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Airspeed restrictions. (Read 1123 times)
Dec 8th, 2003 at 12:12am

JVC_systems   Offline
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Hello people,
I was wondering what are the speed restrictions in other countries besides the U.S.A.? In USA you should not be going more than 250 if you are bellow 10,000feet. I was wondering what are the speed limits in other place, how about Canada for example, Australia, Europe, Asia? Do they have to use the same speed restrictions as the United States or do they use their own if they even have any? Thanks.
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Reply #1 - Dec 8th, 2003 at 8:44am

Mr. Bones   Offline
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in Europe we also have: not over 250kts when bellow FL100
 
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Reply #2 - Dec 9th, 2003 at 10:44am

JVC_systems   Offline
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That's intersting, how about in other places? Asia, Afrika?
 
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Reply #3 - Dec 10th, 2003 at 4:06pm

Ivan   Offline
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As far as the manual for the Tu-154 goes, it's 500 kmh below 3000 meters in russia
 
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Reply #4 - Dec 11th, 2003 at 4:02pm

JVC_systems   Offline
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Ivan,
How many feet and knots is it? I think 3000metter should be around 10,000feet how about kilometers?
 
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Reply #5 - Dec 12th, 2003 at 5:59pm

Ivan   Offline
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it's some 10000ft... didn't cross-check the speed with the shift-z display, but should be somewhere between 220-280 kts
 
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Reply #6 - Dec 13th, 2003 at 10:36pm

JVC_systems   Offline
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I see, so looks like it is a standart rule for aircrafts to fly less than 250 if below 10,000feet. I was also wondering why...Is it because of the birds or is it because of the amount of noise jet engine produces?
 
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Reply #7 - Dec 19th, 2003 at 4:20pm

Ivan   Offline
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could be noise, but separation equalizing too.

when the jets just appeared (DH comet, Tu-104) there was no speed restriction... they came not that much faster though (less engine power).


Military flights are not speed restricted below 10000 ft
 
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Reply #8 - Dec 20th, 2003 at 9:07pm

JVC_systems   Offline
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How about in places where they aren't that many people. Fiji islands for example or North/Soult poles? Do they have their own rules there for speed restrictions?
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Reply #9 - Dec 21st, 2003 at 12:39am

Henk Hugo   Offline
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normally its 250kts below 10 000ft, unless ATC says "No speed restictions" then its balls to the wall  Grin which is always great fun
 
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Reply #10 - Dec 28th, 2003 at 1:03pm

Nexus   Offline
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Quote:
I see, so looks like it is a standart rule for aircrafts to fly less than 250 if below 10,000feet. I was also wondering why...Is it because of the birds or is it because of the amount of noise jet engine produces?


I think there are several reasons, but they may not be obvious to the general public.
Slower speeds reduces the workload for air traffic controllers, imaging how fast the ATC have to act when every aircraft came thundering along at some 300kts while awaiting vectoring. In busy airspace there would just be more dangerous to fly faster.
 
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Reply #11 - Dec 29th, 2003 at 1:30pm

OTTOL   Offline
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I hate to step on your toes..............but why break with tradition!  Embarrassed  Smiley     It actually may be easier when aircraft are expedited away from a particular sector. Case in point: Houston Center and Approach, over the past few years have been experimenting with a "high speed" program. It IS legal to go over 300kts below 10,000' in the Houston area, with ATC's approval. In fact, most of the time I fly to the Houston area they assign high speed climbs and descents. Descending is not a problem, but during the climb, maintaining 300kts+ means that by the time I hit the lower 20's, my climb rate is Cessna-ish! Great for ATC(they get rid of one more airplane that much faster), bad for me.  Roll Eyes
 
.....so I loaded up the plane and moved to Middle-EEEE..........OIL..that is......
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Reply #12 - Dec 30th, 2003 at 10:40am

Nexus   Offline
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OTTOL, dang you americans  Grin

I wouldn't mind higher speed limits below FL100, but many of my buddies told me the speedlimit is applied for safety reasons. I'm certainly not an ATC wiz at all, but its sounds pretty logical?

Just proves that you Yanks are crasy indeed  Grin
 
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Reply #13 - Jan 1st, 2004 at 6:19am

lemydanger   Offline
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I think it's not a prob of ATC, it's a prob of VFR flights. I don't think to have a chance in my glider against a 350kts jet.
 
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Reply #14 - Jan 1st, 2004 at 10:25am

Nexus   Offline
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Would you have a bigger chance against a Boeing 777 coming in at 250kts? Wake turbulence is more violent in slower speeds if I'm not mistaken. But I guess it buys  you more time to react so you have a good point.

I still beieve it's much easier for ATC to handle the trafic if they were all flying at near the same speed  Smiley
(Yeah, I'm boneheaded)

Grin

 
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Reply #15 - Jan 1st, 2004 at 2:53pm

JVC_systems   Offline
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About the turbulence, is it true that smaller airplanes should be more "affraid" of turbulence than bigger once such as 747, 777 etc.?
 
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Reply #16 - Jan 1st, 2004 at 9:56pm

OTTOL   Offline
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Quote:
I still beieve it's much easier for ATC to handle the trafic if they were all flying at near the same speed  Smiley
(Yeah, I'm boneheaded)

Grin

What you're failing to do is look at the situation three dimensionally. Most jets posess an initial climb rate in excess of 3000FPM. What this means is that within three minutes of the time a jet leaves the ground, it's easily well above the airspace that MOST small aircraft occupy. ATC also establishes corridors for faster and larger aircraft, and it's rare that we ever even encounter one of those "little guys".
Cheesy
Quote:
About the turbulence, is it true that smaller airplanes should be more "affraid" of turbulence than bigger once such as 747, 777 etc.?
A smaller aircraft should obviously be more cautious and aware of potential wake turbulence, BUT the most notorious wake creater, the 757, received it's reputation after it was determined to be the culprit in two wake induced crashes involving 737's.
 
.....so I loaded up the plane and moved to Middle-EEEE..........OIL..that is......
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Reply #17 - Jan 2nd, 2004 at 1:48pm

JVC_systems   Offline
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OTTOL,
Interesting stuff  Smiley You said B737 can crash because of turblulence, I was wondering about larger jets. How do they react to turbulence? I was on Delta Air Lines B757 and I remember some rough turbulence during the flight.
 
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Reply #18 - Jan 2nd, 2004 at 5:27pm

OTTOL   Offline
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No aircraft, to date, is immune to the affects of wake turbulence but the 737 is the LARGEST aircraft that I know of that crashed as a result of wake turbulence. The loss of the American Airbus at JFK last year was theorized by some experts to be lost as a result of the preceding B747's wake. I haven't had a camera good enough to capture it yet, but at altitude, when a 767 or 777 passes over us the visible contrail creates two horizontal cyclones that exceed 3X the height of the aircraft itself. As Nexus stated correctly, the SLOWER an aircraft travels, the greater the intensity of the wake. Consequently, a large aircraft on close final must produce an enormous horizontal cylone.
 
.....so I loaded up the plane and moved to Middle-EEEE..........OIL..that is......
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