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-   -   Flight director setting @ departure (https://www.pprune.org/tech-log/243398-flight-director-setting-departure.html)

Say again! 11th September 2006 19:23

Flight director setting @ departure
 
My company just changed our SOP's concerning F/D setting on the Dash 8 fleet:

T/O with F/D at TOGA pitch
after liftoff fly V2-V2+10
Bleeds on @ 400'
at 1000' @ AAL engage IAS Mode set Vfto and set climbpower

I think it is rather strange to force pilots to use the IAS mode in this phase of T/O.....

What are your companies' SOP's concerning F/D settings?
What do you think about the described procedure above?

Plain Driver 12th September 2006 07:45

Just my two cents....
 
We set and fly the GA pitch initially. When the gear is tucked away (and we're still on 2 engines - up to now, never went wrong) we go to IAS 135. When above MSA or in visual contact with terrain we 'accelerate' (if such a thing exists on a -300 series) as to get out of the way of the fast jet boys.:cool:
We are, however, thinking about changing to a standard V2+10 initial climb as more and more airports mandate this for noise abatement.

There's many roads leading to Rome, and I think it is impossible to create a one-size-fits-all way of climbing. It is ever so much dependent on weather, traffic, obstacles, weight, etc, etc. IMHO, it remains the flight crews' decision to select the safest way of operating under the prevailing circumstances.

Luck, PD.

hikoushi 12th September 2006 08:58

Our SOPs have us (both engines working) initially climb to the go-around pitch until 500 ft., then flaps up, engage IAS mode and climb out at 160 knots. With an engine out it's V2 till 500, then accelerate to Vyse for the rest of the climbout; flaps up passing retraction initiation speed appx. v2+ 10-15 (100 series).

joerkaaff 12th September 2006 09:42

Our (-300) procedure is not much different than "SAy Again"'s..

We depart in "Go-around" mode, and once we get our flaps up and bleeds on (usually around 800-1000' for a flap10 departure), we set IAS to 135 with both engines running. (Vfto if one is out.) Passing MSA or VMC conditions, we continue at 165.

Works fine for us, and the normal practice is to pitch-sync to roughly 135kts before commanding the PNF to select IAS/135 and engaging the autopilot.

As for the -100, there are certain departures where v2+10 is required even with both engines running. Places your nose awkwardly high, but keeps your turn radius to a minimum.


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