Propeller feathering in flight
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I think there might be an issue (perhaps it is an MSFS limitation) with propeller feathering. My understanding is that when oil pressure is lost, the propeller will move towards the feathered position. I sometimes try to simulate an engine failure on one engine after takeoff. But unless I am really quick in doing so, the prop just keep spinning, even after putting the prop lever into the feather position. Could perhaps Nick (the developer) comment on this? I know that the relative wind makes a propeller spin, but is that simulation within MSFS 2024 entirely accurate?
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I think there might be an issue (perhaps it is an MSFS limitation) with propeller feathering. My understanding is that when oil pressure is lost, the propeller will move towards the feathered position. I sometimes try to simulate an engine failure on one engine after takeoff. But unless I am really quick in doing so, the prop just keep spinning, even after putting the prop lever into the feather position. Could perhaps Nick (the developer) comment on this? I know that the relative wind makes a propeller spin, but is that simulation within MSFS 2024 entirely accurate?
@kyrre1978 said in Propeller feathering in flight:
simulate an engine failure on one engine after takeoff
I think this is the key part of your message. At takeoff, the propellers will be at their fully fine position. In this position, a loss of oil pressure due to engine shutdown will likely not be enough to feather the propellers. If you look at the engine visualizers, you will see the feather locking flyweights/pins (sometimes called "start locks") in the propeller hub that prevent the propellers from feathering during a normal shutdown. It's important to move the propeller lever to feather quickly after shutdown, before the propeller RPM drops below the speed at which the pins will hold the blades in their fully fine position.
Does that seem to match what you're looking at in the simulator?
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Thanks Nick. I will have a look into it the next time. Do you happen to know any possible solution for this MSFS control issue that makes it difficult to put the props into feather using Bravo throttle quadrant? I can get it back almost to feather but I have to use my mouse to completely put the prop lever into feather..
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Thanks Nick. I will have a look into it the next time. Do you happen to know any possible solution for this MSFS control issue that makes it difficult to put the props into feather using Bravo throttle quadrant? I can get it back almost to feather but I have to use my mouse to completely put the prop lever into feather..
@kyrre1978 said in Propeller feathering in flight:
Thanks Nick. I will have a look into it the next time. Do you happen to know any possible solution for this MSFS control issue that makes it difficult to put the props into feather using Bravo throttle quadrant? I can get it back almost to feather but I have to use my mouse to completely put the prop lever into feather..
You need a third party program to do it, the MSFS feathering controls have never worked on anything ever for me.
If you don't already have something like SPAD or FSUIPC, I think Mobiflight will do the job, and it's free.
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I use SPAD.neXt with the Bravo throttle, and I use MSFS 2020 and 2024 controls for the propeller axis, and the following commands for the "reverse" detent (button) for the Bravo, for feathering:
Button pushed:
10 of the following pairs:
Send PROP_PITCH1_DECR-Event (or PROP_PITCH2_DECR-Event for Prop 2)
Delay execution for 100 msButton released:
Send PROP_PITCH1_HI-EventI find this to work in both 2020 and 2024.
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I've been able to implement feathering all within MSFS2024 with the bravo throttle:
Propeller 1 axis - Joystick RAXIS Z - set inverted
Propeller 1 Pitch Hi - Joystick button 26 - set control on release
Propeller 2 axis - Joystick RAXIS Y - set inverted
Propeller 2 Pitch Hi - Joystick button 27 - set control on release
Toggle Feather Switch 1 - Joystick button 26
Toggle Feather Switch 2 - Joystick button 27 -
I've been able to implement feathering all within MSFS2024 with the bravo throttle:
Propeller 1 axis - Joystick RAXIS Z - set inverted
Propeller 1 Pitch Hi - Joystick button 26 - set control on release
Propeller 2 axis - Joystick RAXIS Y - set inverted
Propeller 2 Pitch Hi - Joystick button 27 - set control on release
Toggle Feather Switch 1 - Joystick button 26
Toggle Feather Switch 2 - Joystick button 27@MiRexer said in Propeller feathering in flight:
I've been able to implement feathering all within MSFS2024 with the bravo throttle:
Propeller 1 axis - Joystick RAXIS Z - set inverted
Propeller 1 Pitch Hi - Joystick button 26 - set control on release
Propeller 2 axis - Joystick RAXIS Y - set inverted
Propeller 2 Pitch Hi - Joystick button 27 - set control on release
Toggle Feather Switch 1 - Joystick button 26
Toggle Feather Switch 2 - Joystick button 27Thanks for the info!
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I've been able to implement feathering all within MSFS2024 with the bravo throttle:
Propeller 1 axis - Joystick RAXIS Z - set inverted
Propeller 1 Pitch Hi - Joystick button 26 - set control on release
Propeller 2 axis - Joystick RAXIS Y - set inverted
Propeller 2 Pitch Hi - Joystick button 27 - set control on release
Toggle Feather Switch 1 - Joystick button 26
Toggle Feather Switch 2 - Joystick button 27@MiRexer
I’ve tried exactly that with no success, when I bring the propeller below the detent, it doesn’t go in feathered mode in the sim (lever doesn’t move to feather). It works for you? Any other option checked or unchecked that you are not mentioning the message?Thanks a lot!
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Are you quick with feathering it? When I was first trying I was taking my time and I couldn't get it into feather.
From the manual:
"The propeller blade angle of a constant speed propeller is controlled via high pressure oil
admitted to a cylinder in the propeller hub, metered by a governor. In a multi-engine aircraft, the
absence of oil pressure will reduce the propeller blade pitch to the feathered position, but only
when the oil pressure is reduced quickly; otherwise, counter-weighted feather locking pins will
prevent the blades from feathering during a normal shutdown, or often an intentional shutdown
in flight. For this reason, the propeller levers must be placed in the feather detent quickly during
engine shutdown (while there is still oil in the propeller hub) to overcome the feather locking pins
and feather the propeller. " -
Are you quick with feathering it? When I was first trying I was taking my time and I couldn't get it into feather.
From the manual:
"The propeller blade angle of a constant speed propeller is controlled via high pressure oil
admitted to a cylinder in the propeller hub, metered by a governor. In a multi-engine aircraft, the
absence of oil pressure will reduce the propeller blade pitch to the feathered position, but only
when the oil pressure is reduced quickly; otherwise, counter-weighted feather locking pins will
prevent the blades from feathering during a normal shutdown, or often an intentional shutdown
in flight. For this reason, the propeller levers must be placed in the feather detent quickly during
engine shutdown (while there is still oil in the propeller hub) to overcome the feather locking pins
and feather the propeller. "@MiRexer Well in fact I was trying on the ground, just checking if the blue propeller lever would visibly move to the feather range (which it didn't). You mean that your keybind does engage feathering in flight without moving the lever? Well I guess that's useful, but I was hoping to also use that on planes where the startup sequence calls for feather position for the propellers...
