Auto Pilot changed?
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I am pretty sure the auto pilot has changed. When I do a turn to kill time to the next way point to meet up with the other packages, I do a turn with Alt Hold and Att Hold swtiches on. Then when I want to come out of the turn and head to the next waypoint I switch Att Hold to Strg Sel with Alt Hold (i.e. AP) still on. The aircraft behaves as expected but the next time I switch off Strg Select and go back to Att Hold (to check on timing for other waypoints for example), the aircraft immediately goes back into the previous bank angle when I was doing the circle. I am pretty sure that it used to just switch to the current attitude and not remember the previous attitude. Is this supposed to be this way or this something that has come up since the last upgrade?
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I am pretty sure the auto pilot has changed. When I do a turn to kill time to the next way point to meet up with the other packages, I do a turn with Alt Hold and Att Hold swtiches on. Then when I want to come out of the turn and head to the next waypoint I switch Att Hold to Strg Sel with Alt Hold (i.e. AP) still on. The aircraft behaves as expected but the next time I switch off Strg Select and go back to Att Hold (to check on timing for other waypoints for example), the aircraft immediately goes back into the previous bank angle when I was doing the circle. I am pretty sure that it used to just switch to the current attitude and not remember the previous attitude. Is this supposed to be this way or this something that has come up since the last upgrade?
Not sure if you have a typo up there, but AutoPilot is only on when you have the right switch set to Attitude Hold (Pitch Angle) or Altitude Hold (level at current when switch turned on) – the left switch is Steering or Heading or Nothing (Off), based on HSI Heading Bug or Current Steerpoint, of course… So you do a turn with Alt Hold -OR- Att Hold switch on, but not both. If your stick is centered, turning on either Steering modes will cause the aircraft to roll if either current Steerpoint is not directly ahead, or if the HSI Heading Bug does not match your current heading.
Are you sure when you are 'turning off Strg Select" you are not actually turning it past “Off” to the “HDG SEL” ? Because that would most certainly cause a bank if HSI not set to current heading… Att Hold always attempts to capture the current Pitch Angle, and has nothing to do with bank angles.
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I am using Alt Hold or Att Hold, in this case with AP on Alt Hold… I understand how it works… I am using a panel with switches … that wasn’t a typo just a bad explanation… I use the AP all the time and have done so ever since I started using the panel… and I fully understand that to activate Hdg Sel, Att Hold or Strng Sell the AP switch must be up or down in Alt Hold position or Att Hold position. This behaviour is new to me, it definitely remembers the previous attitude.
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Not sure if you have a typo up there, but AutoPilot is only on when you have the right switch set to Attitude Hold (Pitch Angle) or Altitude Hold (level at current when switch turned on) – the left switch is Steering or Heading or Nothing (Off), based on HSI Heading Bug or Current Steerpoint, of course… So you do a turn with Alt Hold -OR- Att Hold switch on, but not both. If your stick is centered, turning on either Steering modes will cause the aircraft to roll if either current Steerpoint is not directly ahead, or if the HSI Heading Bug does not match your current heading.
Are you sure when you are 'turning off Strg Select" you are not actually turning it past “Off” to the “HDG SEL” ? Because that would most certainly cause a bank if HSI not set to current heading… Att Hold always attempts to capture the current Pitch Angle, and has nothing to do with bank angles.
Based on Dash one and own observation the left switch is not Steering or Heading or Nothing (Off) it’s Sterring, Roll ATT Hold, Heading
The autopilot provides the following modes:
• ROLL Attitude hold
• Heading select (HDG SEL on ROLL switch)
• Steering select (STRG SEL on ROLL switch)
• Altitude hold (ALT HOLD on PITCH switch)
• PITCH Attitude hold1.14.4. Attitude Hold (ROLL)
Placing the left ROLL switch to ATT HOLD commands the aircraft to maintain the current roll attitude. Angles above or below 60° in roll will not be captured. Stick steering and paddle override remains available with the known restriction of each mode. -
Okay, so I am returning from a mission, Right switch(Pitch) on Alt Hold, left switch(Roll) on Att Hold and aircraft is wings level pointed to my next waypoint, but I am a little left of the plot line. So I bank right and let the stick go and the aircraft maintains the bank angle… this is what I expect. When I get on the plot line, rather than turn on course with the stick I simple turn on Strg Sel… i.e. left switch (Roll) down to bottom position and as expected the aircraft turns onto the waypoint and wings are leveled. At this point everything looks fine and as expected. However, when I switch off Strg Select… in other words left switch (Roll) up to centre position or Att Hold I expect the aircraft to maintain current attitude but instead it immediately banks to the previous Att Hold bank angle that was set before I went to Str Select. I have done this countless times before with results as I expect but now with this latest upgrade it seems to have put the Att Hold bank angle into memory somewhere. This is not the way it used to work…try it. Fly straight and level with Alt Hold set to maintain altitude with Roll switch set to Att Hold. Now bank left or right for a few degrees and then switch to Strg Select… the aircraft will turn to the next waypoint… when straight an level switch back to (Roll) Att Hold and the aircraft will resume the previous bank angle.
Something else I have noticed with this update, the the elevator doesn’t appear to droop after the hydraulics bleed off after shutdown. This is purely eye candy of course but something I love watching, kind of makes the jet feel more real… when I landed today I was at a new airbase so I followed my flight into to the parking area to see where it was supposed to be, as I passed my wing man who was already shut down I noticed his elevator did droop but when I parked, shut down and sat outside watching for several minutes, there was no droop on my elevator. This is not a biggie but just an indication that something has changed.
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This post is deleted! -
Many things have changed
That is the concept of updates
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So that is corrected behaviour then? When AP is on and you switch from Att Hold to Strg Select and then back to Att Hold the previous Att Hold will remain the same? I have no problem with it if that is RL in fact, even better, but it is a new feature that made me wonder if that is correct. If so, great, thanks to the dev that corrected it.
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So that is corrected behaviour then? When AP is on and you switch from Att Hold to Strg Select and then back to Att Hold the previous Att Hold will remain the same? I have no problem with it if that is RL in fact, even better, but it is a new feature that made me wonder if that is correct. If so, great, thanks to the dev that corrected it.
What has been changed is that the left “ROLL ATT HOLD” (which means ROLL control in last known ROll position) was not active in ALT HOLD , that was a bug. 4.34 fixed that.
The fact that the last known ROLL position is not reseted when switching from STRG SELECT or HEADING SELECT is not a new thing but is a bug.
a new reference should be taken when the switch is moved to ROLL ATT HOLD again
You see the bug now, because before the ROLL ATT HOLD was inactive in ALT HOLD hence you couldnt see it…
good catch
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as far as the elevator movement after engine shut down,
the hydraulic “natural” depletion rate, without command input has been adjusted.
it takes between 7 to 8 minutes for the hydraulic pressure to be depleted after engine shut down…