CRJ 700 Pilots Technical Question

[DiverDriver]

I'm sure many of you who fly the 700 have also flown the 200. Does the 700 have a "Vt" speed? If it does are you required to use 1/2 bank like on the 200?

 

[ReportCanoa]

Yes it has a Vt speed. It also has half bank mode. Now how you want the two related- well- I don't know. Manuvering speed on takeoff is defined as V2+10. If you are flying slower than V2+10, you must not bank more than 15 degrees.

 

[DiverDriver]

Yes it has a Vt speed. It also has half bank mode. Now how you want the two related- well- I don't know. Manuvering speed on takeoff is defined as V2+10. If you are flying slower than V2+10, you must not bank more than 15 degrees.

But if you are above V2+10 then you can bank 30 degrees? I ask because on the 200 if you are below Vt then you are restricted to 15 degrees of bank.

Now, does that same restriction apply if you are single engine? As long as you are above V2+10 you can go to 30 degrees bank right? Even single engine?

 

[amcnd]

We use VT or VFTO for full bank. In reality for a flaps 20 takeoff its v2 +30 wich works out to be about VT

 

[ReportCanoa]

But if you are above V2+10 then you can bank 30 degrees? I ask because on the 200 if you are below Vt then you are restricted to 15 degrees of bank.

Now, does that same restriction apply if you are single engine? As long as you are above V2+10 you can go to 30 degrees bank right? Even single engine?

The V2+10 thing applies to both airplanes where I work. Your operator may have a more conservative policy like VT. Single engine or both, it is the same.

 

[Carl_Spackler]

What airline restricts you to 1/2 bank when below VT?

Edit: are you talking normal 2 engine, or single engine?

 

[PCL_128]

I ask because on the 200 if you are below Vt then you are restricted to 15 degrees of bank.

Huh? Which company is that? On takeoff, V2+10 is sufficient for full bank. During the approach, Flaps 0 Ref+10 is sufficient for full bank.

 

[DiverDriver]

What airline restricts you to 1/2 bank when below VT?

Edit: are you talking normal 2 engine, or single engine?

Normal or single engine if you are below Vt you use 1/2 bank. Your airline does not call for 1/2 bank below Vt for 2 engines operating?

 

[OCP]

Nope. That make no sense.

 

[DoinTime]

Normal or single engine if you are below Vt you use 1/2 bank. Your airline does not call for 1/2 bank below Vt for 2 engines operating?

First off....there is no such thing as Vt. Vt stands for Vtarget. It is a generic bug meant to be used for whatever target speed the operator desires. The CRJ has Vfto (final t/o speed) that is commonly bugged with the Vt bug.

Now....considering you are referencing Vt I assume your are in the t/o phase of flight. A prime consideration for selection of bank angle is aircraft configuration. I find it hard to believe that your operator forbids full bank turns while still in the t/o flap setting and above Va (V2+10). Is it that you meant to say that full bank turns are forbidden with a clean airplane and speeds below Vfto? I think this is a reasonable limitation as Va (for clean config) is close to Vfto.

 

[Flyerjosh]

Diver,

Bombardier doesn't specify any particular limits for maneuvering other than V2+10. Did you work for ACA/IDE? The 1/2 bank thing was a maneuvering buffer that the powers that be built into the aircraft and departure profiles.It's up to each airline/operator to designate such procedures as they see fit.

 

[DiverDriver]

Diver,

Bombardier doesn't specify any particular limits for maneuvering other than V2+10. Did you work for ACA/IDE? The 1/2 bank thing was a maneuvering buffer that the powers that be built into the aircraft and departure profiles.It's up to each airline/operator to designate such procedures as they see fit.

Don't work for IDE but aparently we took that from them.

Now, the reasoning behind my technical question about the 700 was obviously born of this company not manufacturer limitation. It has been rumored that the 700 will not be approved to do ASE because of the 30 degree bank requirement for the balked landing. My belief was that because you couldn't go to 30 degrees below Vt even with two engines running was the reason. I was basicly trying to see if this was rumor or fact and it appears to be rumor rather than fact.

Thank you all for shedding light on this.