Is there much difference between the 135/140/145 vs the new 170/175's? I know the E-jet series aircraft are fly-by-wire. Is it a nice aircraft to hand fly? Are they responsive and yet stable? The CRJ's are nice to hand fly from what I've read and heard. The control column on the ERJ's are kind of odd...
I liked the feel of the ERJ series more than the EMB-175. The E-Jet feels a bit artificial -- not surprising, since as you know, it's fly by wire and you're pushing against a spring. Only the ailerons are normal hydraulic controls.
Now that I have about 1500 hours in the ERJ and 2000 in the E-175, I can say that I like the -175 more because it has better climb performance and more powerful in general. At first people said it wouldn't come down as fast as the ERJ but I've found that to be not true. You can do 250 knots until a 5 mile final and be configured and stable at 1000' with calm winds. The thing really comes down quick with flaps 3 at about 190 knots.
Also, for the RJ guys, what are the SOPs in the US for say American Eagle, Republic, ExpressJet, ect regarding hand flying? How much hand flying actually goes on in the average commercial aircraft? I've heard that it depends on weather and traffic density and SID's and things of this nature. Obviously you can hand fly any aircraft as long as you want, but what do the SOPs state?
I can't remember what my company's book says exactly, but it essentially it says that a pilot should keep themselves proficient at hand flying the airplane, and keep the workload in mind while doing so.
There are no hard restrictions on autopilot use other than the aircraft limitations of turning it on after a vertical mode has been selected (1000') and off at 70' on final.
I usually hand-fly up to 10,000 to 25,000 feet. I like to have it nice and trimmed out before I let 'George' take over, even though in this airplane the aileron is really just an artificial feel unit.
On the way in, if it's a nice day and not busy I might turn it off at 10,000' but usually if we're coming in to a busy class B type airport, I'll leave it on until we're at least cleared to intercept. I know I can hold a heading and altitude -- proficiency can be done whenever, but it's nice to keep things nice and precise and managed well when you're flying a parallel ILS etc.
Once in a while we're in a spot when I would leave the A/P on but something happens where I'll click it off. Like just a few days ago. OVC005, we're at about 3000' AGL and the plane ahead of us must have just passed in front of the glide slope signal because it went from center to one dot high real suddenly. The autopilot was going to dive and chase the thing down, even though it was about to come back up, so I clicked it off. Just an example of a time when I prefer to do it myself rather than watching the automation have a tough time with it.
I have not landed with the autothrottles on in the E-Jet in the last 1800 hours flying it. I find them distracting on short final and rather than override a system I prefer to turn it off. An exception is if I am flying an approach to minimums with the autopilot coupled. As long as the autopilot is on, I leave the throttles on most of the time. But, I haven't flown an ILS to lower than about 500' ceiling in the last two years of 121 flying, so I can't recall the last time I landed with the throttles on. I think they occasionally do a lousy job of adjusting thrust on final. i.e. 5 knots fast, back to IDLE at 500 feet if you don't override them. Well, technically, in my FOM that no longer meets stable approach criteria because the engines are not spooled up to an approach thrust setting. I can sit there and force my hand against them and make sure they don't come all the way back or I can turn them off and do it myself with very tiny adjustments all the way down final. It's a no brainer.
Landing with throttles off is an increasingly popular trend among pilots that I fly with in this airplane.