Porter at 27000
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Porter at 27000
Twice now I've heard a Porter flight climb to fl 270. Do they have a let from Transport Canada allowing this or are they just ignoring the aircraft limitations ?
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Re: Porter at 27000
They could be ferrying empty. Then they can go above FL250 as long as one of them wears an oxygen mask. They can go up to FL270, the bottom of RVSM airspace.
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Re: Porter at 27000
There was a SB in development for 27000 when I was last browsing Bombardier's portal around a year ago. Check the newsletters.
I think Porter and FlyBE were some of the driving operators behind it. Not sure if it is 'public' yet.
Having said that, heard people do it with ferry flights on Q's and older Dash's with the Press controller in Manual to avoid always bumping off the safety valve.
I think Porter and FlyBE were some of the driving operators behind it. Not sure if it is 'public' yet.
Having said that, heard people do it with ferry flights on Q's and older Dash's with the Press controller in Manual to avoid always bumping off the safety valve.
Last edited by plhought on Fri Jun 30, 2017 9:29 am, edited 1 time in total.
Re: Porter at 27000
"The maximum operating altitude is 25,000 ft (7,600 m) for the standard version, although a version with drop-down oxygen masks is offered, which increases maximum operating altitude to 27,000 ft (8,200 m). "
Source: Wikipedia (so take it for what it is)
Source: Wikipedia (so take it for what it is)
Re: Porter at 27000
If you can somehow find the serial number of the plane in question I can pull up its build option sheet. Haven't seen anything for 27,000' so far. Westjet has the 25,000' option on theirs.
A quick browse shows Porter also went with 25,000' for the planes I've seen so far.
A quick browse shows Porter also went with 25,000' for the planes I've seen so far.
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Re: Porter at 27000
It has nothing to do with being equipped with drop down masks, although they are an option. There is a let that both Jazz and Porter looked into with transport Canada that would allow them to use the existing -402's at 27,000' with no modifications provided they could demonstrate an emergency descent to 14,000' within a given amount of minutes. I forget what the actual figure was, but having flown the Q, I remember thinking it was easily possible and then some.
Like everything, transport wanted an exhorbitant amount of money from the carriers in order to grant said approval, Jazz passed on it citing that the amount of money spent was not worth the amount of money saved. Most legs on the Q at jazz are less than 2.5 hours. I know porter has some really long stretches down to Florida, so maybe for them the extra 2000' was worth it in fuel savings, or not having to make a tech stop.
Like everything, transport wanted an exhorbitant amount of money from the carriers in order to grant said approval, Jazz passed on it citing that the amount of money spent was not worth the amount of money saved. Most legs on the Q at jazz are less than 2.5 hours. I know porter has some really long stretches down to Florida, so maybe for them the extra 2000' was worth it in fuel savings, or not having to make a tech stop.
Re: Porter at 27000
Oh my someone else's feeling got hurtmantogasrsrwy wrote:Nothing to do with snowflakes in this case. Your comment was somewhat dickish and you got called out for it.av8ts wrote:Your right. I forgot about all the snowflakes on here that believe the world is their "safe space"vrefplus5 wrote:Av8ts, IMHO, a more professional and less cynical wording to your questiom could have been... "Twice now I've heard a Porter flight climb to fl 270. Do they have a let from Transport Canada allowing this?"
Accept the light admonishment. You may receive better quality responses if the negative and slurring comment was omitted.
Cheers.
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Re: Porter at 27000
Why wasn't the Q400 certified for FL270 in the first place?
Re: Porter at 27000
Good question. If 2000 feet makes that much of a difference I would think it would be a selling point over the competition.goingnowherefast wrote:Why wasn't the Q400 certified for FL270 in the first place?
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Re: Porter at 27000
To cruise above FL250 (with passengers on board) you are required to have drop down masks.
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Re: Porter at 27000
Do you mind quoting a regulation? I can't seem to find it anywhere. 605.31 talks about oxygen available to crew when above FL250, but nothing about drop down masks for passengers.flyer 1492 wrote:To cruise above FL250 (with passengers on board) you are required to have drop down masks.
Re: Porter at 27000
Not a pro at this but could it be the combination of:goingnowherefast wrote:Do you mind quoting a regulation? I can't seem to find it anywhere. 605.31 talks about oxygen available to crew when above FL250, but nothing about drop down masks for passengers.flyer 1492 wrote:To cruise above FL250 (with passengers on board) you are required to have drop down masks.
http://www.tc.gc.ca/eng/civilaviation/r ... m#525.1447 part (b)
and:
http://laws-lois.justice.gc.ca/eng/regu ... l#s-705.72
?
Re: Porter at 27000
Let's keep things on topic, shall we? I deleted a bunch of irrelevant posts. Thanks, and Happy Canada Day!
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Re: Porter at 27000
CAR 525.1447goingnowherefast wrote:Do you mind quoting a regulation? I can't seem to find it anywhere. 605.31 talks about oxygen available to crew when above FL250, but nothing about drop down masks for passengers.flyer 1492 wrote:To cruise above FL250 (with passengers on board) you are required to have drop down masks.
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Re: Porter at 27000
525.1447Big Pistons Forever wrote:goingnowherefast wrote:Do you mind quoting a regulation? I can't seem to find it anywhere. 605.31 talks about oxygen available to crew when above FL250, but nothing about drop down masks for passengers.flyer 1492 wrote:To cruise above FL250 (with passengers on board) you are required to have drop down masks.CAR 525.1447
Equipment Standards for Oxygen Dispensing Units
If oxygen dispensing units are installed, the following apply:
......
When I retire, I’ll miss the clowns, not the circus.
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Re: Porter at 27000
FL270 gets you above all the classic dash's and ATR's that are truing out at 270kts, It allows a more direct routing with less delays, the fuel is a small but nice side benifit.
Re: Porter at 27000
We are all aware of the benefits of going up to 270. Nobody has answered the original question which in I think gives us the answer
Re: Porter at 27000
Av8ts, I'm going to suggest that the reason you haven't gotten a proper response to your question is that you were mistaken & heard the wrong callsign.....and not once, but twice at that! That's me giving you the benefit of the doubt...that you simply misheard. It happens. Or you may have had some other knotty motive for posing it. I'm not getting into a debate about the veracity of your claim, just that your puzzling allegation is just as odd as someone saying "Twice now I've heard a Westjet/Air Canada/Sunwing/Transat etc. flight climb to FL470. Do they have a let from Transport Canada allowing this or are they just ignoring the aircraft limitations?" Think about that oddity for a minute.
The mods cleaned up the post to try and keep it on track, so just be content with the responses you've generated to date and keep calm. The posters who professionally contributed to this topic did so in good faith, and I suspect your getting frustrated by a lack of anyone taking your bait to discuss....alleged...deliberate limitation exceedances may be off-putting. Don't get too terribly wound up sir/madam, in a rebuttal about snowflakes, etal, I'm just offering you perspective and will now sit back and watch your CRM at play. En garde monsieur/mademoiselle!!
The mods cleaned up the post to try and keep it on track, so just be content with the responses you've generated to date and keep calm. The posters who professionally contributed to this topic did so in good faith, and I suspect your getting frustrated by a lack of anyone taking your bait to discuss....alleged...deliberate limitation exceedances may be off-putting. Don't get too terribly wound up sir/madam, in a rebuttal about snowflakes, etal, I'm just offering you perspective and will now sit back and watch your CRM at play. En garde monsieur/mademoiselle!!