How do you follow the "SRS"?
Thread Starter
Joined: Oct 2011
Posts: 20
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From: Everywhere
How do you follow the "SRS"?
Haven't flown Jets yet obviously.
I understand the speed reference systems helps you maintain V2+10, and V2 in single engine?
How do you "follow" this SRS? (What indication is it)?
When do you follow it?
I understand the speed reference systems helps you maintain V2+10, and V2 in single engine?
How do you "follow" this SRS? (What indication is it)?
When do you follow it?


Joined: Apr 2004
Aviation Qualifications: LAME
Posts: 2,281
Likes: 189
From: Dorset UK
I only know about the Airbus A300 but I think the later Airbuses are basically the same.
SRS (speed reference system) is a Flight Director mode (not Auto Pilot) used during take off, that gives pitch commands through the F/D pitch bar to maintain V2 +10 with all engines operating and V2 with one engine inoperative.
The V2 speed is derived from performance calculations and is set on the ASI with the speed selector. When the "Go" (TOGA) levers are triggered on the power levers at the start of the take off the Modes "N1" and "SRS" are engaged and this is followed until acceleration (3000ft. AGL) or A/P is engaged.
Hope this helps.
SRS (speed reference system) is a Flight Director mode (not Auto Pilot) used during take off, that gives pitch commands through the F/D pitch bar to maintain V2 +10 with all engines operating and V2 with one engine inoperative.
The V2 speed is derived from performance calculations and is set on the ASI with the speed selector. When the "Go" (TOGA) levers are triggered on the power levers at the start of the take off the Modes "N1" and "SRS" are engaged and this is followed until acceleration (3000ft. AGL) or A/P is engaged.
Hope this helps.




