Question about Yak-1 Series 69 instrument panel.

[Arfsix]

     I am attempting to set up a series of snap views of aircraft panel instruments to utilize VoiceAttack (https://voiceattack.com/) commands to observe operating parameters and limits without having to use joystick buttons or other physical controls.

     As an example, I can make a snap view (IL-2 Sturmovik, Battle of Stalingrad, User Manual, Ver. 1.011, Page 40, 9.0 COCKPIT CAMERA ADJUSTMENT, Creating a snap view:)(https://drive.google.com/file/d/0B0Ks7AXjpmbEZ0dhZnBhR3lvSDQ/view) of the fuel gauge and assign the snap view key mapping to a VoiceAttack command. When I speak the command phrase “View Fuel”, the fuel gauge snap view is displayed allowing me to determine the fuel quantity and the command phrase “Hide Fuel” returns the display to its’ previous view.

 

     While setting the snap views for the Yak-1 Series 69, I found some instruments and red pull handles that I cannot identify. Located on the right side of the panel forward of the Oil Radiator Control Wheel, the No. 1 instrument is also repeated on the left side of the panel.

     Does anyone know what these items are, what they do, and what the labels mean? Any help would be welcomed!  

[Frenchy56]

Something about battery amperage? It probably doesn't really matter for flight.

Edited June 9, 2018 by Frenchy56

[-SF-Disarray]

The label above the left hand #3 reads, "Center reload/recharge not lower than 18 A" There isn't enough context to determine what "18 A" refers to but it may be amps if they are using electronic actuators to charge the guns; the flight/maintenance manual for the plane would have that info but I don't have one or know where to find a copy if a copy indeed still exists. The right hand one reads much the same but not for the center. Both are related to charging, reloading or clearing a jammed in the guns. Logically, then the one on the left is for the cannon and the right for the right hand MG, the one for the left gun is on the other side and has an identical label as the right hand #3. I'm not sure what the #1 or #2 are but they could be related to the electronic systems. 

[unreasonable]

I am pretty sure 2 is an ammeter, the units look right, so 1 is a voltmeter? 

[-SF-Disarray]

Well, amp is a cognate in Russian, I went and verified that, so it would fit for the label, assuming an electronic component is involved with the cocking of the guns. If 1 is a voltmeter could it be a monitor for the alternator or the main battery?

[JtD]

Manometer (1) pressure in backup air reservoir.

Left handle (3) cock cannon.

Right handle (4) cock machine guns.

 

Guns were pneumatically charged, there's another gauge for the normal air system on the left hand side of the cockpit. My guess is that the A in this case stands for atmospheres, and that cannon and machine guns might require different minimum pressures - hence two labels.

 

Voltmeter (2) for radio power circuit.

[Arfsix]

     Thank you everyone for your helpful replies. Might I hopefully suggest and try for consensus with the following?

 

     The red handles #1 are cocking or recharging handles for the machine guns and cannon. They are animated and move when the weapons are recharged.

 

     The #2 gauges are probably manometers showing pressures available for recharging weapons systems. The readings do not move under any circumstance (recharging weapons, engine start, engine off, etc.)

 

     The #3 gauge appears to be a voltmeter (there are no other electrical meters on the panel) but for which system is unknown. It also does not move at any time.

 

     If you disagree, speak up as all replies are welcome!

 

     So long and thanks for all the fish!   ??

[unreasonable]

Works for me: I am not current on electricity.    

 

 

[-SF-Disarray]

You are defiantly correct for #1, the labels warning of the required pressure say as much and the animations confirm the function. I went and checked and found that atmospheres is also a Russian/English cognate so the "18 A" is explained. It follows then that #2 is the pressure read for the reload systems, the location makes sense and if it is a closed pneumatic system it would be possible that the gauge wouldn't move. #3 could be the master electric read, hooked up to the alternator. It reading in the positive would indicate that the battery is charging and as long as the alternator is working as intended it wouldn't need to move. Though it is more likely that such things just aren't modeled in the game.

[-SF-Disarray]

It would be an odd choice if that volt meter was only for the radio. There are other electric systems on the plane, granted not that many, so it would make more sense that it would be for the electric system as a whole.

[Arfsix]

Is there some reason to not believe what JtD posted?

 

17 hours ago, JtD said:

 

Voltmeter (2) for radio power circuit.

 

     It was not a matter of disbelief. I agree the instrument is a voltmeter. I simply do not know which system the meter is measuring. Thank you once again, JtD !

[JtD]

It's what I thought the manual says, looking into it again I find it's not a voltmeter, but a voltamperemeter, i.e. it is giving Watts. The manual says it is only in aircraft with radio installation, so I assumed it was for the radio circuit, but this is not necessarily so. If it was limited to the radio system, it could be useful in determining if you're transmitting, or how strongly, or if the system is dead.

 

(My Russian sucks so no guarantees.)

[DD_Perfesser]

I had never heard of a voltamperemeter so I did a search. All i could find were  digital displays with 2 readouts. One volts the other amps.

