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Author Topic:   Latest on engine advanced engine DM work
Nat
Pilot
posted 12-21- 10:56 PM     Click Here to See the Profile for Nat   Click Here to Email Nat     Edit/Delete Message   Reply w/Quote
Latest IL2 engine DM now has:

5 blocks of 2 cylinders (10 cylinder engine), each block has it's own damagble oil and water system, damage to a blocks oil or water supply can cause power loss from those cylinders and will cause them to "expire" after a time so that you lose all power from those cylinders. Each block of cylinders has it's own damage system so that they can be destroyed but the "whole" engine remains active, but all power can be lost by damage to the oil sump or radiator itself

Where this DM will really come into it's own will be with those big aircooled Radials, where you can now damage the cylinders seperately from the main engine and loose power through them without having to kill the engine, also.

Some added bonuses are that the way SDOE works, you now really get the sound of a big engine from this engine model, and also you'll hear blocks of cylinders start to misfire as they get damaged like you would for the normal engines in SDOE, the IL2 engine sounds awsome now!

Advanced DM? hell I'll model the whole damn engine at this rate.. LOL

~Nat~

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7./JG3 "Naturlich"


"SDOE... What and where would you like to fly today?"
http://members.nbci.com/naturlich/index.htm </B>

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wakeup tailgunner
Pilot
posted 12-22- 04:44 AM     Click Here to See the Profile for wakeup tailgunner   Click Here to Email wakeup tailgunner     Edit/Delete Message   Reply w/Quote
Hey Nat....what if you modelled a set of con-rods for each cylinder, with a looping translate DOF.....

hahahahahahahahahahaha

the strain is getting to me....what...you have already...

Big radial engines....can't think of any planes that use those...hmmmm nine little invisible boxes per engine...

Did you have multiple small 'engines' powering one prop to produce the total power? If so, I wonder if 36 of these will cause fr drop.

I suppose the kill function from the DM can be told to target all cylinders, and if each cylinder has a small hit-box.....

I already have a visible physical model, which I could cut up quite easily....

I'd love to see the details of this! Any chance of a sneal peak?

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Nat
Pilot
posted 12-22- 07:23 AM     Click Here to See the Profile for Nat   Click Here to Email Nat     Edit/Delete Message   Reply w/Quote
sure I'll send it over TG, the code is in the midst of being sorted out, but I think it's right now, needs the smoke trails redoing again now though.. lol

What I have basically is 5 engines, 4 engines 1-4 are children of "engine" (I'll explain why as I go on) engine 1-4 have oil and water systems, "engine" has the radiator and oilsump, the water and oil system of the other engines take damage which is passed up through the damagechain to it's corresponding engine, and in that engine, instead of having pistons caling functions to control the changes in max HP the engine has this code itself in the onDmg properties, the engine is made to protrude in my case through the top of the fuse in the nose so that it can take direct damage aswell, inthis way the damage will affect the maxHP either by direct hits to the engine, or via damage chain from oil and/or water, also I can affect the fuel consuption this way aswell for a specfic engine as it gets damaged. The total HP of the engine is broken down and divided equaly between the 5 engines, as is the SFC. What this all means effectivly is that I have built a cylinder based engine by putting 5 engines together and using them as blocks of 2 cylinders each. The reason I have made 4 of them children of the first is to allow for oilsump or radiator damage to kill every cylinder, by killing ther main engine, all attached engines die with it. (there is a better way of doing this, but not on the IL2, it depends on how your engines are listed in the tree, if they aren't in a group like mine I know a better way)

I dunno, this might sound complicated, but it's not really, if you look at the engine DM from the last IL2 you'll guess how I've done it.. 5 engines running 1 prop giving you your usual maxHP, destroying 1 of the engines effectivly means you lose the power output of 2 cylinders.

anyhow, I'll send you the SM file over now for you to take a look at, I'm thinking that aircraft like the Jug where the radial is visible from the front could have a similar setup as this, making a radial version wouldn't be a problem.. and the PBY is gonna love having real engines aswell! Hell it'll need them cause they just sit there begging to be shot up, this'll help keep the engines going cause alot of the cylinders will be hard to hit, so hopefully you'll only lose maybe 2 cylinders per engine, losing power but not having to lose the complete engine will be a big bonus in the game I think

Nextstep is to make a model of the engine and hide it below the engine covers so they can get blown of to show it, but thats after I've finished chopping up the wings and rebuilding them.. lol So much work I'm making for myself, hell I haven't even got the pit done yet!

Well... hhmmm... yet another long post.. damn gotta stop that, most people wont even read it all.. LOL

Check your mail TG, it'll be in there for you (home)

~Nat~

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7./JG3 "Naturlich"


"SDOE... What and where would you like to fly today?"
http://members.nbci.com/naturlich/index.htm </B>

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Snickers
Pilot
posted 12-22- 10:35 AM     Click Here to See the Profile for Snickers   Click Here to Email Snickers     Edit/Delete Message   Reply w/Quote
wt - Actually if Nat is doing what I think he is that would be 14 little boxes per engine... maybe perhaps 2 rows of 7.....

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Snickers
=FC=

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Raider
Pilot
posted 12-22- 11:35 AM     Click Here to See the Profile for Raider   Click Here to Email Raider     Edit/Delete Message   Reply w/Quote
Nat, this sounds great, I thought you have been a little quite lately, now I see what you have been up to.

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wakeup tailgunner
Pilot
posted 12-22- 03:16 PM     Click Here to See the Profile for wakeup tailgunner   Click Here to Email wakeup tailgunner     Edit/Delete Message   Reply w/Quote
Snickers, we'll need the 14 for the PBY...

B17's ran single row 9 cylinder radials.

Thats only nine per engine...36 per plane....

only need 28 for the Cat..

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Nat
Pilot
posted 12-22- 04:58 PM     Click Here to See the Profile for Nat   Click Here to Email Nat     Edit/Delete Message   Reply w/Quote
the "parts" count for the IL2 is like this:

10 Cylinder engine made up thus:

5 engines designed to work as a single engine i.e. 5 sets of 2 cylinders (5 parts)

engines 1-4 have oil and water (8 parts)

parent engine has radiator and oilsump (2 parts)
engine total parts is 15 for a 10 cylinder engine. You could ofcourse use more models and make the full 10 cylinders, or even use less, maybe only 3 cyliners, since you're just dividing up the total HP and SFC it doesn't really matter if you have an odd number of cylinders. If it helps to work out ho maney parts total you'll have, using my model you're looking at 1 of the engines being made up of 3 parts, at 14 cylinder engine would be made up of 21 parts, but this is easily adjustable, using the same oil and water supply for 2 engines instead of 1 would decrease the number of parts used.

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wakeup tailgunner
Pilot
posted 12-23- 10:23 AM     Click Here to See the Profile for wakeup tailgunner   Click Here to Email wakeup tailgunner     Edit/Delete Message   Reply w/Quote
For each B17 motor, I now have 1 oil tank, 1 oil cooler, and a possible 9 cylinders. There would also be a central 'crank-case' which the cylinders would be child objects of. Any 'fires' would operate on this only, with fire-extinguisher system on it. This gives me: 12 objects per motor, or 48 for the plane.

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Nat
Pilot
posted 12-23- 03:53 PM     Click Here to See the Profile for Nat   Click Here to Email Nat     Edit/Delete Message   Reply w/Quote
LOL, I guess this is where we find out what impact code has on FR.. it sounds like it comming along great though! Lets just hope we can get away without major FR hits cause thats gonna be so damn cool.. just way till you hear the engines hum when they are built that way, then it'll really sound like a bomber, believe me

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