Simviation Forums

Be grateful for any answers on this simple procedure.....

As I approach a runway, possibly using ILS, I'm all lined up and have about 2 - 3 square hoops to go through, using the Learjet, I'm at a speed of 160 and coming down, flaps at 20, gears down.....

I then press z and the plane takes a dive and I crash and burn....what am I doing wrong?

If I knew what flight director was for and how it could be used, then I would try that. But its so annoying to have my flights end up this way.

Any help appreciated

Steve

The first thing to do.. is park the jets and climb into the C172..

Sounds like your trim was at a strange setting before you disconnect the autopilot.  Hold on to that column tight when you disconnect.  Also, 160kts sounds way to fast for a Learjet on short final.

But like Brett said said, park the jets and master approaches in a prop.  If you still wanna do a coupled ILS approach with autopilot, the 172 can do it beautifully!

...and turn off the blasted EFIS!

Those rectangles look really cool, but they're a major distraction and totally unneccesary. Look at it this way: if you know how to use a VOR and properly perform an ILS approach, then you don't need EFIS and you're concentrating on those two needles anyway. If you don't know how to fly an instrument approach; then EFIS is just going to get you killed as you chase the rectangles instead of fly the approach. On the rare occasion I do use them - generally on zero-zero approaches into a short strip under heavy icing, turbulence and precip at two in the morning - I use it strictly as verification, rather than as guidance.

If I knew what flight director was for and how it could be used, then I would try that. But its so annoying to have my flights end up this way.

That's just those little brackets that appear on your primary flight display (the electronic attitude indicator on your plane).  Its like an autopilot, 'cept it doesn't control your plane for you.  If you have your ILS tuned, you just have to keep that little airplane on your attitude indicator centered on those brackets and it should keep your plane on the glideslope and localizer.  Don't forget to control your airspeed, however.  Its really handy for those who like to hand fly ILS approaches on the big heavies like the 747 and still maintain precision.   

...and turn off the blasted EFIS!

Those rectangles look really cool, but they're a major distraction and totally unneccesary. Look at it this way: if you know how to use a VOR and properly perform an ILS approach, then you don't need EFIS and you're concentrating on those two needles anyway. If you don't know how to fly an instrument approach; then EFIS is just going to get you killed as you chase the rectangles instead of fly the approach. On the rare occasion I do use them - generally on zero-zero approaches into a short strip under heavy icing, turbulence and precip at two in the morning - I use it strictly as verification, rather than as guidance.

Please explain why you would turn of EFIS.  EFIS is not those rectangles, it is an Electonic Flight Istrument System, with essential information needed to fly the particular airplane.  It varies in most aircraft, but the PFD always has the primary flight instruments displayed on it.

EFIS is not those rectangles, it is an Electonic Flight Istrument System,

All due respect, somebody needs to tell Microsoft this.

Open just about any FS9 .flt file with Notepad and you can find something like this -

[EFIS]
Active=False
Mode=VOR
Type=Rectangles
Density=Thin
Range=Short
NavAid=VOR 1
Altitude=0

So it's easy to see how someone could mistake the "Virtual Flight Path" for an EFIS.

regards,
Joe

For a Learjet, land between 125-135 knots. 160 is too high. You may use a little of the speed brakes to reduce your speed here and there on your final but do not extend it fully on final.

[quote]



Please explain why you would turn of EFIS.

Try taking your airplane to, say, 5000 ft. Set up a simulated normal final approach (gear down, full flaps, final approach speed). Trim the airplane so it maintains the right final approach airspeed and rate of descent, hands-off. Engage the autopilot and let it descend for, say, 1000 ft. Then disengage the autopilot. I think you will see that if the airplane is properly trimmed before you engage the autopilot, it will maintain its trimmed attitude when you disengage the autopilot.

Hope this makes it more fun for you.

Art

On the rare occasion I do use them - generally on zero-zero approaches into a short strip under heavy icing, turbulence and precip at two in the morning

Too many of these'll make you say almost anything

On the rare occasion I do use them - generally on zero-zero approaches into a short strip under heavy icing, turbulence and precip at two in the morning

Too many of these'll make you say almost anything

Habit I got into when I first started flying real auto pilots is that once I start the approach (before I've even intercepted the glide slope usually) I turn off the autopilot and fly the rest of the way by hand.

happens to me all the time when i forgot to trim the ailerons to their standard position before activating autopilot. At the time you press autopilot (on) it will head,climb,speed in the way youve put the autopilot. When you put the autopilot off the ailerons (in your case the ailerons therfore the dive) will automatically set back to the position before you activated the autopilot. So if your ailerons were downwards 30degrees before activating the autopilot they will return to 30degrees downward once you deactivate the autopilot.

in short....

after takeoff you put on autopilot, and remain on autopilot during the whole flight until landing on most ifr flights until you land and have to shut off autopilot. Then it returns to 30degrees downward and at 1000feet you wont have any anticipation to correct that aileron to zero. In real life it would also cause many g's forcing your body to even be unable to handle the steer at all let alone climb back. so make sure when you put on autopilot that your ailerons are set to 0 degrees.

happens to me all the time when i forgot to trim the ailerons to their standard position before activating autopilot. At the time you press autopilot (on) it will head,climb,speed in the way youve put the autopilot. When you put the autopilot off the ailerons (in your case the ailerons therfore the dive) will automatically set back to the position before you activated the autopilot. So if your ailerons were downwards 30degrees before activating the autopilot they will return to 30degrees downward once you deactivate the autopilot.

in short....

after takeoff you put on autopilot, and remain on autopilot during the whole flight until landing on most ifr flights until you land and have to shut off autopilot. Then it returns to 30degrees downward and at 1000feet you wont have any anticipation to correct that aileron to zero. In real life it would also cause many g's forcing your body to even be unable to handle the steer at all let alone climb back. so make sure when you put on autopilot that your ailerons are set to 0 degrees.

...don't you mean the "Elevator", which affects "Pitch".... ...!

Paul...G-BPLF...FS 2004..FS Nav....getting elevated... 8-)...!

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