U/S Instruments - should an aircraft be flown with them?
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So am I to understand then, in simple speak that one can legally fly without some instruments. But SENSIBLY it is up to the pilot to make up his/her mind when checking the aircraft/type of flight/wx conditions etc etc?
Well Grob Queen, close, but overly simplified.
So am I to understand then, in simple speak that one can legally fly without some instruments. But SENSIBLY it is up to the pilot to make up his/her mind when checking the aircraft/type of flight/wx conditions etc etc?
Well Grob Queen, close, but overly simplified.
Just to add another comment .... I was reading the Flying Order Book yesterday and that has a list of things without which the aeroplane may be flown.
Genghis ... that sounds like a story from Martha Lunken.
Genghis ... that sounds like a story from Martha Lunken.
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Sorry for the late response GQ, busy busy these days!
UNOS: Undershoot North Overshoot South.
Its a way of remembering compass turns. DIs are stable in comparison to the compass and so when in a turn its easy to roll out on your desired heading. If flying by the wiggly compass we need to undershoot the desired heading if flying through North, and overershoot the heading if flying through South. Its to do with lag and the construction of the compass i.e. being weighted to be level in its case in accordance with latitude. (or at least that's my understanding anyway.)
GW
Edit: What a &%ck!!! Thank Mcgoo... think its sorted now!
UNOS: Undershoot North Overshoot South.
Its a way of remembering compass turns. DIs are stable in comparison to the compass and so when in a turn its easy to roll out on your desired heading. If flying by the wiggly compass we need to undershoot the desired heading if flying through North, and overershoot the heading if flying through South. Its to do with lag and the construction of the compass i.e. being weighted to be level in its case in accordance with latitude. (or at least that's my understanding anyway.)
GW
Edit: What a &%ck!!! Thank Mcgoo... think its sorted now!
Last edited by GeeWhizz; 26th Mar 2012 at 22:08.
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Try again GeeWhizz!
Hmm ... how do you do those on a G1000 aircraft where you lose the timer if the screens go blank ... gosh, an actual reason to have a real watch with you in the cockpit!
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I never remembered the compass turning rules. Not for the UK PPL, not for the FAA PPL, not for the FAA CPL, not for the FAA or JAA IRs. A complete waste of time IMHO.
Timed turns are far better, and even if you count in your head they are more accurate than trying to second guess what the compass is doing. And e.g. a vertical card compass swings very differently to a standard compass. My VC compass is almost unguessable.
Timed turns are far better, and even if you count in your head they are more accurate than trying to second guess what the compass is doing. And e.g. a vertical card compass swings very differently to a standard compass. My VC compass is almost unguessable.
On the other hand, EU OPS for non-commercial operations says
A flight shall not be commenced when any of the aeroplane instruments, items of equipment or functions required for the intended flight are inoperative or missing
(my bold). It says required. Not installed, required. If they meant installed, they surely would have said so?
A flight shall not be commenced when any of the aeroplane instruments, items of equipment or functions required for the intended flight are inoperative or missing
(my bold). It says required. Not installed, required. If they meant installed, they surely would have said so?
I'd be lying if I said that I thought the precise phrasing of NCO.IDE.A.105 got more attention there that it has got in this thread. But the intention is that equipment required by Part-NCO or by the AFM is operative.Thanks to Jim59, by the way. I'd never seen AIRCOM 2010/12 before and it is helpful.
