H-125 function and visuals issues

Sim Update 2 Beta | MSFS 2024 Aircraft & Systems
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1

ISSUE DESCRIPTION

Just sat down and found all the current bugs with the H-125 currently in SU2

  1. The Off/Day/Night switch for the VEMD is way off. Off is Day, Day can be night with tons of bloom, but lit instruments, and night is a dimmer dashboard with no bloom, but also no lights on the instruments. It seems to change each time you load in on what combo you get (was fine in previous versions other then the bloom issue on the lit dashboard parts) (New for SU2)

  2. The System Light, Instrument light, Radar Altimeter twist knobs, when in VR will reset partway though twisting with a VR controller. Using a mouse scroll wheel, they operate fine. (was fine in previous versions) (New for SU2)

  3. The Main VEMD display at night has a point where it goes from dim to overdriven bright bloom with a single click either way of the brightness buttons in the lower right of the display. (New for SU2)

  4. The aircraft has a new bug where when there is camera movement, all of the lights interior and exterior blink off and then back on. This can be very brutal in VR as the ā€œcameraā€ is constantly moving. (New for SU2)

  5. Horn works with both battery and generator off (New for SU2)

  6. The Rotor Speed Tach is no longer showing the two arches that fills as you gain and lose rotor RPM and engine RPM, (was fine in previous versions) (New for SU2) (fixed in 1.4.9.0)

-----------------Below this line is old bugs still existing since launch------------------

  1. The radar altimeter warning beeper when you hit the set altitude does not work (not working since launch)

  2. The twist knobs for the rear desk lights are reversed, Correct is clockwise to make brighter, counter clockwise to dim. The front lights work like this and are correct

  3. The dashboard overall at night has way too much bloom effect, some can be lessened, but some indicators and buttons are always on max brightness and bloom. The GPS has zero brightness control so is maxxed out at all times

  4. If you use Ctrl+E to start the aircraft on the ground, or an aircraft crash happens, the aircraft does not have the Fuel pump or the Anti-collision lights turned on when it resets (has not worked since launch)

  5. After doing anything that requests a lot of power input from the engine, the aircraft can lose all engine sounds. This can be pulling collective quickly during flight, it can be idling on the ground and then rolling throttle to flight mode. It seems any action that takes you out of the cockpit (pausing, external view, going to on foot and then back in will bring sound back.)

  6. H-125 fuel use is double what it should be.
    H-125 fuel use doubled
    (fixed in 1.4.9.0)

  7. Water is flowing the wrong way on several windows
    H-125 Rain flowing wrong way on several windows

  8. Gyroscopic procession is not being modeled in any helicopter, had to move to the wish list because it is not existing at all
    Gryoscopic Procession is not being modeled

  9. Aircraft does not have a transponder installed. (existed since launch)
    (Fixed in 1.4.11.0 Sim Update 2 Beta 2)

  10. Cable operated rotor brake requires battery power to be on to work.(fixed in 1.4.9.0)

  11. GPS is turning on with battery, and not tied to avionics switch.

If applicable, which aircraft is experiencing this issue:

H-125

No addons

Always since SU2 for MSFS 2024

REPRODUCTION STEPS

  1. Recreation steps are in the description for each issue.

No dev mode

4090 video card

MEDIA

[END OF FIRST USER REPORT]

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1 Like
2

Can you trim it worse since SU2 also?, like less precise in each trim touch?

1 Like
3

Sadly that is not something I can test, I use a fully built cockpit with a proper collective and cyclic, so I have zero need for trim, someone else will need to confirm that.

1 Like
4

I quite agree with what has been said here.

I would add that with the h125 and the r66 I also have a bad sensation in VR due to a continuous high-low shaking effect.
The vibrations may give a realistic effect on screen, but in VR for me itā€™s very uncomfortable.

I observe this problem much less on other helicopters, or very slightly on the Cabri G2.

5

Sorry to stray from the bugs you mentioned, but since you said you use built cockpit, I canā€™t help but ask: besides the bug with the artificial horizon ball, have you noticed that the engine power during flight is a bit too much? Even when I push the pedal all the way, I canā€™t seem to balance it out. I always fly with the helicopter slightly tilted to compensate for this effect. Iā€™m surprised I havenā€™t seen any comments about this issue, and I wonder if it might be due to my device settings (MS FFB2+Ch pedals without spring).

