Cessna 208B Prop Speed at Idle

Bug Reporting Hub Aircraft & Systems
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53

In my case, I use SPAD.neXt to write to SIMCONNECT:AXIS_THROTTLE1_SET, but because it has both “axis” and “set” in its name, I can’t say which one it is :sweat_smile: If I use “-16384” for lowest lever position, it uses the full beta range. Through my testing I have identified the value “-11517” as the value where it stops just at flight idle, but it still overspeeds the prop there. That value is at around 14.85% lever position when using the full range.

54

as mentioned above, i use this throttle curve on the THROTTLE SET axis

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and thus avoid needing to use spad.next.

55

I also have this same issue, but today after hours of stupid back and forward into the settings, i was able to “fix” the issue by assigning 0.01 extremity deadzone to my throttle axis. I am using an old saitek x52 so no fancy detents for me.

It gives me 99.6 at full throttle which i think is good enough. As you can see below, it clicks into flight idle and doesn’t overrev.

FlightSimulator2024_x7bHK5Ypbp
FlightSimulator2024_x7bHK5Ypbp1064×1303 275 KB

56

Your advise to adjust throttle dead zone saved me a not only day! :smiling_face_with_three_hearts:

Now idling throttle during flight will not act as aerobraking during approach or descend.

THERE IS A BUG: **END VALUE OF THROTTLE AXIS IS IN DEED IN BETA!

This is really killer bug of this airplane, together with wrong autopilot roll PID values, which results in constant waving of wings when directional AP is engaged - described here:**

with temporal fix mod:

https://flightsim.to/file/94786/cessna-c208b-caravan-autopilot-roll-fix

57

Discovered a great tip from someone on Facebook for landing the caravan though it wouldn’t be done in real life

Full flaps for stability

Blue lever 45-50 percent

Low idle (irl only done on ground)

Alternate throttle from 0 to 55 percent.

Works a treat. You can easily get the speed down to land her

58

POH landing gouge is pretty great too. The “Alternate throttle from 0 to 55 percent” advice seems excessive, but if it works for you…make it happen Cap’n. :saluting_face:

59

:joy: Yeah, maybe excessive but at the moment that’s the only way I can slow the girl down and not have her bouncing up and down the runway.

60

Use the beta range as needed.

61

Yeah, I use the beta range once landed but to slow her down for landing iuse low idle then on the threshold RB + B on xbox controller to knock her down into idle then RB+b into beta for taxi

62

If you’re having to drop condition to low idle to get the plane to touch down there is a flight model or engine modeling issue.

63

I tried leaving the idle in high yesterday as the new beta patch arrived. With no stutters I was able to land several times at a decent low speed.

64

Hey guys, experienced this myself now while expediting descent, I recorded it here - https://www.youtube-nocookie.com/embed/3Sh1tz5Vlhk

Is this the same issue? Or am I doing something wrong?

The speed is within flaps range, so I doubt it would be windmilling. The torque also goes negative for a moment..

EDIT - FOUND THE ISSUE
Okay so the issue is that the throttle is going into Beta range, I moved it with my mouse on the video so it’s better visible while normally I use a thrustmaster throttle and I thought I have to explicitly switch the throttle lever to allow beta range. What is happening when I use my throttle instead of stopping at idle it goes a bit lower into the beta range. I have reverse thrust binded separately, so that’s why I thought it is not possible to use the beta range without toggling reverse thrust first. Well, it looks like it is.

Still no clue how to solve it thought, I tried tweaking the action curve but setting the extremities deadzone also limits my full thrust capability..

65

Configure the curve as in the screenshots above to get the same result with your Thrustmaster throttle.