PPRuNe Forums - View Single Post - ATR Pilots - use of LO BANK for turns
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Old 15th December 2010 | 15:44
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Rookie.Pilot
 
Joined: Dec 2010
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From: somewhere nice
Comments from the left ..

Yes I have.

I personally try to explain to them in detail, about the things we are talking about.
Very few seem to understand what I'm getting at.
Nevertheless, I'm persistent and try to do my leg as smooth as possible.

Yes, incase the heading to come exceeds more than 60 degrees, leaving LNAV engaged will take it very sharp. I do the very same thing you mentioned, about going on heading select, LO bank , turn onto the fix, zero the deviation then re-engage LNAV. Comes out very smooth.

Comments from the back are rather encouraging too. Had a few pilots tell me that on LO bank they hardly felt her turning.

I'm after the finer points to include incase I'm asked why I am to use LO bank.

As it stands there are 3 very senior captains who alL stand by me on this.

They said, LO bank gives better performance, speed stability in sharper turns, keeps you away from the circuit pattern at major airports especially those with dual runways, the margins of recovering from a stall at such an angle of bank is greatly increased, also pax comfort, to name a few. Not to forget, an engine flameout while in the turn, makes it very hairy when you are in HI bank.. try it in the sim to confirm. So LO bank suffices well for this too.

I am aware that ATR specifies it is possible to use HI bank when you are white bug VMLB 0 + 1 kt.

But to my knowledge no where has it been mentioned that HI bank is mandatory. Even the default selection comes on in LO bank due to the speeds being below white bug for the initial climb.

Just wondering if there are anymore things all you very experienced gents can think of to support my case.

Thanks again guys,

Rookie
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