6

appears to ok again in v1.4.9.0 :+1:

1 Like
7

So bit of background, I have flown the H-125, so is why I focus so much on it, because I want it to be the best it can be. I have my commercial and IFR ratings.

For your question, because of the position of the tail rotor, being above CG, you can use the anti torque to roll the aircraft slightly, to regain that level flight, and then crab into the wind as you would normally do. At speed, the built in angle of the vertical stabilizer provides most of the directional stability essentially via weather veining.

I am not 100% but I believe that there is a lot of gyroscopic forces not being applied properly, which would explain the current behavior.

When transitioning from a hover to forward flight, as the forward part of the rotor breaks into undisturbed air, generating more lift, gyroscopic forces happen 90 degrees later, so the aircraft will try to lift the retreating blade on that side. This will cause a slight roll to the side that the pilot has to compensate for.

Then the advancing blade will break though, and there will be a slight pushback as 90 degrees later it is in front.

Same thing when going so fast that you are supposed to hit retreating blade stall, there is a large gyroscopic force pushing you back, causing you to slow down. Right now you can push though it and the aircraft just takes it.

I do not see any of this happening in any of the helicopters, and because I am not an airplane pilot, I am not sure if there are those forces are happening in airplanes as well.

Returning to the original question, I believe that the aircraft is canted those few degrees to one side because the gyroscopic forces during that phase of straight and level flight are just missing. All of the above is just other phases that it is really noticeable they are missing

4 Likes
8

Thank you, confirmed it myself as well, will just mark that off in the OP

9

I appreciate your detailed response. What you mentioned seems reasonable and would explain that requirement to have to slightly roll the helicopter, as I mentioned in my previous post, to keep it on course during cruise since I find that the pedal correction is not sufficient. Thank you for helping me understand the physics involved.

10

Has there been any word if the h125 will get a transponder?

11

Is it correct behavior that the cyclic has to be constantly kept in a far forward position to maintain cruise speed? In other words is the cyclic position accurate for cruise flight in your experience?

12

Thatā€™s normal as I understand it. You have to trim it with the hat switch like other aircraft. It currently does not have the ā€œpress button - recenter stick - release button - now youā€™re trimmedā€ functionality.

13

Iā€™m not talking about trim, which the real hell doesnā€™t have. Like the OP I have a full-size cyclic system without restoring forces. I understand that the cyclic has to be pushed forward to accelerate in terms of forward speed, but I am a little doubtful that almost full forward travel is required to maintain cruise speed. Thatā€™s the question Iā€™m asking.

14

Full forward is not needed on the real thing, no.

Again, a side effect of the gyroscopic forces missing.

I believe that it not being simulated is why the outlier control issues are not behaving as expected.

When going forward at full speed and being able to use only collective to control the aircraft pitch makes me wonder if it is a canned input effect instead of dynamic.

15

I have added that, thank you for reminding me. Ī˜7

1 Like
16

Im not positive about the real life model, and its recently been confirmed that Asobo has patched together aspects from different squirrel models.
But we DO have a quick trim available in the sim which can be used for all helis.

image
image1136Ɨ548 64.7 KB

this video helps to explain this interesting an helpful control

17

Quick trim/force trim does not exist on this helicopter in RL, so is not a factor when I am doing these reports.

The way it works in the sim is ā€œfakedā€ to allow those with centering joystick to fly it without having to put pressure on it for hours at a time.

1 Like
18

Regarding to the actual state of the manual trim, I think the Force Trim is more close to the real model than the manual trim in the helicopter, so it is more close to the real to use Force Trim haha, even reading a few days a real H125 pilot that told that this helicopter flights even smooth an linear without the necessity of trim it, so use Force Trim is more close to the real one haha.

19

No, the real one does not have it at all

I have flown the aircraft in RL, it has hydraulics, which it will not really move unless you are the one to give that input.

The force trim in MSFS 2024 is a gamification option to let people fly it without wrecking their arms and wrists pressing against a fighter stick style spring for hours

1 Like
20

Maybe an older model with trim, maybe the Ecureuil?. So the cyclics and plane jokes IRL donĀ“t have springs to recenter haha, better then yes, thanks.