Can these issues be fixed?

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Danpollard
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Can these issues be fixed?

Post by Danpollard » Wed Feb 01, 2023 3:26 pm

Since release there have been a few minor improvements, however there are still a few significant issues that remain:

- Aircraft still wants to float in flare even after the "retard" callout and engines are idle even if approaching at the red tape speed. The aircraft does not feel as heavy as it should.

- There is no travel to the landing gear shocks on landing- I feels like I am touching down in a small GA plane; there is no feeling of a cushioned touchdown that should exist in an aircraft of this size.

Ground handling/turning is still way overly sensitive, again for a plane of this size.

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RicardoLVFR
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Re: Can these issues be fixed?

Post by RicardoLVFR » Wed Feb 01, 2023 4:29 pm

We are continuously updating and improving things.

We are to look into the float, the plane does feel heavy, on takeoff and climb its pretty noticeable, we need to work on the flare phase.

As for landing gear shocks, remember this is based on the 320neo, does the 320neo feel the same?

Also you are not using any mod for it to work with the FBW?
Ricardo Morillo
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Danpollard
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Re: Can these issues be fixed?

Post by Danpollard » Wed Feb 01, 2023 5:01 pm

No I am on Xbox - the A320 has a little more flex/bounce to the landing gear I would say. However your aircraft lineup is still the best 3rd party aircraft we have available on Xbox in my opinion. Looking forward to where they go from here. Thanks.

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RicardoLVFR
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Re: Can these issues be fixed?

Post by RicardoLVFR » Wed Feb 01, 2023 7:24 pm

Danpollard wrote:
Wed Feb 01, 2023 5:01 pm
No I am on Xbox - the A320 has a little more flex/bounce to the landing gear I would say. However your aircraft lineup is still the best 3rd party aircraft we have available on Xbox in my opinion. Looking forward to where they go from here. Thanks.
Yes, it has to do with the values we applied for the landing gear. We will test more to see how we can improve that. And on the flare too.
Ricardo Morillo
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Danpollard
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Re: Can these issues be fixed?

Post by Danpollard » Thu Mar 16, 2023 7:28 pm

Aircraft still floats long after idling the throttle and will eventually just drop like a rock towards the end of the runway. V-speeds in the Mcdu also seem ridiculously high to the point of 10-20kts faster than they should be...

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RicardoLVFR
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Re: Can these issues be fixed?

Post by RicardoLVFR » Thu Mar 16, 2023 9:33 pm

Danpollard wrote:
Thu Mar 16, 2023 7:28 pm
Aircraft still floats long after idling the throttle and will eventually just drop like a rock towards the end of the runway. V-speeds in the Mcdu also seem ridiculously high to the point of 10-20kts faster than they should be...
It is now we are beginning to actually get into this. We are trying to make it better and that's our main goal now.
Ricardo Morillo
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Danpollard
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Re: Can these issues be fixed?

Post by Danpollard » Sat Mar 18, 2023 7:13 pm

Good to hear. Honestly the floating issue and over-senstitive flaring seems to happen more in the LEAP variants and less in the PW's... It would be nice for all the aircraft to feel a bit more "heavy"

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7heAngryVe7eran
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Re: Can these issues be fixed?

Post by 7heAngryVe7eran » Thu Jan 18, 2024 12:31 pm

Danpollard wrote:
Sat Mar 18, 2023 7:13 pm
Good to hear. Honestly the floating issue and over-senstitive flaring seems to happen more in the LEAP variants and less in the PW's... It would be nice for all the aircraft to feel a bit more "heavy"
Danpollard,

This is an older post, but I would like to take a moment to explain the importance of simulated aircraft having correctly calculated Moments Of Inertia, or MOIs, for the pitch, roll, and yaw. The result of each MOI calculation is input into the flight_model.cfg for the aircraft. This, along with many other factors, determine how the aircraft 'feels' during it's operation. The higher the MOI, the 'heavier' the aircraft feels. However, making the aircraft feel heavier can cause issues such as the aircraft nose gear skidding when attempting to turn during taxi.

"The moments of inertia give the mass distribution of an aircraft relative to the roll, pitch and yaw axes. These values relate to rotational accelerations as mass does to translational acceleration. The big difference is that MOI's are different about each axis where mass is the same for any direction of acceleration. And, the MOI differences about other axes combine to change the response about an axis. This means that it is important to get these values close to the right values in order to have a good general representation of the response of the aircraft to control inputs, especially when an input is followed by complex motion such as a spin." -Tom Goodrick

The equation to calculate MOIs is endorsed by Professor Roskam who teaches aeronautical engineering at Kansas State university and has written several sexts on the topic. He gives lectures to NASA and to all the aerospace companies including Beechcraft and Cessna. His method is based on dimensionless radii of gyration for basic aircraft types which are given in tables he publishes.

As for the suspension, there are several parameters in the aircraft contact points that can be adjusted to increase or decrease the rigidity of each landing gear. However, the softer the suspension is made, the more the aircraft will squat when carrying a large payload and 'lean' when taxiing, especially if this aircraft has a large wing span. It can also cause the aircraft to be difficult to control during takeoff and landing.

With all this being said, it's important to understand that the best attempt is being done to recreate these aircraft to handle realistically. It can be difficult to please every user, whether it be flight simulation enthusiasts or real pilots, with the parameters that were calculated and used.

We appreciate your input and will consider making changes to these parameters in the future based on user feedback and further testing.

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7heAngryVe7eran
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Re: Can these issues be fixed?

Post by 7heAngryVe7eran » Thu Jan 18, 2024 12:37 pm

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