Speed Restriction ?

[flyboyzz1]

Just looking at 91.117b and have a question. It states that below 2500 about the surface and within 4 NM of the primary airport of a class C or D airspace IAS must be below 200 knots. So does that mean that if you are above 2500 but still within 4NM of the class C or D airport you may speed up to 250 knots? Also what if you are 5NM from the class C or D airport can you speed up to 250 but below 2500?

Thanks

 

[wmuflyguy]

Just looking at 91.117b and have a question. It states that below 2500 about the surface and within 4 NM of the primary airport of a class C or D airspace IAS must be below 200 knots. So does that mean that if you are above 2500 but still within 4NM of the class C or D airport you may speed up to 250 knots? Also what if you are 5NM from the class C or D airport can you speed up to 250 but below 2500?

Thanks

It is 2500 and within 4nm. If your 1500 and 10nm away. You can go 250.

If it was one or the other it would read "2500' agl or 4nm"

 

[flyboyzz1]

thought so. Thanks.

 

[TOOL CRIB]

And of course that's only when the tower is operating and the class C or D airspace is "open for business".

 

[rickair7777]

Also, some Class D's are smaller than the standard 4nm/2500' AGL. The 200 kt rule STILL applies within 4NM/2500' even if the class D is smaller than that (KSEE for example has a CIG of 2000 AGL)

So you could be outside the D but still restricted to 200 kts.

 

[outtahere]

Go 200 untill you are overblock, then 250 untill yelled at by ATC!

 

[aussieflyboy]

Cmon dude, you're smarter than that, surely...

Obviously if you're above 2500 then you're out of the class C/D speed limit zone and free to speed up. Otherwise if you're flying at FL360 you'd have to slow to 200 KIAS when you got within 4 NM of a Charlie...

Think first, THEN ask the question

 

[pilotyip]

200 Kts

We have a company rule, never go above 200 Kts when below 3,000' AGL unless requested by ATC. That way one rule fits everything in the US Canada, and Mexico. Never get a speeding ticket. Plus we routinely go into uncontrolled airports in Indian Country, (Cherokees, Apaches, etc,), so slowing down is a good idea. We had a Fed a few years ago doing an observed Line Check. He wrote the Capt up for exceeding 200 Kts while climbing out of YIP in a DC-9.

 

[geardown]

That works great unless your at a primary class B airport. 200kts to 3000' can really throw a wrench in their operation. They don't ever request it, it is simply expected.

 

[pilotyip]

Does not seem to cause us any problems, at those airports it is often it the departure procedure like ATL or if they want it they ask for it.

 

[DrewBlows]

That works great unless your at a primary class B airport. 200kts to 3000' can really throw a wrench in their operation. They don't ever request it, it is simply expected.

Nah, you'll be to 3000' before anyone notices. It sounds like a pretty reasonalble rule if you are going to foreign country and might not be totally familiar with local custom (regulations). The RJ and other "glass" airplanes have fancy digital radar altimeter readouts which help with situatoinal awareness. I have never flown a DA-20 or DC-9, but suspect they aren't as SA friendly.

 

[Stifler's Mom]

Just looking at 91.117b and have a question. It states that below 2500 about the surface and within 4 NM of the primary airport of a class C or D airspace IAS must be below 200 knots. So does that mean that if you are above 2500 but still within 4NM of the class C or D airport you may speed up to 250 knots? Also what if you are 5NM from the class C or D airport can you speed up to 250 but below 2500?

Thanks

We've hit a new low here at flightinfo folks. Usually, most are confused with the meanings and correct spellings of your, you're...there, their, they're...but we've found somebody who is easily confused by the words and and or. Or is it easily confused by the words and or or?

JK flyboyzz1.... :beer:

 

[flynryan15]

Stifler once again you have caused me to spit Sprite Zero out my nose and all over my computer thanks!

 

[flyboyzz1]

after looking at that book for a few hours it all seems to turn to mush (the words and the brain)... surprised I haven't gotten nailed harder :smash:

 

[DrewBlows]

Good lord! Someone asks a simple question and gets jumped on. They should change the name of the site to Flightsarcasticresponse.com, it's more appropriate.

 

[XJdriver]

The place you need to be careful is Canada. The 200kts limit is more restrictive there. It is within 10 miles and below 3000 feet. I have seen many guys I fly with trying to exceed that when being vectored for an approach. The other odd thing is they have the 250kts limit below 10,000 except when departing. Once you are above the 3000 or 10 miles instead of excellerating to 250 till 10'000 you can go right to your enroute cruise speed of 300 or whatever. Whenever you hold 250 to 10,000 it causes problems for planes departing behind you.

Food for thought.

 

[regionalcap]

The place you need to be careful is Canada. The 200kts limit is more restrictive there. It is within 10 miles and below 3000 feet. I have seen many guys I fly with trying to exceed that when being vectored for an approach. The other odd thing is they have the 250kts limit below 10,000 except when departing. Once you are above the 3000 or 10 miles instead of excellerating to 250 till 10'000 you can go right to your enroute cruise speed of 300 or whatever. Whenever you hold 250 to 10,000 it causes problems for planes departing behind you.

Food for thought.

Exceeding 250 for departure is only for when you are cleared to an altitude above 10,000 (otherwise the 250 knots still applies).

 

[FlyingDawg]

Otherwise if you're flying at FL360 you'd have to slow to 200 KIAS when you got within 4 NM of a Charlie...

Only if the airport was above 12,000'! Anything lower would be more than 4NM away.

 

[aussieflyboy]

Only if the airport was above 12,000'! Anything lower would be more than 4NM away.

Lol touche!

 

[rjacobs]

Mexico has different speed limits as well, every airport has them a bit different, but most are 250 below 10,000 AGL, 250 below 10,000 MSL and within 30 nm of the primary airport, 200 below 3000 AGL and within 10 miles of the primary airport.

 

[dueguard1]

Just play it on the safe side!! Bueno Dias!!

 

[rtmcfi]

Exceeding 250 for departure is only for when you are cleared to an altitude above 10,000 (otherwise the 250 knots still applies).

Very true, but check your opspecs......A012 b. (6)
Most airlines have this one that says something to the effect of when operating out of the USA, you are still bound by USA FARS. This is one of the conditions the FAA places upon you for giving you the authorization to fly internationally.

 

[paulsalem]

And of course that's only when the tower is operating and the class C or D airspace is "open for business".

If the tower is closed it's not class C or D any more. Most of the time its Class E to the surface.