This thing looks like a regular old ammeter with a negative and positive reading. 30 amps charge is what you might expect at times but not continuously.

[-SF-Disarray]

If you can post a picture of the manual page I might be able to translate it. My Russian is good but my 'airplaneese' isn't up to snuff. With enough context, though, I can muddle through.

[unreasonable]

So having been positive about (2) being an ammeter, I find that I should not have been so negative after being corrected by JtD's battery of information.  In future I will try to stay more grounded.   

[RedKestrel]

This conversation has been unexpectedly elecrifying. Some shocking revelations here.

 

[Brano]

IIRC JtD is using this technical description:

Cамолет як-1 техническое описание книга 2, ВОЕНИЗДАТ, MOCKBA 1942

issued/approved by brig.engineer Volkov and battalion commisar Andreev ,April 1942

It should be for Yaks till series 60. Unfortunately I have no detailed manual for series 60 upwards. Probably the instrument is combined volt and ampermeter...there is a small button below scale,maybe to switch between A and V. As battery is type 12-A-5, it has 24V and maximum permissible discharge current power of 30A. Normal discharge current is 15A

What is interesting:

Yak-1 s.69 battery is either discharging at max all the time or has 30V ?

Yak-1 s.127 shows 24 on scale,so this one fits to 24V battery voltage ?

Yak-7 seems to have no such gauge

 

What is even more interesting,is comparison of system air pressure through yak models in game

Yak-1 s.69 seems to have nonfuctional gauges for system pressure and emergency pressure tank. All the time at 80atm ?

Yak-1 s.127 looks better, but still got some issues with air pressure, as system pressure is 40atm and so is the emergency pressure tank

Yak-7 is a textbook example...as it should be = system pressure of 50atm and emergency tank with 32atm. Congrats to devs ?

[unreasonable]

10 hours ago, RedKestrel said:

This conversation has been unexpectedly elecrifying. Some shocking revelations here.

 

 

One could go on alternating these direct posts, but I am too wired up to generate anything useful or transform my thoughts:  no longer a dynamo, I have become static.

 

But as I said earlier, electricity is not my field.

 

(Sorry Arfsix   hope you do not mind us youngsters being silly!)    

[-TBC-AeroAce]

On 6/11/2018 at 8:51 PM, RedKestrel said:

This conversation has been unexpectedly elecrifying. Some shocking revelations here.

 

 

Lol there will be people that get charged up about this post because they won't  make the connection in their head circuit. 

Edited June 13, 2018 by AeroAce

[DD_Perfesser]

Assuming its an ammeter its reading 30 amps charging. You would get this for a bit if the battery was low on charge but it should go down to just a few amps shortly.

Any negative value and you're draining the battery.

30 continuous would probably boil the battery dry.

[Brano]

Generator ГС-10-350 had  current power of 12.7A max. So having 30A as charging current seems not feasible to me.

discharge current powers for 12-A-5 battery:

maximum 30A

starting 15A

running 0.5A

Charging current:

first charging 1A

repeated charging 0.3-0.6A (which is OK value fo 5Ah capacity battery)

[JtD]

It is voltampere, aka. Watt. At least that's what the name of the instrument says.

 

https://en.wikipedia.org/wiki/Volt-ampere

[DD_Perfesser]

Ill give you that but it makes no sense.  All the specs are in amps and the gauge reads in watts?  And a pegged reading like that usually means something bad is about to happen.

Besides, 30 watts is nothing. Bike powered generator stuff.

Its just a static anyway. Realistically it should read just above zero.

Edited June 13, 2018 by DD_Perfesser

[JtD]

Well, radios don't need more, if that indeed was the radio. However, below a plan from the Yak-9 manual, which appears to have the same gauge in a different spot. In the Yak-9, it's clearly measuring current going in and out of the accumulator.

Edited June 13, 2018 by JtD

[Brano]

If it is in Watts, it is not much ( 30 max on scale) to run all electric appliances. For example just radio РСИ-4 needed 80W for receiving and 210W for transmitting. IMO in Yak we have a simplified version of real voltampermeter that reads only A. Check as example I-16 or MiG-3. They have proper voltampermeter. You can see 2 scales. Lower one is for A, upper one for V. To read V, you need to press that little button below with inscription "Vнажать" (нажать=press). Pushing of that button is not simulated in game. Simmilar button is on Yak gauge,but has no inscription and looks like permanently pushed.

V is always positive = from 0 to 30. Scale for A goes to negative = it can be observed when you start the engine, there is temporary drop into minus (discharging current) untill engine starts and generator ГС-10-350 takes over. As shown on picture JtD posted from Yak-9 electrical scheme.

[-SF-Disarray]

For what it is worth, the only units mentioned in that schematic appear to be amps. All of the fuses mention the amperage they are rated for and the highest number in this portion that we can see is 30 amps. My understanding of electronics schematics is rudimentary at best, though, so I might be missing something.