[CHECKING] Propeller is unrealistic and bent prop discussion - Page 8 - ED Forums
 


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Old 08-02-2020, 08:53 PM   #71
bkthunder
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Quote:
Originally Posted by Fri13 View Post
And then what for those who can visually confirm the speed alterations etc?
Tell me (and be honest please): are you one of them? Did you fly in a prop-driven aircraft, sitting behind the prop, and did you see it with your own eyes, as you do in DCS?

If yes, you are part of a minority. Do you think a sim meant for the general public should visually represent propellers in a way that is realistic for most people, or for a minority?

Here's a fun fact: they color the tips of the blades so people can see the prop, ergo, unless they did so, the prop would be nearly invisible (as it is).
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Old 08-03-2020, 01:36 AM   #72
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Originally Posted by BIGNEWY View Post
Thanks for the track, and nice bomb drop


It is still possible to fly with a bent prop,

Here are some war time examples, all made it back to the base.

I will try to reproduce missing prop issues

thanks
I wonder how the FM would handle one blade coming off. It should pretty much rip the engine out of its mountings.
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Old 08-03-2020, 10:38 AM   #73
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Originally Posted by BIGNEWY View Post
Propeller improvements are reported, currently in review at the moment



Thank you
Can you confirm prop improvements will be for all aircraft or just the jug???
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Old 08-03-2020, 07:52 PM   #74
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Why has this thread merged with one about the prop when it's bent? Not at all relevant to the propellor visibility issue.
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Old 08-07-2020, 11:52 PM   #75
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Quote:
Originally Posted by Fri13 View Post
You just made a claim that you know what I can see, and what I can't see....
Please provide evidence....

I have provided evidence (Andrews & Purves, 2005;Purves, Paydarfar, & Andrews, 1996;Van Rullen, Reddy, & Koch, 2005;Van Rullen, Zoefel, & Ilhan, 2014) that people can see it as it has been scientifically researched.
Now, please provide evidence that it is impossible by anyone.
Andrews & Purves, 2005: Is behind a paywall

Paydarfar, & Andrews, 1996: "As the frequency of stimulus element presentation continued to increase, these alternations persist until the velocity of the stimulus elements became too great to see them clearly, at which point reversals were no longer evident. Thus, the illusion of reversed rotation in continuous light is first observed at frequencies of 2-3Hz and continues to be elicited at frequencies up to at least 20 Hz."

Van Rullen, Reddy, & Koch, 2005: "We used wheels rotating at a temporal frequency (or spokealternation rate) of 10 and 7.5 Hz"

Van Rullen, Zoefel, & Ilhan, 2014: Conclusion:"... The periodicity of visual perception, in sum, is best described as an ongoing series of attentional cycles at approximately 7–13 Hz."




So if I see this right, it does not reinforce your statement. Let's take the biggest presented range of 2Hz - 20Hz per stimulus element.

Bf109K4 gear-ratio 1:1.685. 3 blades mean 3 stimulus elements per 1 rotation.

-> 2/3Hz - 20/3Hz Range
-> Propeller RPM: 40 - 400
-> Engine RPM: 67,4 - 674

So when the engine is above 674RPM(maybe a few more, but not significantly more RPM), this effect is -according to your sources- not visible anymore: "As the frequency of stimulus element presentation continued to increase, these alternations persist until the velocity of the stimulus elements became too great to see them clearly, at which point reversals were no longer evident"
(I simplified it a bit, as the blade-tips get blurried quicker than the blade-root, but I don't think this changes the whole situation)

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