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Engine damage

I've had pretty good success with CHT (as it appears on the gauge)... You can go into the AIR file with something like AirEd, modify three factors. 1) The overal range 2) A multiplying factor 3) A cooling factor.

It's still weird though, because MP has the largest effect (which is realistic).. and RPMs are next (you can hold back CHT by pulling prop-rpm back).

Anyway... it's much better than stock, and the gauge number can be used for "cause".

Also.. remember that FSX allows for detonation damage. You can set it in aircraft.cfg file (MP where detonation begins)...
 
Working presently with an airfile that has some engine damage scenarios based on CHT. Unrealistically the hardest palce to keep the engine from overheating is at low airspeed on approach with a realistically high RPM. So far I see very little effect of MP on the CHT.

The "cooling effect" seems to be primaraily related to airspeed.

The "scalar" is a multiplier which you can use as a fudge factor to achieve the correct CHT range.

Cheers: T
 
fliger747 said:
Working presently with an airfile that has some engine damage scenarios based on CHT. Unrealistically the hardest palce to keep the engine from overheating is at low airspeed on approach with a realistically high RPM. So far I see very little effect of MP on the CHT.

The "cooling effect" seems to be primaraily related to airspeed.

The "scalar" is a multiplier which you can use as a fudge factor to achieve the correct CHT range.

Cheers: T
Click to expand...
That's the exact thing that I experienced with the 1% flight models in CFS2. The engine would cook about the time I turned onto my final approach.
 
:gameon:

Guess it's beta testing time, before uploading. No idea how to do that though, so I'm just posting RealEngine v0.5 here.

Could you check it out and report back with any problems, suggestions or comments.

I have the following questions in particular:

- Pls report any problems.

- Could somebody test it in FSX? Really no reason why it shouldn't work, but I don't have FSX.

- Any _gross_ errors in the Manual? The Operating recommendations are based on reputable references (main references cited), but I can always have understood/formulated something wrongly. (_gross_ please only, otherwise this will be like opening a can of worms. )

Otherwise I'm open to suggestions on how to improve.

RealEngine includes the following modules:

- Engine Power Limitations
Simulates damage (first roughness, then failure) to the engine if % power limitations are exceeded.

- Engine MP RPM Limitations
Simulates damage (first roughness, then failure) to the engine if MP or RPM limitations are exceeded.

- Mixture State
Engine runs rough if mixture is too lean or too rich.
Engine can be damaged if mixture is too lean at higher power. High power operations like take-off or climb require rich/full rich mixture to avoid damage to the engine due to overheating or detonation.

- Spark Plug Fouling
Simulates power loss due to spark plug fouling if engine is idled for too long. Do a proper run-up!

- Gear Overspeed Failure
Generates gear failure if gear speeds are exceeded.

- Flaps Overspeed Failure
Generates flaps failure if flaps speeds are exceeded.
Asymmetric failure of flaps is modelled.

- Cylinder Head Temperature (CHT) Limitations
Generates engine failure if CHT limitations are exceeded.

- Oil Temperature Limitations
Generates engine failure if oil temperature limitations are exceeded.

The modules can be individually activated/deactivated and fully tailored to individual preferences.
Manual included.

Cheers,

Gunter
 
Looks quite interesting, will have to take a look.

Deciding what and how damages will be implimented is quite a task! For example FS tends to have a pass fail damage system. Fly over the VMO of an aircraft for 30 seconds and the plane explodes.... For trasnsport category aircraft, full load and manuver capabilities are usually available up to the stated limits. Above the certification limits lesser and generally not published load factors still exist. This can vary a lot, some BIZ jets and WWII fighters were famous for having very poor mach tuck limits, attributes that can be modeled into air file with some effort. A flight parameter that A2A left out of their otherwise nice P47.

Landing gear.... The IAS limit for extending the gear on the 747 is 275 kts IAS/M0.82. Once extended it rises to 320 Kts/M.85. The reason for this is the gear doors, most of which cycle (some stay open) and re-close. However, the gear has been extended above M1.0 sucessfully.... with damage to the doors. Some landing gear extends by free fall, in some of these cases, extending the gear above the limit speed may not allow it to fully extend and lock against the air loads, however it may or may not lock down (it probably will) after the airloads are reduced. The gear limit on the F4U was due to the gear doors for the tailwheel, the mains were able to be used as dive brakes and a seperate control was used to extend them without extending the TW. The Fairchild/Fokker F27 had what we called a drag brake, which was a seperate switch thta extended the main gear but not the nose gear and could be used up to the VMo of the aircraft!

