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News:
Precision Simulator update 10.120 (2 August 2020) is now available.
Aerowinx NG FMC and More is now released.

Recent posts

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1
Hangar 7 / Re: Crosswind landing techniques for Dummies :-)
« Last post by Jeroen Hoppenbrouwers on Thu, 6 Aug 2020 23:48 »
Try it this way.

Fly 10 nm out and let the AP intercept and track the localizer. Then closely monitor what it does to remain on the localizer.

Note the crab angle. Your nose points not at the runway, but left or right of it, this is your heading. Your over the ground track should be dead center on the runway. The difference is the wind correction. No bank required! Just your heading.

To make small heading corrections, keeping the track aligned with the runway, the AP makes small bank corrections, left and right. But almost invisible. Look at the FD and the aileron positions or the yoke. It's small. Your track and heading stay almost static and the plane only wobbles a bit.

Then once you know the numbers, disconnect the AP and do it yourself. Just the localizer. Forget the glideslope.

Fly 99.99% of the approach just using this technique, crab into wind. You can as well use a VOR radial or any other straight line over the ground with wind from the side.

Only just just just before touchdown, you have to do something to avoid touching down with too much crab. You're not a B52. One smooth squeeze of rudder to align the aircraft with the runway, and onto the tarmac. Flying without a crab means drifting aside, so you want to basically not do that. Go from plane to car and become a car just at touchdown, simply stated.

https://www.youtube.com/watch?v=A1lpoZDjt00      <-- B52

Hoppie
2
Hangar 7 / Re: RTA: INVALID ENTRY
« Last post by Hardy Heinlin on Thu, 6 Aug 2020 23:48 »
Fantastic. This confirms my theory of the cost index based RTA calculation process. Thanks. The same happens in PSX. To determine the (lower) RTA speed, the FMC decreases an internal cost index (not the CI shown on the PERF INIT page) a bit and checks if the new ETA matches the RTA. If not, it decreases the CI further, and so on. The RTA speed is an ECON speed, not a SEL SPD, so it has to calculate the RTA speed by several iterations of various CI settings. Only when the best holding speed is reached, the RTA speed is no longer cost index based.

When the RTA is an A/B time frame and the current ECON speed keeps the ETA within that frame, the RTA speed simply uses the current ECON speed and cost index.


|-|ardy
3
Hangar 7 / Re: Crosswind landing techniques for Dummies :-)
« Last post by vnangli on Thu, 6 Aug 2020 22:58 »

Not sure, what you mean with fishtail effect... but basically you have to fly an angle into the wind (the crab angle).

Good luck!

CRAB angle is the term I should have used...
4
Hangar 7 / Re: Crosswind landing techniques for Dummies :-)
« Last post by Will on Thu, 6 Aug 2020 22:42 »
Quote
How would lining up on the extended centerline be achieved, strictly with ROLL and when there is a crosswind?

No need for the rudders. When you smoothly bank with the ailerons, the heading will change, and that will eventually put the aircraft on a different track. When it is on a track that leads to the runway, roll the wings smoothly back to level. You don't need to use the rudder to roll into a bank, hold the bank until you are on the desired track, and roll the wings level again.

Remember that with a crosswind, the nose of the aircraft won't be pointed at the runway itself, because you'll be flying in a crab.
5
Hangar 7 / Re: Crosswind landing techniques for Dummies :-)
« Last post by Dirk Schepmann on Thu, 6 Aug 2020 22:40 »
I am 2500 feet above, 7NM miles landing on 28R (KORD). At the point of disengaging the A/P and autothrottle, I notice I am not on Extended centerline (I am to the left of the MAGENTA diamond) and there is crosswind (16-18) from the RIGHT. When I apply AILERONs at this point, it seems like I am having a Fishtail effect (excusing me for not using the technical word). Do I still not use RUDDERS at this point?

