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Well, it might be too far off considering the sheer mass of for example the exhaust pipes and how long they could take to cool down if there first were glowing red or something.

The ticks aren't produced by coolant temperature though. If you idle the engine with radiator shut at low rpm, the exhaust wouldn't get nearly as hot as warming up with rev and keeping the radiator open. Both might give the same 120 deg C for coolant but one option would produce quite a bit bigger temperature differences between cooled and uncooled engine parts. Temperature difference between CHT and coolant might also be viable alternative to using coolant temperature alone as an indicator.

(Then again, I don't know the internal workings of the effect "trigger". And it's not a conventional "trigger" as per se, but merely an input value to a randomizer function. It could have CHT in the function determining "frequency" of taps and I just didn't notice it. I could try to guess the nature of the "trigger" by running the engine hard to 79 deg C and shutting off, to see if temperature differences play a role or whether it's solely modeled on coolant temperature. I don't see why I'd reverse engineer it, though. It would be kinda pointless for me to do that.)



Yeah, but as they're now, you simply can't "not notice" them.


I noticed that much. The samples are run through a randomizer that takes [x] as an input (x seems to be coolant temp but I can't be certain) that controls the average frequency of sample plays. They're not at regular intervals (which is good) and they come more frequently when engine is hotter (which is good).

Are they recordings of Allison engine cooling sounds? Do you have similar recordings for Merlin since Spitfire seems to miss such noises at version 1.31?

Either way, one heck of a good job improving the modular Accusim family. I can't even remember how "bad" the Spitfire 1.0 was (even though it arguably was the best Spitfire simulation from the very first publication). Very nice to see new life being blown into "old" products. Hopefully it also means continued sales of these old products as they're always up to date with the level of precision to newer ones. You do deserve all success.

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Some wishlist to 1.4 update:
Add an option for ground crew to rotate the prop by hand to SHIFT+3 panel, please. You can run the starter without mags for a few turns but for some planes (with the cost of draining the battery), but it's impossible for others - like Spitfire MkII: it'd be one heck of a waste of Coffman cartridges...

...and that was my short wishlist, more or less. (Plus bugfixes and other stuff discussed already of course.)

This still needs to be put on the "commercial" or buy stuff here site.
Cheers.

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"If other eyes grow dull, other hands slack, and other hearts cold in the solemn trust, ours shall keep it well as long as the light and warmth of life remain in us."

Hey Scott, did the fuel return code from the P-51 make it into the P-40 in this update? If not, is it possible to put into the next patch?

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Yes, we can add this feature for the P40 and Spit.

regards
ROB

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A2A Simulations Inc.

Hi Rob,
You wrote: "Yes, we can add this feature for the P40 and Spit."

Wow! just give me enough time to wreck an engine this time before the next update

M. Jordan.

Sweet! Where does the Spit return to?

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Castle Bromwich, for its semi-annual checkup.

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I like Thunderbolts! (Link to MySpace tribute page)


120th Fighter Wing, Montana Air National Guard

Guess I should've been a little more specific there...

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Easy answer...unless it is a Mk VII, VIII, Mk IX or above, it doesn't!!

The I, II and V had no fuel return. Sorry guys!

In the later marques, the fuel returns to the top tank and that is not separately cocked, so there is no "management" needed, gravity uses that fuel first and the return line puts any unused fuel from the aerator/fuel cooler back to that tank. If the top tank is empty, the fuel condenses and gravity feeds to the lower tank anyhow.

Darryl

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...Some say he never blinks, and that he roams around the woods at night foraging for Merlin parts...

Hello, and as always, congratulations on this masterwork of engineering the whole team has called into existence. the finest and best in the Flight Sim community.

A question, will the advanced ground physics be available for the Spitfire in the next core update, or maybe it is already added ? im not sure if it behaves differently than before.


PS:
Mr. Whiic, keep up the good work man.

Yeah, that's what I figured, whether the fuel returns or not the pilot sees nothing since the tanks are tied together. I guess if you're using a slipper tank on a later mark then maybe you'd see the trickle of fuel into the internal tanks... Either way it's irrelevant to our current planes (and the upcoming Mk V).

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Here is what we have in beta testing atm:

v.1.3.1x

General:
- Workaround for loosing engine stats after the update [Needs testing].
- Bug in cabin temperature code fixed. This also affected cabin fogging.
- Bug fix where sometimes one mag would not fire correctly


P-40
New features:
- Added Auto Cold & Dark option
- The pilot is removable
- Added engine cool down crack sounds
- Added carburetor fuel return line (reserve tank)

Improvements / Bug fixes:
- Increased aileron effectiveness at mid range speeds, reduced at high to match chart. peak 95 deg sec at 270mph ias, 50 lb stick force.
- P-40 ram air / carb heat lever and logic fixed


Spitfire
New features:
- Added Auto Cold & Dark option
- The pilot is removable
- Added engine cool down crack sounds

Improvements / Bug fixes:
- Fixed Pneumatic pressure building after engine stops
- Increased pneumatic pressure useage with flap operation


P-51
Improvements / Bug fixes;
- Shorter oxygen hose
- Increased aileron effectiveness slightly to match flight test. peak 95 deg sec at 310mph ias, 50 lb stick force
- Fixed / improved some specular texturing
- Trim can be more finely tuned
- FSX external sound fix
- Added sounds to IFF panel, stores release, lower arming panel switches, and fuel selector switch

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A2A Simulations Inc.

That sounds fantastic, Scott.

Quick question: Did you guys manage to find a fix for the Aftercoolant bug? I deleted both .dat files and fixed it for a few engine hours but then it came back.

Thanks-

Joe

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Hi Scott,

will the "high power" problem of the P-40 also be fixed? The airplane has gone much faster and difficult to slow down after 1.3.1. I have also noticed I need for runup and 2200 rpm only 22inches instead of before 26 inches.

BR,
E.

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Joe,
You are describing something different if it comes back after a few min. I just took a peek at things and can actually see a scenario where that might happen. I put the fix in the update.

E,
We fixed something in the oil drag physics a while back, and everything has fallen much better into place since. What you are seeing now is closer to the way it should be. The runup for the p-40 will be 2300RPM / 25" and this is reflected in the checklist for the next update.

Scott.

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A2A Simulations Inc.