[BUG] P-51D Prop Does Not Feather When The Engine Stops.

[Bowie]

When the music stops - the P-51D Prop Does Not Automatically Feather.

 

 

Should it?

 

 

Or was that just for multi-engine.

 

 

 

Thanks.

 

 

 

 

Bowie

Edited June 14, 2020 by Bowie

[Art-J]

Neither Hamilton Standard nor Aeroproducts props used on Mustangs could feather. I don't think any single engine warbird had such a prop, as there was no point in having it on a single.

 

Besides, in ordinary Hamilton Standard prop, when oil pressure goes null, the prop goes full fine, not full coarse anyway (that applies to feather'able models as well).

[JupiterJoe]

Just been playing Blue Nosed Bastards of Bodney Campaign.   My wingman had a completely feathered prop when he was doing a crash-landing after receiving damage during a dogfight.  I wish I'd taken a screenshot.  Is this a bug?

Also, the A-8 I was firing at took several hits (at close range) before registering damage in that little textbox in the lower right.

[Frederf]

Single engine propellers fail flat. Multi engine propellers fail feathered. (in general) 

[JupiterJoe]

Would you please elaborate?

[ddc196]

 

[grafspee]

P-51 prop does not have feathering feature at all. 

[ddc196]

"The P-51D propeller is a Hamilton Standard four-blade, hydraulic, constant-speed propeller with a diameter of 11 ft, 2 in and a blade pitch range of 42°, set at 23° at low pitch and 65° at high pitch. The propeller RPM is controlled by the Propeller Control lever on the throttle quadrant in the cockpit. The propeller governor automatically controls propeller pitch to maintain a constant speed between 1800 and 3000 RPM, depending on the Propeller Control setting. The propeller cannot be feathered."

That's from the manual.

Edited April 17, 2022 by ddc196

[JupiterJoe]

That's what I thought and yet I saw an AI's Mustang with a completely feathered prop (blades perpendicular to the airflow), when it was attempting to crash-land after severe damage sustained in a dogfight over Normandy.  I curse myself for not taking a screenshot.

Edited April 18, 2022 by JupiterJoe

[grafspee]

50 minutes ago, JupiterJoe said:

That's what I thought and yet I saw an AI's Mustang with a completely feathered prop (blades perpendicular to the airflow), when it was attempting to crash-land after severe damage sustained in a dogfight over Normandy.  I curse myself for not taking a screenshot.

 

You can see other player's P-51 with revers thrust blade position so prop would push plane back, this is just error, same thing when you see plane model in mission editor blades are set for 0 pitch they look weird.

Things apply properly only if you look at your plane client's plane, others or AI is just random stuff.

I many times raised that issue on forum but with no respons or even comment, just plain silence.

Edited April 18, 2022 by grafspee

[razo+r]

AI can do things that a player cannot do, so don't take them as a benchmark.

For example, they can also drop flares even if the aircraft is not equipped with them (Viggen).

They can fly level flight with 2-3 engines missing (IL-78).

They can also sometimes fly in reverse.

etc.

[Art-J]

@JupiterJoe - Well, if it happens, then technically it is a bug and there's nothing wrong about reporting it, although as mentioned by others, similar (and worse) AI aircraft shenanigans are on the rock bottom of fixing priority list in DCS, so one just has to live with it.

[Ala13_ManOWar]

IA isn't rock bottom of fixing priorities for ED, they are just working a whole new IA (already released some WWII related things) and it would make no sense working twice in the same. I'd rather prefer the whole new IA as soon as possible rather than punctual minor "fixes" to a really unimportant question like what IA does with feathering props, to be honest .

[Callsign112]

2 hours ago, Ala13_ManOWar said:

IA isn't rock bottom of fixing priorities for ED, they are just working a whole new IA (already released some WWII related things) and it would make no sense working twice in the same. I'd rather prefer the whole new IA as soon as possible rather than punctual minor "fixes" to a really unimportant question like what IA does with feathering props, to be honest .

+1. I think most here want the same thing, its just some are able to deal with the waiting better than others.

[NineLine]

Is this only in the P-51, you are seeing the AI "feather" the prop?

[NineLine]

Are you guys sure its not just the AI pulling back on the pitch/RPM when the engine starts to die, I can get the same thing if I trigger a failure and pull back before the engine jams. Or am I misunderstanding the issue?

null

[grafspee]

First thing, P-51's prop does not feather when engine is shut off, it is not turbo prop, it is just old piston engine with hydromatic constant speed prop, and this prop will go to fine pitch if rpm are below governor rpm range and when you shut engine off it will go below minimum governor rpm and pitch will go to full fine no matter what.

This was combat plane, constant speed unit was designed to go full fine pitch when got combat damage so plane could be flown as fixed pitch prop, when your engine died you were toasted anyway.

Another thing feathering prop is important in 2 or more engines planes, in single engine not so much, if you loose engine you are done anyway.

[NineLine]

I never said it was automatic, but you get the same effect as the AI if you pull back on the throttle and pitch are you saying this is incorrect? Maybe I am missing what you are saying.

 

[grafspee]

@NineLine I think OP was asking why prop does not feather when engine is shut down on the ground, just like it happens in turbo props planes. Even in twin engine Mosquito prop does not feather when engines are shut down. 

Edited August 23, 2022 by grafspee

[NineLine]

1 hour ago, grafspee said:

@NineLine I think OP was asking why prop does not feather when engine is shut down on the ground, just like it happens in turbo props planes. Even in twin engine Mosquito prop does not feather when engines are shut down. 

 

Yeah I had moved on from the OP as I thought he was fairly well answered, I am interested in the claims that the AI are feathering, but I dont think that is the case, sorry we crossed wires there