Questions on BF109F4 cold start procedure

[supanova]

As much as is possible I'm attempting to follow the procedures outlined in the "BF109G2 Flight and Maintenance Manual" for the F4. I have a couple of questions.

 

The manual mentions setting the stabiliser to "tail-heavy". Am I right in assuming this is the "-6" setting, with "3" being full forward?

 

It also refers to feed oil temperature and coolant outlet temperature. The IL2 manual indicates a "water and oil temperature gauge". I assume water is coolant outlet temperature and oil is feed oil temperature.

 

The gauge only has one needle, which is confusing because the manual insists that oil temperature should be at least 40C and coolant outlet temperature between 60-80C. How do I read coolant temperature?

 

Also the sim seems to declare the engine warmed when fuel pressure is below 1.5 kg/cm2.

 

The manual also suggests increasing the throttle to 400-500 RPM before checking oil and fuel pressure. But the aircraft seems to hold about that with idle throttle?

Edited August 28, 2016 by supanova

[JG4_Sputnik]

Hi!
Don't bother, as far as I know there's no such thing as a "manual" startup procedure in BoS. It's not as detailed as DCS for example. 

Just hit the button for auto start and be done with it. 

You can manage the engine in-flight pretty good though.

[supanova]

I understand you start the aircraft with the E key.

 

I want to start the aircraft without a warmed up engine.

[Lusekofte]

There is no such thing as cold start in this game, it will never happen. It is nothing more than mixture and start button. So what you want is a module in DCS or ROF witch is mixture, start and wait for warm engine in some servers.

COD Blenheim got the same, in cod you can if you wish turn on the magnetos too.

So this game can not provide this thing you want, I hope that is not a deal breaker for you. If it is , well that is a shame

Edited August 28, 2016 by 216th_LuseKofte

[supanova]

I really do wish I could change the subject.

 

I don't mean a complete cold start, but a cold start in the sense that the engine isn't warmed up.

[Yogiflight]

What he is talking about, I think, is, when you set the difficulty to customer, then you can set the game to engine start without prewarmed engine.

This will only work in the quickmissions or MP, when the server allows it.

About the stabilizer trim, I would definitely not go further than -1, because otherwise the 109 will start like a rocket, lose to much speed and crash down on the ground. I allways start with 0 as fighter and -1 when carrying bomb. But you are right the minus scala is tailheavy.

The temperature gauge in game only shows water temperature, or coolant outlet, IRL the pilot had to press the button on the right upper corner of the gauge then it showed the oil temperature.

I would take the temperature to know when the engine is warmed.

[SCG_Space_Ghost]

What he is talking about, I think, is, when you set the difficulty to customer, then you can set the game to engine start without prewarmed engine.

This will only work in the quickmissions or MP, when the server allows it.

 

 

-snip-

 

 

This is the correct answer.

 

You can configure cold starts in quick mission, the full mission builder or it will be configured on the server via the server admin/mission builder.

[6./ZG26_Klaus_Mann]

The DBs run 550rpm when started cold, and high power settings have damaging effect when the engine is Cold. On a less Dogfighty, more Squad based Server I think having Aircraft start up cold would be a cool feature to prevent Cross-Field Take-Offs. 

[1PL-Husar-1Esk]

This cold engine i never saw enabled in BOS mp scenario, one ROF event had it, contrary to CLOD where ACG campaign has it on

[supanova]

What he is talking about, I think, is, when you set the difficulty to customer, then you can set the game to engine start without prewarmed engine.

This will only work in the quickmissions or MP, when the server allows it.

About the stabilizer trim, I would definitely not go further than -1, because otherwise the 109 will start like a rocket, lose to much speed and crash down on the ground. I allways start with 0 as fighter and -1 when carrying bomb. But you are right the minus scala is tailheavy.

The temperature gauge in game only shows water temperature, or coolant outlet, IRL the pilot had to press the button on the right upper corner of the gauge then it showed the oil temperature.

I would take the temperature to know when the engine is warmed.

 

Thanks for your input. I really appreciate it.

 

The manual mentions the "tail-heavy" position for the stabiliser at start-up, switching to the +1 setting prior to taxi.

 

Are you sure the gauge indicates water temperature? The sim reports the engine is not "overcooled" when the needle is at 40c. That indicates to me that it's the oil temperature, as the historical manual states that feed oil temperature must be at least 40c.

Edited August 29, 2016 by supanova

[Yogiflight]

Yep, it is water, it would not have made too much sense to show oil temperature, as it was only showed as long as the pilot pressed the button. And you can easily see, that it is the water temperature, when you operate the water radiator flaps manually and open them completely, you can see how the temperature falls. The oil radiator flaps can not be operated manually.

Edited August 29, 2016 by Yogiflight

[Yogiflight]

1 hour ago, USAFdfgdn said:

Hey man,i have spent a long time trying to find the description about how to change the mode of the temperature gauge in bf109's manual.Can you provide it?Thank you very much.

The easy answer is, you can read it on the gauge itself.

On top it is written: Kühlstofftemp. Austr. (Coolant temp. Outlet)

And under the scale : Schmierstoff - Eintritt (Lubricant - Inlet 

                                                  drücken                     press)

And you can find it in the manual for 'BF109 F-1 bis F-4' on the pages 35/36 under 'Elt-Anzeigegeräte für Schmier- und Kühlstofftemperatur'                               

[Herne]

On 8/28/2016 at 10:30 PM, LuseKofte said:

There is no such thing as cold start in this game, it will never happen. It is nothing more than mixture and start button. So what you want is a module in DCS or ROF witch is mixture, start and wait for warm engine in some servers.

COD Blenheim got the same, in cod you can if you wish turn on the magnetos too.

So this game can not provide this thing you want, I hope that is not a deal breaker for you. If it is , well that is a shame

 

he was talking about the pre - warmed engine setting I think ?

 

 

[Yogiflight]

LOL, sorry mate, should have thought so, old german writing is not too easy. Some of the letters are for me, too hard to read.

 

 

Elt-Anzeigegeräte für Schmier- und Kühlstofftemperatur

Für die elektrische Schmier- und Kühlstofftemperaturmessung ist auf dem Gerätebrett rechts ein umschaltbares Anzeigegerät (30 b) mit einem Meßbereich von 0 bis 160° C angeordnet. Während die Kühlstoff-Austrittstemperatur ständig angezeigt wird, wird die Schmierstoff-Eintrittstemperatur

 

                                                           Page 36

nach dem Drücken des Knopfes am Anzeigegerät angezeigt.

 

Electrical display device for lubricant- and coolant temperature

For the electrical lubricant- and coolant measurement there is on the right side of the appliances board a switchable display device (30 b) with a measuring range of 0 to 160° C.

While the coolant-outlet temperature is displayed constantly, the lubricant-inlet temperature

 

 

                                                        Page 36

is displayed after pressing the button on the display device.

 

I hope this helps you. Anyway, it is the same, what you can read at the gauge, just with more words.

What follows in this paragraph on page 36 is where the sensors are located

[Yogiflight]

5 hours ago, USAFdfgdn said:

Very grateful for your reply,you do help me a lot.Hope you have a happy life XD.

Are you German?Is the handwriting hard for today's German?lol

Yes I am german, and yes I really think this old german writing would be a challenge for younger people. The 'E' was pretty hard for me, too, as it is very similar to the 'G' and 'S' and the 's' is something completely different to what we know. But when I was young, we had an old Bible, that was written in this old german, so I kind of learned it back then.

[Yogiflight]

Yes you usually learn it in school, however, how many really can speak it is another question. Some of them even have difficulties with speaking german