Aces High Bulletin Board
General Forums => Wishlist => Topic started by: Interceptor on May 23, 2015, 05:13:38 PM
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Altitude was a huge time modifier to cool down engines during WWII (at 30k+ temp is below zero, often -30F for exemple, and is still very low at 20k... ),
it would be nice to have that featured in a flight simulator like Aces High II... :pray
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The density is also much lower at high altitude so the heat capacity of the air is lower and therefore the heat transfer is lower and cooling capability lower. Think of it this way: if you took it to the limit there would be no air at all and therefore no convective heat transfer at all. You'd be left with radiative heat transfer only.
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I second that^^^^
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What 715 said. I vaguely remember it being a big issue for air cooled motors at high altitudes, its really hard to get rid of heat high up.
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Source: D.(Luft)T.3605 A-B, 0 u.1. DB605A-B Motoren-Handbuch (November 1942).
(http://i60.tinypic.com/33afa8h.jpg)
At 10000m the G2 engine(for this exemple) reached 217 degrees Fahrenheit after 10 minutes at max power,
At sea level it reached 239 degrees C after same test...
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We dont have problem with overheating engines. Only thing that can be affected is WEP.
Remodeling the engines so that they can overheat and fail can be an interesting feature, not sure if people really want it dough. Part of the point with the game is that u dont need to be a pilot to fly, just jump in a plane and go.
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Interesting, I can't read german, what was the manifold pressure at the two altitudes?
Does AH even model engine temp except for when coolant is lost?
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Does AH even model engine temp except for when coolant is lost?
It doesn't.
Neither plays it a role in normal operations, nor in WEP usage, which is strictly based on time.
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Altitude was a huge time modifier to cool down engines during WWII (at 30k+ temp is below zero, often -30F for exemple, and is still very low at 20k... ),
it would be nice to have that featured in a flight simulator like Aces High II... :pray
If you wish faster at alt, you are actually wishing better radiator modelling in general...and that isn't a simple thing to implement.
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At 10000m the G2 engine(for this exemple) reached 217 degrees Fahrenheit after 10 minutes at max power,
At sea level it reached 239 degrees C after same test...
Wouldn't the load on the engine (the work it's doing) be different in the dense air at sea level vs the thin air at 10000m?
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Wouldn't the load on the engine (the work it's doing) be different in the dense air at sea level vs the thin air at 10000m?
:airplane: thing you have to remember is that at altitude and in cruise confg, usually the power settings are reduced to 60 to 70% of rated power, so therefore, your engines or engine doesn't need cooling like it does below 10,000 feet.
One of the things you HAVE TO BE aware of is engine cooling to rapidly during descent, as that will ruin valves quickly.
AH remodeling for engine temps would be a waste of time! Most of the guys in here fly WAO 100% of the time, so you would have engine failure left and right and they wouldn't understand what was happening! (the pilots in this game)
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I think if they added realistic engine modeling it would be really fun and interesting. LIke the engine getting overheated and quits. It will make folks talk less and put more concentration on flying. :aok
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I think if they added realistic engine modeling it would be really fun and interesting. LIke the engine getting overheated and quits. It will make folks talk less and put more concentration on flying. :aok
talking with friends is what keeps me here.
semp
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talking with friends is what keeps me here.
semp
I meant like talking a bunch of crap on 200.
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should be easy to implement a faster cooling at X% throttle I guess.
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I meant like talking a bunch of crap on 200.
exactly.
semp
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If they added realistic engine management, most would pop engines endlessly.
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Realistic engine modelling... reminds me IL2 and DCS...
You need to mode: radiator cover and its opening and closing, supercharger operating, startup procedures. Cooling dependent on an aircraft speed and what is more important learn the exact check-list for every damn aircraft and engine.
Believe me guys, you don't want it. You'll spend lots of time doing things that are both boring and distract you from the task. Considering that in AH you fly many different types and switching them every special event, and you don't get your check on an aircraft to learn all its tricks...
Bottom line, I flew IL-2 with guys that thought that this was "the thing - the ultimate realism" - and got back to AH.
I think HTC did a great job for distinguishing between stuff that needs to be implemented/modeled and stuff that does not.
