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selected speeds, maybe the two are related and wreaking havoc on the autopilot prediction code. Given that getting this to happen seems to be somewhat dependent on managed vs. I'm suspecting that is occurring as part of the acknowledged STAR/descent speed calculation troubles. Note that the managed speed is way too low (there's no reason based on the STAR or MCDU that it should be under the VNAV descent speed at this stage (say 280 kt), but I wasn't necessarily concerned in flying speeds to the tee. The third and final time, I was looking to ensure I had solved the ILS problem (which I had) and it went nuts - and this time only being a test, I decided to let it run its course and see what it would do. The second time it did not happen (I was trying to figure out an ILS issue - which I reported here and resolved), however unlike the first time I was not running in selected speed (I'm not sure if that is important). LNAV approaches are the most basic of RNAV approaches and as such they usually have the highest minimums. During the initial flight, I quickly took over in selected mode. On two of the three times I've flown this (made a save at TOD), the autopilot went berserk on the tight LONEY-RODEE-EURRO turn. In what seems to be a related issue, I happened into this situation on one of my recent flights: But recently, I’ve downloaded A320 FBW, stable 27+ fps (don’t want to play in FSX 2003 graphics, but at least with FPS), which is enough for stable work. Turn begins distance "x" short of waypoint "WAYPT"Īt same distance "x" past WAYPT, a/c is offset from path by distance "w"Ī/C acquires plan over distance "y" - smoothly (FSX, P3D4 prior to 1.2.1.0) or with right bank (1.2.1.0) MrVetaLL November 1, 2021, 8:21am 1 I’ve read about 17 fps rule, that it can create problems with autopilot (which is especially bad, considering how widely spread memory leak issue is). Here's a diagram (somewhat exaggerated) to try and explain it visually: I'm suspecting since a selected turn is not trying to achieve a set path, such an issue won't occur as the AP will simply level out when it achieves the selected heading/track and isn't actually trying to acquire a defined path.
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I haven't noticed this in selected mode, but that's not to say it doesn't.
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I don't recall ever noticing this kind of behavior in the Aerosoft Airbus in any version prior, even on very sharp (acute) turns nor on any other payware aircraft of this caliber. Is the PIC in total manual control until AP is engaged Or does VNAV or LNAV help the pilot maintain the correct flight path The Captain seemed to be making very minor inputs on the yoke yet the plane was constantly changing pitch and roll angles prior to engagement of the AP. for a left turn (as most of them happened to be for this particular flight plan), it corrected with a short but sharp right bank to acquire the path. Since the most recent update, 1.2.1.0, however, this seems to have become a little more noticeable, in fact on my last flight I had a handful of turns (in the 40-60 degree range) where the turn completed with the aircraft somewhat short of the path and the AP corrected with a noticeable reverse bank to acquire the path - i.e. For all I know, maybe that's how the actual aircraft operates. Anyway, this has only been an observation, no big deal as the AP would eventually smoothly acquire the new path. Generally, all appears good until the AP begins rolling out of the turn it's as if it is aiming for a path that is parallel to the outbound path, but some distance before it. I never noticed this in the previous (FSX) version. deck loaded with advanced systems simulation (FMC/LNAV/VNAV/WXR/EGPWS etc) Cockpit states.
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This page was last updated 13:28 Tuesday 17th January 2023.One observation I've made with the Pro (P3D4) version since its release is that the autopilot maneuvering of turns, at least in managed mode, seems to be a little off. The Level D Boeing 767-300 is only for FSX and P3D V3 (i. SeeYou is a payware program to an analyse your flights using an IGC file.Ĭopyright © UK Virtual Gliding Association 2009-2021
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Ian Forster-lewis Program to add an IGC logger to the FSX Add-on Menu.Ĭambridge Aero Explorer Download (4.38 Mb)Ĭambridge Aero Explorer is a program to an analyse your flights using an IGC file. CumulusX! creates thermal lift with appropriate clouds.
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Get the glider polars from within FSX and then view them on the Polar ViewerĬumulusX! Find Peter's website on the links page.ĬumulusX! is an add-on for Microsoft Flight Simulator X only by Peter Lürkens for the creation of a soaring environment. WinchX! Replacement Voice Files V1.1 Download (591.2 Kb)
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Written by James AllenĬaiset Instruments Manual - Advanced Download (267.81 Kb)Īdvance usage instructions for Max Roodveldts' GPS-NAV, LNAV and CAF Variometer included in the more advanced gliders.Ī simple utility that enables muliplayer between FSX Boxed, FSX Steam and P3D, developed by Peter Memmott Have been getting introduced to the world of FMC programming using the JB 777 incredible freeware panel. Caiset Instruments Manual - Basic Download (437.18 Kb)īasic instructions for Max Roodveldts' GPS-NAV, LNAV and CAF Variometer included in the more advanced gliders.
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