Author Topic: Feature Request please HT - engine management  (Read 2892 times)

Offline Tilt

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Feature Request please HT - engine management
« Reply #75 on: February 16, 2004, 06:02:48 PM »
Quote
Originally posted by Batz


I do think that re-doing the throttle to max 110% and placing stuff like mw50, adi, c3 on the "WEP" button would be an improvement.


I would agree with this but find in pyro's excellent posts some evidence that it may not be a solution alone for all AC.

Actually on VVS ac (barring the yak9U) it was not the throttle but the rpm control that would have the 110% setting. By increasing rpm to its WEP setting the boost was enhanced to give a higher manifold pressure.

Looking at VVS ac there was no "wire". Pilots were taught a crude form of constant engine management which meant they were always concerned with engine temperature,rpm and manifold pressure. Adjusting (in the main) rpm and throttle to set boost whilst playing with two sets of engine air flow controls and mixture settings.

I fully agree with all above that the two latter are not required here.......they have no real consequence other than extra work.

The new rpm/throttle > range model does have a consequence (range/endurance modification) and I for one welcome it greatly.

Hence breaking the wire may be the same as pressing a button but only for those ac that had such wires.

Back to (rpm generated) WEP. In fact still using the button to generate the extra rpm denies the consequence (or assures it depending upon view point) it locks the ac into WEP mode until the WEP  button is unlatched. Reducing rpm does not disengage WEP it cannot be reduced until WEP is unlatched.(or the throttle setting changed)

( I have now assumed this is not a bug)

So why keep the WEP button for rpm generated WEP?

Well the great majority of players do not have extra wheels on their sticks...........they fly MS PP's and rely upon the +/_ keys for rpm which would be fumbled over mid combat. We can see that getting rid of the button may penalise the enjoyment of such players.

Its a tight call.........having practiced with the +/- I tend to think it very doable, but I can well understand HTC deciding that removing a function that players are used to would be a backward step

However for those of us that have the rotaries I would ask that rpm have a 110% range and that using it would induce rpm generated WEP reducing rpm will kill WEP just as reducing throttle does now. Ie WEP becomes a true function of manifold pressure.

The button could then be retained as "auto WEP" much as we  have many other automated functions. For those AC where the WEP is an additive it would still be used anyway. Further the additive would even be added when throttle and rpm were reduced and only switched off when unlatched.

If some AC used 110% throttle then this should be available similarly.

Basically thottles and rpm would then both have a 0 to 110% band and the FM would make the extra 10% available when it suited the  engine model HTC wished to use.

On a Yak9U neither of the two extra 10% bands would be effective. They would be dead zones.

On an La7 the throttle 10% would be redundant but the 10%rpm band  (in fact only 4% of it) would be used to induce and reduce WEP.

If P51's and Spits actually increased throttle to gain WEP then this 10% would be used.

When the WEP button is used the two settings must be at at least 100% and will then seem to jump according to the AC model concerned. Any adjustment of those settings will cause the WEP to dissapear, unless it is to actually increase rpm or throttle into the WEP zone, and unless we are modelling an additive which will just give additional power to what ever setting is in residence.

This will give fidelity of control.
This will not (IMO) reduce play options. (to those dependant on the button)
This will allow a pilot with additive injection to use it for range and not just power.


The next debate is how to limit WEP.

Well it would work as now off the engine temperature. There is no limit to WEP other than the time it takes the engine to cycle above and below its highest permitable running setting and the resultant periods where WEP cannot(should not) be engaged.

For additive it is also limited due to a fixed quantity available.......it can be timed.........although would it really be used at the same rate when other settings have been reduced to give a lower manifiold pressure?

Should a damage/penalty model be added?

It seems that a penalty can be added without incurring "end of ride damage". From a thread elsewhere we see that  WEP  could generate a sort of thermal inertia which effects the cooling period of the engine.

The idea is that when WEP is disengaged  the temperature continues to rise for a period prior to starting to cool. Further the amount of subsequent rise is a function of the temperature at which WEP was disengaged.

eg if the temp red line was at 220F. WEP is not available over 240F

Switching WEP off at 220F may incurr no subsequent thermal inertia and the engine would start to cool to a nominal 180F.

Switching WEP off at 230F may incurr a period where the engine continues to heat up to 235F where after it cools.

Switching WEP off at 240F may incurr a period where the engine continues to heat up to 250 where after it continues to cool.

A pilot using WEP re lentlessly would (eventually) suffer a period where the engine heated and cooled thru 20 degrees (+10 > -10)then after a few seconds of WEP have the same wait again.

