DreamLiner and Li-ion

Sounds like an extra function of the autopilot should be to randomly require some response from the pilots to check if they are awake ...

In the days before the cockpit was kept locked, the cabin crew would appear from time to time and offer coffee.

Colin Bignell

the comment re pilots being useless baggage etc.

moderm large passenger aircraft a fully trained skilled pilot actually flies the thing.

/landing, planning etc. that require a lot of input.

In that case Sir you chose your references sources unwisely. The wiki quote was simply an easily accessible summary which I know to be correct. If you want the full details you can find them in CS-AWO (Certification Specifications for All Weather Operations) at Subpart 3.

"AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONS WITH DECISION HEIGHTS BELOW 30 M (100 FT) OR NO DECISION HEIGHT ? CATEGORY 3 OPERATIONS".

Sub clause 304 includes

(a) The primary mode of controlling the aeroplane must be automatic until the main wheels touch the ground (except as in CS?AWO

It is available on the web - you might ask your actual real pilot to find it for you.

How many of those were on auto?

You mean turbine blades don't feather?

Is that a joke?

Well I dunno. I'm assuming that the reason for your comment is that a jet when landing will tend to have the engine on low thrust, meaning that it takes a few seconds to get the turbine wound up - too slow.

Whereas a prop plane can come in to land with the engine on full but the prop feathered. If there's a problem he just changes the prop pitch - instant thrust.

I used to notice this at Cambridge Airport when taking the Suckling AIrways 07.00 flight to Schiphol. It was a 20 seater or so Dornier and he'd stop at the end of the runway, wind up the engines - and only then change the prop pitch. Then you'd get thrust.

yes.

yes. The mechanical inertia of the turbine is the problem. IN a turboprop it can be spooled up on low load /low throttle because as you say, the props are in super fine pitch. (not feathered- that's super coarse pitch). With (I assume) constant sped props, the opening of the throttle will coarsen the pitch to keep RPM constant, adding massive thrust.

TurboJETS cant do that..they are very much one speed devices. And dont take kindly to being revved up rapidly.

I thought that many fighter pilots were found to be temperamentally unsuited to flying passenger aircraft. (?)

------------8><

Don't they whack it up to full thrust as they touch down, in case the arrester gear fails?

well they didnt use to.

There is a tendency of course with modern planes to come in in a high drag, high power high alpha attitude. Airbrakes and flaps everywhere.

But the terrifying physics of flight is that the typical speed range of an aircraft is from stall to about 3-4 times stall. Unless you have insane power available.

That puts take off and landing speeds of transonic aircraft somewhere around the 200mph mark.

some supporting evidence for these claims.

You seriously telling me that you've never come across an ex-fighter pilot who later became a commercial pilot?

I'm going to ignore my father (once carriers, later civil airliners) and turn to google. I typed in "fighter airli" and it immediately realised I was interested in "fighter pilot to airline pilot"... which gave me over a million hits.

Andy

That's my understanding. In fact before - the idea is to hit the deck as if flying a touch-and-go, except if the hook catches you don't go anywhere.

Source?

Right. And that put the take-off speed of Concorde at 300kts (not the actual 225 or so) and means that a Blackbird took off at around 500MPH.

I don't suppose the space shuttle (max airspeed 17,500 MPH) counts.

Andy

some supporting evidence for these claims.

I have two friends (who oddly do not know one another), both BA pilots, both ex-RAF fast jet pilots.

Perhaps Jo Stein would like to design a program to do that.

Yeah, sorry, despite English being the universal language of aviation the WOCABs try to do it their own way. No English version available AFAICS.

You're welcome.