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I think HTC did a great job for distinguishing between stuff that needs to be implemented/modeled and stuff that does not.
You got that right.
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Do this wish and you would have to throw in WEP injection tank size limiting total WEP time on some planes in addition to the time base wep now..
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If you want to play with engines breaking down due to realism, play in the WW1 arena with the engine governor turned off. Then vulch players and use diving away to run to a reset at full throttle. Your engine will quit working quickly in either dive. And then you just wasted up to 10 minutes getting to the fight.
Hitech answered one of these requests for more realistic engine management\effects with, you are forgetting about the 30min you would spend on the ground getting ready to take off. I've often wondered over the years if his cryptic answers like this are a fair warning of how draconian he would code it. He has followed that up with saying in effect the game is about getting out there and fighting within the physics he coded. So he removed all of the extraneous time consuming parts and implemented his auto engine management for his environment.
And like someone kept repeating, most players would end up destroying their engine on almost every sortie. How many hours of ground school and cockpit time did the real pilots have to spend before they stopped being their engine's worst enemy in the air? The real world washout rate in WW2 would manifest itself in our game as players canceling their subscriptions and playing WT.
Say Earl, what was the real world startup check list, then all of the things you had to listen, feel and watch for with WW2 era engines when you flew them? How long did it take between starting the check list and wheels up on average?
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Having played Rise of Flight, I can tell you radiator management is a PITA. Give this one a -1.
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If you want to play with engines breaking down due to realism, play in the WW1 arena with the engine governor turned off. Then vulch players and use diving away to run to a reset at full throttle. Your engine will quit working quickly in either dive. And then you just wasted up to 10 minutes getting to the fight.
Hitech answered one of these requests for more realistic engine management\effects with, you are forgetting about the 30min you would spend on the ground getting ready to take off. I've often wondered over the years if his cryptic answers like this are a fair warning of how draconian he would code it. He has followed that up with saying in effect the game is about getting out there and fighting within the physics he coded. So he removed all of the extraneous time consuming parts and implemented his auto engine management for his environment.
And like someone kept repeating, most players would end up destroying their engine on almost every sortie. How many hours of ground school and cockpit time did the real pilots have to spend before they stopped being their engine's worst enemy in the air? The real world washout rate in WW2 would manifest itself in our game as players canceling their subscriptions and playing WT.
Say Earl, what was the real world startup check list, then all of the things you had to listen, feel and watch for with WW2 era engines when you flew them? How long did it take between starting the check list and wheels up on average?
Ok, now instead of all that hullaballoo, what if they launched you in a plane that had already been properly preflighted and warmed up?
I think it might go over well in some scenarios, likely not in the MA. ROI to implement would be erm... 'questionable'.
Wiley.
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Say Earl, what was the real world startup check list, then all of the things you had to listen, feel and watch for with WW2 era engines when you flew them? How long did it take between starting the check list and wheels up on average?
Once pre-flighted there isn't much else to do. The pre-start check list and start on 4 engines takes much less time than it takes the engines to warm to 40C oil temp so you can taxi.
B-17
Preflight complete
Flight Forms checked
Fuel and oil checked
Doors and exits closed
Transfer valves and switches off
Flight controls free and correct
Generators On
Beacon light on
Strobes off
Static selector - tube
Ignition master switches on
Mag switches off
fuel valves open
Landing gear switch Off
Landing light switch Off
Flaps switch off
Fuel boost pumps off
Turbo Open
Avionic master off
Cowl flaps Open and locked
Mixtures idle cutoff
Props High RPM
Battery switches checked and on
Hyd Pump Check
Gear indicators - 3 greeen
Manifold pressure (noted for field baro power check during sunup)
Chip Lights and Hyd pressure warning lights - test
Parking brake set
Start:
Desired engine CLEAR and confirmed by ground crew
Boost pump on
Engage starter and count 6 blades
Primer on count 3 blades
Magneto On - engine will start on the 12th blade (usually) - tickle the primer to keep it running
Mixture to Auto Rich
After all started
Avionics master on
Oil Pressures checked
Boost pumps off
Vacuum checked
Temps 40C before taxiing
Oil Pressure check
Oil Pressure
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We dont have problem with overheating engines.
You have obviously never had a radiator hit LOL