Water Injection

[Firebugs]

Forgive me if I'm missing something obvious but I've bound the water injection buttons and have not been able to see any engine performance changes whatsoever when I press them.

[Gunfreak]

Same here. I don't know if there is a special button to break the wire to go into max power. There's very little auditory cues in the aircraft.

[suckafish]

You have to mouse over the rpm handle and using the mouse slightly raise it and then pull it down hard. It will then up your rpm to 3,000 + . Doing this I have gotten it to go about 3,600 rpm. Once you have done this you can use the throttle to modulate your rpm. It is weird and unwieldy but it works. I am not sure if this is a bug or what - but it needs fixed ASAP. I also cannot get the aiming light switch and rehostat to bind to my hotas and there is no option for charging the guns.

[Firebugs]

1 hour ago, suckafish said:

You have to mouse over the rpm handle and using the mouse slightly raise it and then pull it down hard. It will then up your rpm to 3,000 + . Doing this I have gotten it to go about 3,600 rpm. Once you have done this you can use the throttle to modulate your rpm. It is weird and unwieldy but it works. I am not sure if this is a bug or what - but it needs fixed ASAP. I also cannot get the aiming light switch and rehostat to bind to my hotas and there is no option for charging the guns.

 

I think that is a bug, and a separate issue.  Water injection should not permanently modify engine RPM, it should boost the manifold pressure only, the same as it does in the P47.

 

Edit to add:  At sea level I can get 295-300kts, which is (from what I've read) correct for full mil power.  At 20,000ft at full mil I get 234kts IAS, which translates to 400mph TAS, which is (I believe correct).  To get that extra bit to bring it up to 425mph TAS at 20,000 I believe I need water injection and I don't believe it's engaging in DCS at the moment. 

Edited June 24 by Firebugs

[MIDWAY]

51 minutes ago, suckafish said:

You have to mouse over the rpm handle and using the mouse slightly raise it and then pull it down hard. It will then up your rpm to 3,000 + . Doing this I have gotten it to go about 3,600 rpm. Once you have done this you can use the throttle to modulate your rpm. It is weird and unwieldy but it works. I am not sure if this is a bug or what - but it needs fixed ASAP. I also cannot get the aiming light switch and rehostat to bind to my hotas and there is no option for charging the guns.

Definitely something wrong with that trick.  I got it to 155% rpm and 121 Manifold. A nice 354kts for about 1 min before it kills the engine.    Thats fast!

 

 

[Saxman]

Water injection definitely doesn't seem to be modeled right. It shouldn't even be a separate mapping; the injection was automatic when the throttle was pushed to full.

[lawndartleo]

So is WEP the range past the detent?

I set my throttle detent to match the one in game and as soon as I push past it the lever shifts ever so slightly right and all the way forward… at least what looks all the way forward  the controls position tool (shift enter or whatever it is) says full forward on that axis. I see none of the performance people report. 
 

something in janky and I don’t know what it is so that I can figure out how to work with it. 

[stelr]

My squadmates and I see the exact same.  In level flight, at 2700 RPM (max), when I push the throttle past the wire gate (detent), the animation is correct but there is no change to manifold pressure at all.  I see others posting that they get an additional 10 kts doing this, but not so for anyone I have talked to or flown with.

Am I missing something, or doing something wrong?

And to clarify, this in no way refers to the bug in the RPM lever that can provide ~3200 RPM by using the mouse to push the lever down further.  That is a separate issue.

it just seems, in my experience, that water injection/WEP is not yet implemented.

Edited July 3 by stelr

[GTFreeFlyer]

Were you leaning the mixture or running full rich?  Here's an excerpt from Wikipedia...

"In a reciprocating engine, the use of water injection, also called anti-detonation injection or ADI, is used to prevent engine knocking also known as "detonation".^[3] Commonly found on large radial engines with pressure carburetors, it is a mixture of water and alcohol injected into the carburetor at high power settings. When using a rich mixture, the engine runs cooler, but cannot reach maximum power, and a leaner mixture means detonation is likely. With the use of ADI, the injected water and alcohol (which is mixed with the water to prevent it from becoming ice) absorbs the excess heat to prevent detonation while still allowing for a leaner and more powerful mixture.^[3] Notable engine with water fuel injection: BMW 801, Daimler-Benz DB 605, Junkers Jumo 213, Pratt & Whitney Double Wasp. " 

[MIDWAY]

You can push it past the detent and see the mp increase... but you also have to map the water inject button and hit it for some actuall effect.   

...

 

Which is not much more than a few knots level speed.   

 

You know you're doing it right if the water inject warning light comes on eventually. 

[Saxman]

6 hours ago, MIDWAY said:

You can push it past the detent and see the mp increase... but you also have to map the water inject button and hit it for some actuall effect.   

...

 

Which is not much more than a few knots level speed.   

 

You know you're doing it right if the water inject warning light comes on eventually. 

It should definitely be more than just a few knots. The F4U-1A gained about 20mph at critical altitude, with similar improvements throughout its altitude range, once water injection was added.

And it shouldn't be a separate keymap, either.

I wonder if it's time to break out my CH utility and program a detent into my quadrant...