Hello fellow forum members,
Here is a thing that has been bugging me for quite some time now and it has only just occurred to me that I could ask here and hopefully get it answered. I have seen many videos of takeoffs from inside the cockpit, in many of them one of the pilots (usually the F/O) is heard saying “SRS, runway” just as they begin the takeoff run. What does this mean??
Thanks in advance
AJ
By: wysiwyg - 23rd August 2008 at 12:35
Company SOP is to always fly NADP2 noise abatement departures (1500′ thrust reduction and acceleration) unless NADP1 (1500/3000) specified by local restrictions. If SRS pitch limited to 15 degrees and approaching Vfe for current config then thrust reduction (2 clicks back to climb gate due to this only being valid for TOGA departures) when passing 800′. Personally I think it’s a shame to write it down as a procedure as I believe it is a general airmanship issue.
By: exmpa - 23rd August 2008 at 11:03
We sometimes get a problem with SRS on take offs at low weight using TOGA power on the A346 as the SRS also limits pitch angle to 15 degrees nose up which can put you close to flap speed exceedances if not dealt with swiftly.
Under those circumstances it would be prudent to reduce the TRA.
exmpa
By: wysiwyg - 23rd August 2008 at 08:48
The call should come from whoever is the flying pilot for that sector and may be restated by the other pilot depending on company SOP rather than it being a Captain/FO thing.
We sometimes get a problem with SRS on take offs at low weight using TOGA power on the A346 as the SRS also limits pitch angle to 15 degrees nose up which can put you close to flap speed exceedances if not dealt with swiftly. We don’t usually suffer excess thrust problems on the 300! 😀
By: exmpa - 22nd August 2008 at 07:47
It is the check of the Flight Mode Annunciator (FMA) at the top of the Primary Flight Display (PFD). It confirms that the Flight Director (FD) is in the correct mode for takeoff. The callout would normally be “Man-Flex (or TOGA), SRS, Runway”. These are Airbus calls, I don’t know what the equivalent would be for Boeing.
SRS (Speed Reference System): Mode used at takeoff, or Go- Around to maintain SRS speed (V2, V2+10, VAPP …).
RWY (Runway): Mode used at takeoff to guide the aircraft along the runway centerline, using LOC.
FLEX/TOGA: The selected thrust rating
exmpa
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August 22, 2008 at 12:27 am