Interesting 757/767 trivia

derg

derg

Apparently a "terse" writer
Staff member
The 757/767 can't track a raw VOR radial. Only a LOC or a RNAV track.

And you can't even manually tune a VOR on the -400 I think.

Now back to your regularly scheduled programming.
 
Wow, seriously? Interesting. We use raw VOR data ALL the time. Of course, we aren't approved for RNAV approaches (yet). I'm sure with IRS it is different, but if we don't have the predictive RAIM for our arrival airport, an RNAV approach is out of the question.
 
We can "build" a VOR radial, but legally ave to monitor it with raw data, it's weird.

Can the Embraer do RNP RNAV approaches?
 
RNP, no. We can do Type 1 and Type 2 (formerly Type B and Type A, respectively) approaches only. Our crews aren't trained to do them though at this moment, so we can't do them at all. But the airplane is capable. I wish we could do them, especially in PSP, but that is not going to happen anytime soon! In fact, we just removed all the RNAV approach charts from our Jepps to reduce weight (among other reasons).

There is one thing I wish our airplanes had, and it isn't autothrottles/VNAV. It is a HUD! I'd like to have CATIIIa capability! :D
 
My captain's off the -800 and every once in a while he occasionally says stuff like "We had a HUD on the -800 and we used to..." followed by a "shaddup!" from me or the instructor! :)

A little extra trivia, last night's instructor is a 2000 Southernets hire, but a former Chautauqua Jetstream driver.
 
I haven't heard anything juicy most of the week as we've been working "D periods" for the last four days.

But just the standards of Jet Blue/Largest single order in Boeing history/787's/cancelled all vacations for 767 instructors (true) for the summer.
 
Do you have RNP RNAV approaches on the 76? Lower than .3? I'm just curious who else does them in then US. I'm a true believer in the RNP RNAV. In my short time here so far there have been several times we would not have gotten into an airport without the RNP approaches.

We weren't able to do any GPS/RNAV approaches at Skywest. Every approach was raw data FAF inbound. Can any of the regionals do GPS/RNAV approaches? You would think that with GPS approaches popping up everywhere, the airlines would clue in and get approved.
 
Yes and no. We're only approved at this point for VFR-only RNAV RNP approaches, but approval is coming within days/weeks.

However, when the system is finally turned on for IFR usage, we're good down to RNP .15

They're slicker'n goose poop, especially when you're doing the Quito, Ecuador approach.

We have a really good system, but since it's in it's primacy, you've really got to play "Sea Lawyer" to work it out. It's all brand new to me as I'm a former mad dog driver.
 
OH is approved for RNAV approaches but you have to go through a whole bunch of mumbo, jumbo to do it. Doug if you guys are approved to do RNAV DP's and STARS why not approaches?
 
We can do RNAV approaches, but an RNAV "RNP" is a different beast entirely.
 
Soul Brotha' said:
OH is approved for RNAV approaches but you have to go through a whole bunch of mumbo, jumbo to do it. Doug if you guys are approved to do RNAV DP's and STARS why not approaches?
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Don't you have to have like receive 5-6 sats instead of three inorder to do an RNAV?
 
Cheechako said:
We weren't able to do any GPS/RNAV approaches at Skywest. Every approach was raw data FAF inbound. Can any of the regionals do GPS/RNAV approaches? You would think that with GPS approaches popping up everywhere, the airlines would clue in and get approved.
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Actually, we do GPS/RNAV approaches in the Brasilia all the time......especially Inyokern and Sun Valley where that's all there is. We can't do the RNP stuff though...something about the FMS we have being too cheap or something.......
 
Actually, we do GPS/RNAV approaches in the Brasilia all the time......especially Inyokern and Sun Valley where that's all there is. We can't do the RNP stuff though...something about the FMS we have being too cheap or something.......
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Oh, yeah, forgot about those. . . never flew there, though. Most of my Brasilia flying was PDX/SEA.

Interesting thing about these RNAV approaches, when we're established on a published segment, LNAV, VNAV PATH, we dial the altitude alerter to field elevation: ZERO most places we're doing these. It took some time fighting off the previous training to dial that thing into the ground!
 
H46Bubba said:
Don't you have to have like receive 5-6 sats instead of three inorder to do an RNAV?
Click to expand...

You have to check the RAIM once you first know that you are doing a RNAV approach. Then once again about 30 NM out. I would have to check the Flight Standz manual, but I think there is another RAIM/SAT check you have to do. I did one back in NOV of last year as a NFP so it's been a minute. The NFP is very busy doing these approaches. Doug RNAV RNP, do you have to be checked out in the sim to do them?
 
On this side of the Missip' dispatch checks the satellite coverage and includes that in our paperwork. There are times of the day that we can't do RNP .15 because there aren't enough visible satellites. I've only seen it as being a couple minutes during the day. Outside that, we don't check for number of satellites received. We check for two GPS signals and monitor ANP vs. RNP to make sure we're inside the pipe.
 
At ASA we are approved to do GPS/RNAV approaches, SID, and STAR's. We are NOT able to do the RNP stuff. In fact, as per our procedures, even if we do a VOR approach the airplane is flown using white needles (PNF moniters the green needles). NDB both pilots are in white needles with RMI needle pulled up to "verify". If for some reason we need to track a VOR radial we can, but 95% of the time you just "build" a radial using the FMS...much easier.
 
cime_sp said:
At ASA we are approved to do GPS/RNAV approaches, SID, and STAR's. We are NOT able to do the RNP stuff. In fact, as per our procedures, even if we do a VOR approach the airplane is flown using white needles (PNF moniters the green needles). NDB both pilots are in white needles with RMI needle pulled up to "verify". If for some reason we need to track a VOR radial we can, but 95% of the time you just "build" a radial using the FMS...much easier.
Click to expand...


Wow, you guys are in white data on VOR approaches? I know you said it's per ops procedures, but do you know why?
 
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