Why do the 109 slats make almost no sound?

[BlackBadger]

For comparison, you can compare the sound they make in the g-6 by flying iron from MSFS, where there's an audible thud everytime, I find it very helpful to hear they came out. It was apparently also the case with pilots who flew these things... Could we hope for a re-consideration of this in the future?

[354thFG_Leifr]

Sound is generally a weaker aspect of BoX, I think.

[354thFG_Drewm3i-VR]

26 minutes ago, BlackBadger said:

For comparison, you can compare the sound they make in the g-6 by flying iron from MSFS, where there's an audible thud everytime, I find it very helpful to hear they came out. It was apparently also the case with pilots who flew these things... Could we hope for a re-consideration of this in the future?

Good suggestion!

[357th_KW]

And maybe make it so we can't hear other aircraft's engines from 500-1000 meters away while they're at it.

[sevenless]

Never sat in a flying WW2 crate myself, but I´d be surprised if the pilot can hear anything at all except the engine noise.

[Mtnbiker1998]

28 minutes ago, sevenless said:

Never sat in a flying WW2 crate myself, but I´d be surprised if the pilot can hear anything at all except the engine noise.

Hear, maybe. *feel*? Now thats a different story entirely. I personally love my jetseat, but I understand that I am a minority of players who have one.

 

Given we sit at desks in office chairs and not in real aircraft, sound is how the game gives information to the player, and at the end of the day, both these things are just vibrations anyway ? No reason this shouldn't be modelled in game

[firdimigdi]

42 minutes ago, sevenless said:

Never sat in a flying WW2 crate myself, but I´d be surprised if the pilot can hear anything at all except the engine noise.

Below is an excerpt from the collection of interview excerpts found here:

http://www.virtualpilots.fi/feature/articles/109myths/

 

When the 109 was flown, advertently or inadvertently, too slow, the slats shot forward out of the wing, sometimes with a loud bang which could be heard above the noise of the engine. Many times the slats coming out frightenened young pilots when they flew the Bf 109 for the first time in combat.

 

Sometimes the slats would suddenly fly out with a bang as if one had been hit, especially when one had throttled back to bank steeply.

 

- Erwin Leykauf, German fighter pilot, 33 victories. Source: Messerschmitt Bf109 ja Saksan Sotatalous by Hannu Valtonen; Hurricane & Messerschmitt, Chaz Bowyer and Armand Van Ishoven.

 

There are more mentions there together with some that seem to hint the transition in behaviour was not a tame experience when they extended abruptly.

[BlackBadger]

 

18 hours ago, sevenless said:

Never sat in a flying WW2 crate myself, but I´d be surprised if the pilot can hear anything at all except the engine noise.

 

As others have posted IRL it would be more of a feeling through the stick and even when deployed you'd feel a "pulling on the stick". The vibration of the initial thud would be felt through the stick too. It is entirely possible that it would be faintly heard too.

 

Though not exactly the same comparison, if you sit on an airliner even next to the engines you can still hear the flaps going down... the mechanism transmits sound through the wing and it carries into the cabin. It's not entirely implausible that a similar effect is at work in a ww2 airplane. 

 

Either way it would be an improvement on what we have which is literally zero feedback deployment and retraction

[[CPT]Crunch]

By the accounts of pilots surprised by their deployment and the slats we have in game that are chronically deployed in turning, even the trim sets them off, it makes one wonder how both can be true, how can a pilot possibly be surprised with our in game version.  Pull stick, deployed, trim and deployed, not much room for surprises there.

[BlackBadger]

yes kinda that's my point. They would definitely surprise a new pilot. Now there seems to be more accounts of this happening during BoB on the Emil. Later slats were slightly reworked either from F or G onwards, can't remember. But with the E, new pilots would be often reluctant to push the machine to the limit because of that. On the other hand, I think it was Galland that said once the slats were out, that's were the real manoeuvring began.

 

Either the only way to tell for us is to look at the wing in the game. Perhpas there's other subtle indicators i missed?

[Holtzauge]

There are so many myths surrounding this. But the thing is that properly maintained slats on the Bf 109 should deploy gradually and NOT come out “with a bang” unless they have not been properly adjusted as in there is a gap which creates a suction force keeping them in longer than they should. Or the slat rails (or linkage on earlier models) are jamming. There is actually a German wartime report on this which notes that this is due to improper maintenance and suggests remedies like tolerances for gaps etc.

 

Properly adjusted and maintained slats on the Bf 109 are purely angle of attack controlled and start coming out automatically and gradually from about Cl=0.8 to become fully deployed at around 1.2. They were designed to do this, and there are even wind tunnel investigations about it confirming the gradual deployment.

 

So if you do not jerk the stick and suddenly go to Cl=1.2, they should deploy gradually just like they do in-game. But sure, if you do a sudden pitch up as in rolling over to do a break turn pulling hard on the stick, then yes, they may come out “with a bang”. But this is then the exception, and not the rule.