How would lining up on the extended centerline be achieved, strictly with ROLL and when there is a crosswind?

Not sure, what you mean with fishtail effect... but basically you have to fly an angle into the wind (the crab angle).

So when the localizer starts to drift away from the center, you‘ll initiate a slight turn into the wind. When the localizer starts to move back, you‘ll change the heading back towards the runway heading, but just a little bit. Enough to keep the localizer centered. Often you have to repeat this a few times until you find the necessary Wind correction angle.

The stronger the crosswind is, the greater the correction angle is... it might even look scary at strong crosswinds. But under most circumstances it will be a small correction angle which can be easily corrected with the rudder at or immediately after touchdown.

I’d suggest to create a training scenario with constant crosswind with 10-15 kts. Fly it often, get a feel for the sim and your hardware. And be gentle with the controls, make frequent small corrections instead of big corrections.

Good luck!
6
Hangar 7 / Re: Real 747-400 Operations Manual
« Last post by Ton van Bochove on Thu, 6 Aug 2020 22:18 »
This is not a operational manual but a description of the systems. If you want to learn about the 744 it worth buying it but the aerowinx manual will probably tell you the same thing and is more up to date
7
Hangar 7 / Real 747-400 Operations Manual
« Last post by ukwildcat74 on Thu, 6 Aug 2020 20:46 »
I was looking to snag a real 747-400 Operations Manual and they certainly can be found, e.g..

https://www.ebay.com/itm/333568995329?ssPageName=STRK%3AMEBIDX%3AIT&fromMakeTrack=true

But my question to you folks is: is this worth it? Is there a better source - or even a better manual - for learning more of the innards of this beauty that is sadly fading in the real world?
8
Hangar 7 / Re: Crosswind landing techniques for Dummies :-)
« Last post by vnangli on Thu, 6 Aug 2020 20:45 »
My question might sound a little silly, but please bear with me...

Okay, my latest challenge is "ROLLing" during crosswind.

I am 2500 feet above, 7NM miles landing on 28R (KORD). At the point of disengaging the A/P and autothrottle, I notice I am not on Extended centerline (I am to the left of the MAGENTA diamond) and there is crosswind (16-18) from the RIGHT. When I apply AILERONs at this point, it seems like I am having a Fishtail effect (excusing me for not using the technical word). Do I still not use RUDDERS at this point?

Don't touch the rudders unless you have an engine out.
If you use the flight director, it will give you nice hints.

Did I say don't touch the rudders?


PS. Don't touch the rudders.

How would lining up on the extended centerline be achieved, strictly with ROLL and when there is a crosswind?
9
Hangar 7 / Re: RTA: INVALID ENTRY
« Last post by emerydc8 on Thu, 6 Aug 2020 20:15 »
I had a chance to experiment and see what happens when asking the FMC for an RTA that would require it to slow below the best holding speed. As you can see, it took about 90 seconds for the FMC to figure out it was unable. I didn't execute in this video but when I did, the speed would slow to correspond to whatever RTA speed it was showing. Interesting how it displayed the incremental decrease in speed until it finally gave up.

https://youtu.be/RB3typitiPk

Jon

10
Accessories / Re: NEW: PSX_Wheramium, a moving map
« Last post by Kabbers on Thu, 6 Aug 2020 19:57 »
Thanks Martin, I'm using Whereamium, it rocks, and want to thank you. I am running it well on Win10/Chrome, I tried setting the .ini variables you document to the more demanding levels and I get a very smooth scrolling map indeed with no frame problems.

I do have a little bit of trouble reading the very small lettering on the place name labels on the MAP+LABEL map option, the letters seem to flee from me and get smaller as I zoom in to try to read them, haha, so it would be ver nice if the place name letters stayed stayed bigger but - hey - it's also totally easy to hit the Disconnect button and zoom in to read the place labels that way. Thanks again Martin - marvellous addon!

Cheers and best wishes,
Kabbers
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