Far 91.117
11-30-2006, 06:23 PM
#1
Che Guevara
Thread Starter
Joined APC: Aug 2005
Posts: 6,408
Far 91.117
I was reading part 91 studing up for any possible interview I might get and have this question. What is the maximum operating speed within class C airspace? I always thought 200kts however part 91.117(b) says:"Unless othersie authorized or required by ATC, no person may operate an aircraft at or below 2,500 feet above the surface within 4nm of the primary airport of a Class C or Class D airspace......"
So if I'm at 3k agl but in class C i can still kick 250kts?
So if I'm at 3k agl but in class C i can still kick 250kts?
12-01-2006, 04:43 PM
#4
Prime Minister/Moderator
Joined APC: Jan 2006
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Originally Posted by ToiletDuck
I was reading part 91 studing up for any possible interview I might get and have this question. What is the maximum operating speed within class C airspace? I always thought 200kts however part 91.117(b) says:"Unless othersie authorized or required by ATC, no person may operate an aircraft at or below 2,500 feet above the surface within 4nm of the primary airport of a Class C or Class D airspace......"
So if I'm at 3k agl but in class C i can still kick 250kts?
So if I'm at 3k agl but in class C i can still kick 250kts?
Class D airspace is normally, but not always 4nm x 2500', so normally 200 kts is the limit there. There are a few (such as KSEE) where the ceiling of the airspace is less than 2500 AGL, but you are still restricted to 200 kts if above the airspace but below 2500 AGL.
Class C is normally larger than 4nm x 2500' so you can usually go 250 kts within that part of the class C that is outside of the 4nm x 2500' area.
12-01-2006, 05:36 PM
#5
Gets Weekends Off
Joined APC: Oct 2005
Position: SF340
Posts: 244
Or you will eventually rarely pull out a chart because you visit the same sh!t holes all the time and not even notice the class of airspace you are in. If you happen to be flying a prop, odds are you will always keep it at 250 until short final and then slow down continuously until the flare. If in a jet, well that will require configuring earlier so you might actually be slowed down prior to entering such airspaces as class D.
12-01-2006, 05:59 PM
#6
Prime Minister/Moderator
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In jet operations, this usually has no effect on arrivals but on departures you have to remember to stay at or below 200 until >2500 AGL at smaller airports.
Actually what gets people in trouble is going 250 under the bravo when departing a class C/D airport. Especially in SOCAL.
Actually what gets people in trouble is going 250 under the bravo when departing a class C/D airport. Especially in SOCAL.
