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Integral Airstairs  
User currently onlineBMI727 From United States of America, joined Feb 2009, 15749 posts, RR: 27
Posted (5 years 8 months 2 days 3 hours ago) and read 5384 times:

I have a few questions about integral airstairs?
1. Can the Airbus 320 series be equipped with them? I've never seen one with them, but they would certainly be useful.
2. I seem to remember hearing that some airline (SY?) removed some from 737s. I want to know if a 737 built without them can be retrofitted with an integral airstair.
3. Are any widebodies other than the VC-25s and Il-86s equipped with them on the lower deck? Can they be retrofitted and are any of the VIP 747s going to get them?


Why do Aerospace Engineering students have to turn things in on time?
8 replies: All unread, jump to last
 
User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 1, posted (5 years 8 months 2 days 3 hours ago) and read 5364 times:



Quoting BMI727 (Thread starter):
3. Are any widebodies other than the VC-25s and Il-86s equipped with them on the lower deck? Can they be retrofitted and are any of the VIP 747s going to get them?

They were an option on the L-1011.


User currently offlineJER757 From United Kingdom, joined Jun 2006, 350 posts, RR: 0
Reply 2, posted (5 years 8 months 2 days 1 hour ago) and read 5317 times:



Quoting BMI727 (Thread starter):
1. Can the Airbus 320 series be equipped with them? I've never seen one with them, but they would certainly be useful.

If they were going to be so useful surely they would be a factory option? Airstairs (esp on the 737) are pretty complex when you see them folding in/out. An A320 is a fair bit higher than the 737 so I'm guessing an even more complicated system would be req to get them in?

Quoting BMI727 (Thread starter):
2. I seem to remember hearing that some airline (SY?) removed some from 737s. I want to know if a 737 built without them can be retrofitted with an integral airstair.

In the UK WW has definitely removed them, saving 177kg (http://www.b737.org.uk/history.htm). I'm sure there'll be others. Not sure about retrofitting them; I'm guessing it'd be more money/hassle than its worth for the airline.

Most operators seem to cope fine without them!



Gale force fog... don't you love it?
User currently onlineBMI727 From United States of America, joined Feb 2009, 15749 posts, RR: 27
Reply 3, posted (5 years 8 months 1 day 8 hours ago) and read 5197 times:

I forgot that the Airbii are higher than the 737. Most airlines dont need them for sure, but I was thinking that they would be useful for many charter airlines that fly to smaller airports or use FBOs on a regular basis, not to mention planes in VIP/corporate shuttle service.


Why do Aerospace Engineering students have to turn things in on time?
User currently onlineCanadianNorth From Canada, joined Aug 2002, 3390 posts, RR: 9
Reply 4, posted (5 years 8 months 1 day ago) and read 5114 times:

I'd say any aircraft probably could get an STC for airstairs if someone was willing to throw enough cash at it...


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What could possibly go wrong?
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 5, posted (5 years 8 months 21 hours ago) and read 5075 times:

If one is considering load penalties seriously & fuel economy....between 150-200kgs of weight saved is a big deal.
regds
MEL.



Think of the brighter side!
User currently onlineViscount724 From Switzerland, joined Oct 2006, 25459 posts, RR: 22
Reply 6, posted (5 years 8 months 20 hours ago) and read 5071 times:



Quoting JER757 (Reply 2):
In the UK WW has definitely removed them, saving 177kg (http://www.b737.org.uk/history.htm). I'm sure there'll be others. Not sure about retrofitting them; I'm guessing it'd be more money/hassle than its worth for the airline.

Most operators seem to cope fine without them!

Ryanair appear to have forward airstairs on their 737-800s, probably because they serve many airports with minimal ground support equipment, or they don't want to pay to use it.


User currently offlineN737AA From United States of America, joined Aug 2008, 270 posts, RR: 0
Reply 7, posted (5 years 8 months 3 hours ago) and read 4984 times:

I've done lots of mods removing them, but don't recall ever adding them.

User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 8, posted (5 years 7 months 4 weeks 1 day 17 hours ago) and read 4898 times:



Quoting Viscount724 (Reply 6):
Ryanair appear to have forward airstairs on their 737-800s, probably because they serve many airports with minimal ground support equipment, or they don't want to pay to use it.

On B737s,there are two systems of operations,The Auto has a lot of sequencing switches & safety locks,The Standby is with the sequencing switches.These switches can be a problem if one does not work.

regds
MEL.



Think of the brighter side!
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