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Does Low Climb Rate Means More Turbulences?  
User currently onlineLY777 From France, joined Nov 2005, 2612 posts, RR: 2
Posted (7 years 3 months 2 weeks 1 day 17 hours ago) and read 1753 times:

We have talked a lot about airplanes climb rates, but does a low climb rate mean more turbulences in bad weather conditions? I mean, if the plane climbs slowly, it will stay longer in turbulent clouds!What do you think?


אמא, אני מתגעגע לך
5 replies: All unread, jump to last
 
User currently offlineWarren747sp From United States of America, joined Feb 2004, 1136 posts, RR: 0
Reply 1, posted (7 years 3 months 2 weeks 1 day 12 hours ago) and read 1661 times:

Of course, the sooner you can clear the clouds layers,etc. the sooner you have smoother air. Of course you can enjoy the view longer if you are a novice flyer.


747SP
User currently offlineThrottleHold From South Africa, joined Jul 2006, 651 posts, RR: 1
Reply 2, posted (7 years 3 months 2 weeks 1 day 12 hours ago) and read 1630 times:

Quoting Warren747sp (Reply 1):
Of course, the sooner you can clear the clouds layers,etc. the sooner you have smoother air

Clouds aren't always turbulent. Some of the worst turbulence is in the clear air around a jetstream, found at higher altitudes.
There's no point in climbing fast if you're only going up into a turbulent layer.


User currently offlineFly727 From Mexico, joined Jul 2003, 1789 posts, RR: 19
Reply 3, posted (7 years 3 months 2 weeks 1 day 9 hours ago) and read 1516 times:

The importance here is not how fast or slow you get out of turbulent air but how FAST the airplane flies through it and the effect the speed has over the structure.

Most airplanes have a turbulence penetration speed. One which guarantees the structural integrity of the aircraft, provides stall safety margins and gives most passenger comfort. It is often slower than the regular cruising and fast climb mode speed, so in order to achieve it, pilots have to decrease speed in level flight, or if they are climbing increase the rate of it keeping the same amount of thrust to make the speed decrease a bit and obtain the desired turbulent or maneuvering speed.

RM  Smile



There are no stupid questions... just stupid people!
User currently offlineRyanair737 From , joined Dec 1969, posts, RR:
Reply 4, posted (7 years 3 months 2 weeks 1 day 8 hours ago) and read 1462 times:

Quoting LY777 (Thread starter):
We have talked a lot about airplanes climb rates, but does a low climb rate mean more turbulences in bad weather conditions? I mean, if the plane climbs slowly, it will stay longer in turbulent clouds!

Exactly, you have answered your own question there.

Quoting ThrottleHold (Reply 2):
There's no point in climbing fast if you're only going up into a turbulent layer.

Hmm..., I would see no point in delaying the climb rate if that was the case. ATC require a certain rate of climb (especially in busy airspace) to meet level restrictions on the way up. By purposely climbing in a slow rate you would firstly be using much more fuel and secondly you would be flying the aircraft in an uneconomical way, a way that it wouldn't like to be flown.

Ryanair737


User currently offlineThrottleHold From South Africa, joined Jul 2006, 651 posts, RR: 1
Reply 5, posted (7 years 3 months 2 weeks 1 day 5 hours ago) and read 1370 times:

Quoting Ryanair737 (Reply 4):
Hmm..., I would see no point in delaying the climb rate if that was the case.

Well, if it's bumpy at 370, reduce the climb rate to zero and stay at 350!!

Quoting Ryanair737 (Reply 4):
ATC require a certain rate of climb (especially in busy airspace) to meet level restrictions on the way up.

They require enogh to meet crossing restrictions. Outside of that, 500fpm is all that is required.


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