for a svfr arrival.

1 mile flight visibility is needed to get a svfr clearance. otherwise an emergency has to be declared to receive one.

No, i'm not a controller.

Yes, i've used svfrs many times.
av8rmsu is offline  
Old February 15th, 2007, 13:56   #9
BajtheJino
Senior Member
 
BajtheJino's Avatar
 
Join Date: Feb 2007
Location: Country Inn and Suites
Posts: 966
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by fly8slep View Post
If you need to use special VFR you probably didn't plan right. However in an emergency such as deteriorating weather SVFR is nice to have.
I'm not trying bust balls here-but in many parts of the country SVFR is the only way in and out during marginal weather due to terrain restrictions. Think a'boot the little guys.
BajtheJino is offline  
Old February 15th, 2007, 14:47   #10
jrh
Old Skool
 
jrh's Avatar
 
Join Date: Apr 2005
Location: USA
Posts: 1,712
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by av8rmsu View Post
SVFRs are used for class B, C, D, and E SURFACE AREAs...not airways.
What about for Class E airspace that begins at 700 AGL, or the usual 1200 AGL? Can SVFR not be used in those areas?
jrh is online now  
Old February 15th, 2007, 15:20   #11
tgrayson
Old Skool
 
Join Date: Sep 2006
Location: Memphis, TN
Posts: 2,110
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by jrh View Post
What about for Class E airspace that begins at 700 AGL, or the usual 1200 AGL? Can SVFR not be used in those areas?
Nope.
__________________
Core Concepts of Flight

If an error is corrected whenever it is recognized as such, the path of error is the path of truth

--Hans Reichenback
tgrayson is offline  
Old February 18th, 2007, 11:16   #12
SpiraMirabilis
Senior Member
 
SpiraMirabilis's Avatar
 
Join Date: Jun 2006
Posts: 1,122
Default Re: Special VFR clearance criteria

I was under the impression if you were cleared for SVFR into a terminal area they blocked the entire terminal area (class D,C) airspace for IFR traffic for 30 minutes. Am I remembering something wrong or just FOS?
SpiraMirabilis is online now  
Old February 18th, 2007, 11:32   #13
subpilot
Senior Member
 
subpilot's Avatar
 
Join Date: Apr 2005
Location: Afghanistan
Posts: 679
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by SpiraMirabilis View Post
I was under the impression if you were cleared for SVFR into a terminal area they blocked the entire terminal area (class D,C) airspace for IFR traffic for 30 minutes. Am I remembering something wrong or just FOS?
They may clear the whole terminal area for class E surface area but I know for a fact that they do not clear the area in class D, C, or B. They just sequence you in like normal. I used SVFR alot in Fresno, CA and it is not dangerous at all as long as you respect the situation and know your personal limit.
__________________
Together We Served

"Helicopters don't actually fly. They just beat the air into submission." -Firebird2XC
subpilot is offline  
Old February 18th, 2007, 14:26   #14
tgrayson
Old Skool
 
Join Date: Sep 2006
Location: Memphis, TN
Posts: 2,110
Default Re: Special VFR clearance criteria

Quote:
Originally Posted by SpiraMirabilis View Post
I was under the impression if you were cleared for SVFR into a terminal area they blocked the entire terminal area (class D,C) airspace for IFR traffic for 30 minutes. Am I remembering something wrong or just FOS?
According to the 7110.65:
<----------------------------------------->
a. Apply approved separation between:
1. SVFR aircraft.
2. SVFR aircraft and IFR aircraft.

<----------------------------------------->
In general, it appears that SVFR aircraft are treated similarly to IFR aircraft, except for:
<------------------------>
a. SVFR flights may be approved only if arriving and departing IFR aircraft are not delayed.

NOTE-
The priority afforded IFR aircraft over SVFR aircraft is not intended to be so rigidly applied that inefficient use of airspace results. The controller has the prerogative of permitting completion of a SVFR operation already in progress when an IFR aircraft becomes a factor if better overall efficiency will result.

<------------------------>
__________________
Core Concepts of Flight

If an error is corrected whenever it is recognized as such, the path of error is the path of truth

--Hans Reichenback
tgrayson is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


All times are GMT -4. The time now is 14:22.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.1.0
©2008 jetcareers.com