PPRuNe Forums

Go Back   PPRuNe Forums > Flight Deck Forums > Tech Log
Forgotten your Username/Password?

Tech Log The very best in practical technical discussion on the web


Closed Thread
 
Thread Tools
Old 7th Mar 2001, 17:54   #1 (permalink)
CaptSensible
Guest
 
Posts: n/a
Question 737-200 crosswind limits

Anyone tell me what they are (wet and dry)? Thanks.
 
Old 8th Mar 2001, 00:45   #2 (permalink)
Avro'ansome
Guest
 
Posts: n/a
Wink

These are for a B737-300. My guess is that the -200 limits would be pretty similar. ( I could of course be outrageously incorrect in that!!)

Braking action Good =35kts ( >.4)
Braking action Med/good =30kts ( .39-.36)
Braking action Medium = 25kts ( .35-.30)
Braking action Med/poor = 20kts ( .29-.26)
Braking action poor = 15kts ( <.25)

Boeing suggest a max windspeed for taxying of 65kts, I think some Ryan drivers misread that as a min forward speed for taxying ??


 
Old 8th Mar 2001, 00:55   #3 (permalink)
CaptSensible
Guest
 
Posts: n/a
Post

Thanks for that, but what I really need are the specific Wet and Dry limits per Mr.Boeing...I'll explain why later.
 
Old 8th Mar 2001, 19:33   #4 (permalink)
Cough
Guest
 
Posts: n/a
Post

-200

Max crosswind
T/O Dry - 40kt Landing Dry - 40kt
T/O Wet - 25Kt Landing Wet - 40kt

All assume no contamination

C.......ough
 
Old 9th Mar 2001, 00:23   #5 (permalink)
CaptSensible
Guest
 
Posts: n/a
Arrow

OK, thanks Cough. That's what I thought...about the same for wet T/O as the 737-3/4/5 (i.e. 25kts wet).

A few days ago I was on the ramp at Cork airport when a B737-200 departed with winds that were reported by the tower as 120/30 gusting 40 (in lashing rain).
That equates to a crosswind of 23 (mean) or 30 (gust) on runway 17 (wet).

I suppose the airline in question must use the mean value only in assessing crosswind. If not they were outside limits.

Interestingly no-one else (including the other 737 on the ramp) was moving.

So whats the SOP in your airline? When calculating crosswind, must you use mean wind or gust?



[This message has been edited by CaptSensible (edited 08 March 2001).]
 
Old 9th Mar 2001, 15:58   #6 (permalink)
fireflybob
Guest
 
Posts: n/a
Post

When I last flew the B737-200 the max demonstrated crosswind component in the CAA Flight Manual was 29 kt.
What operators choose to specify in their Ops Manuals is another matter!
From a liability point of view I suggest taking the most adverse case! From a command point of view use some common sense!

------------------


[This message has been edited by fireflybob (edited 09 March 2001).]
 
Old 9th Mar 2001, 16:27   #7 (permalink)
Jambo Buana
Guest
 
Posts: n/a
Post

The last time I flew out of Cork in a -200 the limit for my company was / is 20kts wet, 30kts dry. Gust is not taken into account, which is bloody stupid! And if I hear another moron say that "I will land / takeoff in between the gusts" I will brain them. There is change in the air over this one, I can assure you!


-------------------------------
Any channce of a flight deck visit?
 
Old 9th Mar 2001, 16:39   #8 (permalink)
Bearcat
Guest
 
Posts: n/a
Post

Remember that incident at SNN when Futura when off the rwy with strong x/winds. The a/c that landed 15 mins ahead in these condts was a 732, the next one went around as the winds were outside its airline limits obviously. The airline I think you are refering to obviously has their own limits that not even Boeing knows
 
Old 9th Mar 2001, 21:41   #9 (permalink)
CaptSensible
Guest
 
Posts: n/a
Arrow

Maybe they have no wet limits?

A Fokker 50 went off that same runway just a few months ago as a result of aquaplaning in high crosswinds...and the wind was within their limits! The particular runway is badly drained, and is prone to water pooling (especially around the intersection).

Given the experience that this airline has in operating into Cork surely their pilots know of the risks? So why do pilots put their licence (not to mention lives) on the line by ignoring the risk? Will their company stand by them when they put their a/c off the runway and are found to have broken the limits?
It's a sad way to end your career.

I just don't get it.
 
Old 10th Mar 2001, 12:45   #10 (permalink)
Bearcat
Guest
 
Posts: n/a
Post

I agree but with respect to the FK incident that happened within limits, but if you know the FK it is the most unforgiving piece of junk laterally on wet rwys and strong crosswinds and has the charachteristics of a shopping trolley. Nice airplane in good conditions but in a gale and a wet rwy its a bucket of puke and ones work only begins when you are on the rwy keeping her straight! Iwas on it for nearly 3 years and had never trusted it. Even when you are about to take off prior to brake release, a strong gust of wind would lift the nose off the ground
 
Old 11th Mar 2001, 01:42   #11 (permalink)
Tom the Tenor
Guest
 
Posts: n/a
Wink

As Jambo Buana suggests let us hope they get working on their wet x-wind limits soon. In a place like EICK with so much wind & rain you cannot expect that you will remain lucky indefinitely. Things might be better if RW 25/07 was the long runway. Capt Sensible, have there been company/union representations to Aer Rianta Cork about the poor draining on 17/35 and the sizeable lodgemnts at the intersection? Aer Rianta is so flush with cash that doing some corrective work should not be too much of a burden on the coffers. Of course, the Shannon crowd might cry foul but that is another day's work! Thank you, TTT.

------------------
What we want is a bit of Pop Music, none of this Beethoven!!
 
Closed Thread
 
 
 


Thread Tools


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. The time now is 22:27.


vBulletin® v3.8.7, Copyright ©2000-2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
1996-2012 The Professional Pilots Rumour Network