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Author Topic: Original Il-2 1946 Airspeed Paper  (Read 516 times)

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proweather

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Original Il-2 1946 Airspeed Paper
« on: January 21, 2019, 12:33:19 AM »

I just watched the tutorials for the bombsights in Il-2, and they all say that in order to use the sights properly, one must have a piece of paper that comes with Pacific Fighters. It converts indicated airspeed from the game into actual airspeed, so that bombsights can be used properly. But this did not come with my copy of 1946. Does anyone else have it? If so, could you upload a picture of it please? Thanks in advance!
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greybeard

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Re: Original Il-2 1946 Airspeed Paper
« Reply #1 on: January 21, 2019, 01:23:20 AM »

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proweather

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Re: Original Il-2 1946 Airspeed Paper
« Reply #2 on: January 21, 2019, 11:24:23 AM »

Thank you grey!
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proweather

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Re: Original Il-2 1946 Airspeed Paper
« Reply #3 on: January 21, 2019, 11:26:04 AM »

I'm afraid I don't know to read this. Could someone help me out?
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SAS~vampire_pilot

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Re: Original Il-2 1946 Airspeed Paper
« Reply #4 on: January 21, 2019, 11:34:31 AM »

you know what IAS and TAS is?  IAS does not have air pressure compensation and develops an error the higher you get.

You only get IAS from the instruments but need TAS for bomb calculations. Top line is IAS, columns down is TAS at given altitude.
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Flying H

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Re: Original Il-2 1946 Airspeed Paper
« Reply #5 on: January 21, 2019, 01:09:22 PM »

IAS=Indicated Air Speed, TAS= True Air Speed (or speed over the ground)
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proweather

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Re: Original Il-2 1946 Airspeed Paper
« Reply #6 on: January 21, 2019, 01:46:33 PM »

I know what TAS and IAS are, but I'm not sure how to cross the numbers over.
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greybeard

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Re: Original Il-2 1946 Airspeed Paper
« Reply #8 on: January 21, 2019, 04:48:24 PM »

I know what TAS and IAS are, but I'm not sure how to cross the numbers over.

Scroll the altitude row closest to that where your IAS is read until you find the closest value to this latter in the upmost row: the figure in the intersection of mentioned altitude and IAS is the approximate TAS.

E.g.: you read 220 km/h at 4000 m, relevant (approximate) TAS is 285 km/h.
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proweather

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Re: Original Il-2 1946 Airspeed Paper
« Reply #9 on: January 22, 2019, 06:11:26 AM »

Thanks again, greybeard!
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