I am sure that you have put a lot of thought into this! Especially looking forward to seeing how the engine parameters are implimented.

Cheers: T
 
To get this out of the way, and not to raise to many expectations. :kilroy:

Failures definitely don't happen as they would with a real plane, but are intended to occur exactly (or with a small safety margin) if limitations and operating recommendations stated in the POH are exceeded.

So RealEngine is not for those who want to push the planes to their physical limits, and have them fail realistically, or would like to know the real damage the plane would sustain. Would be nice, and I would be the first to agree, but I wouldn't be able to realistically simulate under what conditions a real plane would fail, nor did I intend to. This is no competition to Accusim... ;)

The effects are not necessarily very realistic either (but I would appreciate any advice how to make them closer to what one would observe in a real aircraft!).

However, RealEngine may help to fly according to POH.
For those leasurely GA pilots like me who tend to be a little heavy on the throttle, skip the run-up ect, as there's no real disadvantage doing so with most planes, it adds the fear of a failure if recommended operating procedures are disregarded.

Just to make the scope of the program clear.
Thanks in any way to have a look at it. :wavey:

Gunter
 
Reading the manual, you spell out quite clearly the objectives and features. A very intillegent approach! That it can be customized for each aircraft is a very good method.

Good job! T
 
Am already stripping 'race ready' A/C from those who'll get the realistic treatment.

Kudos for finishing the MacRobertson in 'roastable' the GeeBee, I wanted to use it, but realized it wouldn't stand a chance with that handicap system they devised. Ive used that realism gauge (from the GeeBee) in a couple other A/C for quite a while and am very happy with it, but yours looks to be alot more fun (challenging).
 
Who said I'd finished the McRobertson? :d
I just finished a flight from Surabaya over Bali island to Mataram in Indonesia. The Gee Bee had been hangared in Surabaya since december... Just no time with the RTWR, the gauge and other stuff. It felt so good to be going again... 7 legs to go to Melbourne...
 
teson1 said:
Who said I'd finished the McRobertson? :d
I just finished a flight from Surabaya over Bali island to Mataram in Indonesia. The Gee Bee had been hangared in Surabaya since december... Just no time with the RTWR, the gauge and other stuff. It felt so good to be going again... 7 legs to go to Melbourne...
Click to expand...

No worries, I'll prolly see you fly overhead any day now as I put down around there, and have been drinkin mai-tai's ever since.
 
Thanks to those who have downloaded and tested; I guess no news = good news. Seems everything works perfectly.

I'd really like to know whether it works at all in FSX before uploading though.
Did anybody try it at all in FSX? Or could do a quick test.

Thanks a lot.

Gunter
 
teson1 said:
Thanks to those who have downloaded and tested; I guess no news = good news. Seems everything works perfectly.

I'd really like to know whether it works at all in FSX before uploading though.
Did anybody try it at all in FSX? Or could do a quick test.

Thanks a lot.

Gunter
Click to expand...

So far, so good, in FSX ..

This is a very impressive bit of work.. I'll report more as I keep testing ..

Quick question.. I'm going to try it in a twin. Will it only affect one engine ?
 
Further report...

After tweaking the parameters to fit my Bonanza.. and tweaking the Bonanza's air-file for better numbers.. I'm really impressed with this add-on. Thanks for taking the time to create and share it.. !

Now I just gotta figure out how to get it to read/write from a data file, for flight-to-flight, cumulative abuse.
 
Hi Brett,
thanks for the feed-back!
Great to hear it works in FSX as well. :jump:

I'll wait a day or two if any further problems pop up, and upload then.

I think you've meanwhile found out it fails a single engine on twins. But I know you're up to date on your single engine failure drills.

Thanks.

Gunter
 
I'm certain I can copy, rename and edit certain modules for twin-engine use... so I'm focusing on what it takes to read/write to a text file..

Thanks again for all your work :salute:
 
Per cubic inch, the above mentioned R2800 CB 16 is a deal! About $3,700/cyl or $25/cu inch. My Super cub engine was $6,240/cylinder or $78 per cu inch.

Cheers: T
 
More reporting (this is a lot of fun).. :wavey:

I did as I alluded.. copied/renamed engine specific files.. edited them to relate to engine '2'.. added them to the panel.cfg.. and it works well (so far).

I don't use the status panel, now that I've refined the parameters (for a customized Carenado Seneca)(non-turbo-charged, 200hp Seneca I)..

I had already edited the air-file for more realistic gauge responses (namely CHT).. and made custom gauges (for non-turbo-charged MP/RPM)..

More testing is required.. but it's pretty much doing what I'd want.. FORCING me to fly realistically :jump:
 
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