Real World Pilots, please state your feedback about the flight model

Frise / differential and rudder-aileron coupling or a combinations of those are calibrated for cruise speed, anything above or below and adverse yaw will be noticeable. Because of propeller slipstream effect adverse yaw is increased or reduced depending on direction of turn.

But unfortunately FS2020 does not do a great job simulating any of those effects.

Props in FS2020 for some reason do not feather and only let the ITT shoot-up. I assume you mean condition levers on the ground as in the air they serve no purpose.

My biggest problem with the FS2020 Kingair is the lag of propeller drag. It just doesn’t decelerate and keeps floating in ground effect for ever. The real aircraft falls from the sky pretty quickly when pulling the power to flight idle.

2 Likes

Agreed. Did a fair bit of work ferrying crews into unimproved strips. Wasn’t a twin otter but dumping full flap and chopping the power was enough to peg you into the shoulder straps. Like tossing out an anchor. In MSFS I can pull off the power 15 nm out and coast to the threshold. Yup, not quite right.

ADD: yes, ground ops. No Beta. Would burn up brakes pretty quick in MSFS, even doing s.e. taxi.

As most of my time in the 350 was dirt strips in the middle of BF, we didn’t use much flair. Steep, full flap, plant it and brake. That technique works pretty good in MSFS. Fly it onto the ground rather than set it onto the ground and you can hit TD targets even with the silly GE modelling.

2 Likes

Hello Nijntje91, I think I have fixed the “workhorse floats like a performance glider” problem in the aerobatics airplanes Cap10, Extra, Pitts. Now I need 25% to 40% throttle before landing. Please test and tell me: http://www.andreadrian.de/FS_2020_sailplanes/index.html

1 Like

You were able to add propeller drag? That’s great news, how did you do that?

Which are the cfg entries for this which actually react to the modern FDM changes?

Previously it was only possible to play with the overall aircraft drag figures.

Speaking for the C-150’s, think an excellent modern flight model! No need to change it right now. BTW, I love this sim.

1 Like

I’m a newer pilot. I fly a 1976 Cessna 172 180HP conversion in RL. I think the experience largely depends on what type of controls you’re using. I came in at a bad time where buying flight yokes, throttles, and pedals were like trying to find a roll of toilet paper during COVID-19 lockdown.

I’ll start by saying, the bugs have taken from the overall realism (mine are mostly controller related). I started by using my Xbox One controller, and the rudder pedal issues were kind of a deal-breaker on that. All things considered, I think everything is pretty well modeled. Landings, however, feel very robotic. I would say that choppy air is more common in real life than it is in FS2020, and some of the planes don’t perform as they should. The RPM increase on the 172 when leaning the mixture threw me off a bit because it just doesn’t happen when the prop is loaded. I’ve never flown a Bonanza, but I’m pretty sure the cruise speed in-sim is not accurate for that model.

I mainly started using FS2020 because my plane is in the shop. Also, it’s not IFR rated so I can practice my instrument approaches in FS2020.

I have over 350 TT between c152, c172, Sundowner c23 and Beechcraft 76 Duchess which is not much. Im also an instrument rated pilot in the US and let me tell you as of today MSFS do not even come close to X Plane 11 when it comes to aircraft simulation. After the pretty clouds, water and photogrammetry MSFS has nothing. All of their airplanes are pure garbage.

1 Like

Yes RPM does increase on a “loaded prop” when leaning the mixture. When flying at high altitude with full rich mixture, leaning will give a definite performance benefit and therefore increase in RPM on a fixed pitch prop or increase in blade angle on a constant speed prop.

If you are referring to the performance increase on ground with a full rich mixture, that is a bug indeed.

1 Like

The mixture response just seems off to me. It could also be that I’m used to flying a 172 that’s suffering from carb and mag issues. I’ve hauled it off to my A&P to get worked on. Maybe it will lean out differently when I get it back.

The performance increase at low altitude is actually a bug in FS2020, you can see the fuel flow actually going up at first when leaning before going down.

The lift drag parameters are:
induced_drag_scalar
flap_induced_drag_scalar
drag_coef_flaps

Flaps are not an drag parameter select switch. The flap drag parameters are “modulated” by the flaps angle, that is the drag is larger at 40° flaps angle then to 15% flaps angle.
I hope this helps.
I am a little unhappy about tuning take-off without flaps and approach with flaps. But this is the tuning I can do now without waiting on Asobo/Microsoft.

Commerical pilot here. I would report any issues and inaccuracies I find via zendesk. These include flight model behavior / aerodynamics, mechanical behavior (front wheel steering on ground), systems behaviors.

Too many issues to list here.

I find the community mods / tweaks to improve some aircraft dramatically. I enjoy flying the modded DG40 and Bonanza. Hopefully, Asobo will make use of these community mods and integrate them eventually.

What I haven’t reported yet: with some normally aspirated piston engines, mixture control is too touchy. Usually, such engines, according to their manuals, are run at mix full rich up to 5000 ft density altitude at full throttle. There are more issues with the modelling of engines, both piston and turbine though.

2 Likes

This is the best thread in this entire forum and should be kept alive, open, maintained and monitored for as long as possible.

5 Likes

I had hoped that you were able to alter propeller drag.

Concerning flap drag; Flap drag doesnt’t increase linear with flap deflection, hence it’s often necessary to add a second flap section which additionally increases drag for flap angles greater than ~15°.

Agreed, from 0 to 15 degrees of flaps for example the increase in lift is substantial with a minimal increase in profile drag while from 15 degrees to 30 degrees flaps for example the increase in lift is minimal but the increase in profile drag is substantial.

Thank you Nijntje91. This 15° flaps increase lift, no (or only little) increase drag, 40° flaps reduce lift, increase drag are hard-coded or table driven. I have to check.
Everything hard coded and not documented is real fun for everybody who wants to make a good flight model.

Everyone, its off topic but maybe you find this interesting:

40° (or even 50°) increases lift.

Absolutely agree with you, unfortunately it seems, that for a general public it is not that important hence at the moment it is not Asobo priority to further tweak flight model (sadly)