A pilot using WEP sparingly and maintaining a lower engine temperature would have more access to WEP.

To this we could go further and add the modeling of differing temperature rise rates and cooling rates under differing conditions as keawessa suggested above.

Would such a penalty system /heating and cooling model actually add to the game? I am not sure........... most folk would not even understand the subtlty of the system IMO.
« Last Edit: February 16, 2004, 06:12:28 PM by Tilt »
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Offline Pyro

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Feature Request please HT - engine management
« Reply #76 on: February 18, 2004, 09:50:28 AM »
Good points, there is a limit to how much we can use the fuel multiplier due to the fact that you can't scale altitude.  Mainly, I think it get can get us better differentiation between something like long range fighters and point defense fighters.  

And even though my arguments may make it seem otherwise, I'm really not dead set against using stuff like engine temp as a gameplay mechanism and do agree that it can feel more immersive if done decently.  But I also have seen it in a form that I think decidedly takes away from gameplay by being way too restrictive by requiring you to fly your engine more than your plane.  I mainly take issue with arguing it as a point of realism.

Offline zanshin

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Feature Request please HT - engine management
« Reply #77 on: February 18, 2004, 12:51:34 PM »
Quote
Originally posted by NHawk
Please don't use "Sim" and "Game" in the same sentence. They are two entirely different things.

A game needs little to no real skill or knowledge to play.

-------------------------------------------------------------------------

Chess, poker, backgammon?  We "gamers" love people who reckon games have no skill element!

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Offline F4UDOA

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Feature Request please HT - engine management
« Reply #78 on: February 18, 2004, 08:18:57 PM »
Quote
In the real world, a pilot entering combat may be worried about whether he has enough gas. In the sim world, the pilot may be worried about whether he has too much gas. It's pretty backwards, fuel should play a bigger role.


Exactly!!

Especialy in the simm world there are no points for dieing with a full tank.

Offline Swoop

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Feature Request please HT - engine management
« Reply #79 on: February 18, 2004, 08:39:22 PM »
Pyro,

Engine temp as a gameplay item:


Handled very well in European Air War from some years ago......



At full power (WEP) engine temp would rise to a point at which the sound wav being played would change, the pistons would start to ring and you'd get engine knock.  A minute or so of this and the engine would start to lose power (the actual engineering term is: Power fade due to overheat) and then the wav would change again, the engine would start to tick as the pistons rings melt.  Another 20 seconds of this and the engine would blow....and seize.

Any time before the detonation, reducing throttle would stop the process. Running then at mil power (90% EAW cos they didn't model WEP) wouldn't cool the engine much, running at lower power would cool it faster.


Result is, pilots don't fly around on full power all the time since they want their engine to be as cool as possible before entering combat.

« Last Edit: February 20, 2004, 04:25:59 PM by Swoop »

Offline Octavius

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Feature Request please HT - engine management
« Reply #80 on: February 18, 2004, 09:24:05 PM »
I second that motion, Swoop.
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Offline Tilt

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Feature Request please HT - engine management
« Reply #81 on: February 19, 2004, 03:32:51 AM »
I think that a "fall back position" could be to remove the "latch" placed upon RPM by WEP implementation.

ie to engage (non additive) WEP on an AC both Throttle and RPM should be at 100%. Reducing any of these would disengage WEP.

For additives WEP could be available at any setting via a throttle input multiplier (like raising octane).
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Offline save

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Feature Request please HT - engine management
« Reply #82 on: February 23, 2004, 09:03:19 AM »
Hi Pyro !

It might be an good idea to include the possibility to open / close the radiator, as it change the way you fight  and close counterparts like spit1/109e can get an edge with smart usage of it ,like it did in real life.

Im not for  too much engine management , but this simple mechanism
keeps you aware of your engine temp, and with added fuel awareness it has it's place in this sim/game imho.

My ammo last for 6 Lancasters, or one Yak3.
"And the Yak 3 ,aka the "flying Yamato"..."
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Offline gatt

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Feature Request please HT - engine management
« Reply #83 on: February 25, 2004, 05:30:57 AM »
Good post Pyro :aok

However, I'd like to see the WEP differentiated: a/c with real WEP, like USAF fighters, from those who hadnt, like the C.205 and realistic times of use. This could add more realism.
"And one of the finest aircraft I ever flew was the Macchi C.205. Oh, beautiful. And here you had the perfect combination of italian styling and german engineering .... it really was a delight to fly ... and we did tests on it and were most impressed." - Captain Eric Brown