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I don't know either. All I know is that above 1,200-1,500 agl the flight director can only receive information from one air data computer and one nav source. You'd have to ask the engineers at Honeywell or maybe GVFlyer has a good reason. (I hope you didn't just expose a weakness of the Gulfstream product.)Hey Jack,
I have no experience or knowledge of the GIV...just curious what the reason is for the FD to dissapear.
In a plane that sophisticated there is obviously a good reason, I just don't know what it is.
wndshr said:what a tragedy...does that gulfstream model have the coupled flight directors? i know it is usually hardball...right?
i heard a rumor that in the GIV, the flight directors on the non flying pilot side disappear after about 1500' ? is this pretty standard in corporate a/c? or is it a cheaper option?
What exactly do you think 91k would have done in this case? Charter flight...not fractional. 91k only pertains to fractionals.Intreped1 said:91k can't come soon enough.
The registration says it was a G1159A which is a GIII and the serial #449 confirms this. This plane was with Buisness Jet Center at Dallas Love (their 135 certificate is in Tulsa).starchkr said:Alright, now the news says it was a G-III...was it a 2 or 3, anyone know?
Even if he didn't reset his altimeter, that doesn't have any bearing on being below the glideslope. (Unless he was shooting a VOR approach).rvsm410 said:Its possible he did not reset the altimeter to the local pressure, or the wrong ILS freq was being used...there are lots of things that should have had him higher...but the WX was reporting a broken ceiling of 100' mayb he was searching for the runway lights and got to low while looking?
you can see by the above mentioned TAFS and Metars that the weather was improving later in the morning, thus the traffic/news helo in the air over the crash site.....to bad 135 ops dont "require Dispatchers" its "possible" a dispatcher could have prevented this accident and not allowed the crew to go to IAH in the first place......
God Bless them and there Families.....as usualy we should really allow the investigators tell us what happened.....
satpak77 said:just some questions. Not second guessing two dead pilots, whose families will have a sad Christmas, but every aviation accident I ask "what happened" and "what if" and try to learn something from it
As stated by some others, if an accident happens while shooting an approach it is shut down until the FAA does a flight check on that approach. I would assume that they shot the ILS since the Vor approach is still up and running.Pilot124 said:ILS OTS
Here is the approach plates for VOR/DME 4
http://www.myairplane.com/databases/approach/pdfs/00198VD4.PDF
starchkr said:Yes they can take off with the weather 0/0 at destination, they can also shoot an approach with 0/0 if they wish. I rememeber reading awhile back a story where the guy went down the approach 0/0 and continued past DH to land without ever seeing the runway and he was legal because he was 91...and he had the "ba!!s" to do it. Is this still true, can you continue all the way to touchdown if 91 without ever seeing the runway? If so that could lead to another reason an aircraft could get so low on an approach with false signals. I don't know, i just think it is fishy that they would have most likely had their radar altimeter on, their ILS tuned in, their DME's tuned(ILS), two altimeters tuned (even if set incorrectly, still not enough to be 1000'+ low at that point on the approach), and if equipped a GPWS blaring at them, plus lets add in that we have heard nothing of the tower questioning them about their altitude that far out on the approach (wether it be an ILS or a VOR/DME). Hopefully the boxes will tell the story, they were both recoverred yesterday.
True...the view from the cockpit is nice, but it would be pretty hard for any pilot to PROVE he could see a half mile...just as it would be hard for the FEDS to prove he couldn't.Vik said:You can legally shoot the approach as Part 91, but you CANNOT land unless you have 1 of 10 items in sight. Its in FAR Part 91.
If you do and a fed catches you, I guess its his word against yours whether you saw anything or not.
The 135 companies that I've worked for all had policies regarding minimums, flight times, and duty times, that specified that even if we are empty we treat it as a 135 flight. A couple I worked for didn't specify that, but they were freight operations where 99% of all legs were revenue anyways. As far as I remember it, if you are positioning TO a revenue trip(without a legal rest period between the repo and revenue trip) then you are 135. If you are positioning at the end of a duty day, it's a 91 trip - but cannot be considered rest.2000flyer said:Its been many many years since I flew 135, but aren't positioning legs operated under Part 91? If so, the weather can be reported as 0/0 and you can shoot the approach all day long.