Right Engine won't kick on

mvsgas · April 19, 2011

What did you set the ambient temp to?

nomdeplume · April 19, 2011

What did you set the ambient temp to?

Hmmm that would be it... the mission's set with standard/static weather at 50 degrees centigrade. No wonder the engines are behaving a little strangely. :lol:

genbrien · April 19, 2011

with 50 degrees, take-off performances for a fully loaded A-10 would not be good lollll. Wonder if he MOTOR the engine before, would it start ?

Ghostmooner · April 19, 2011

Success!!! you guys were right, i had the summer weather set to 50, so i turned it down to 40, and i went and checked my armorment and i origionally had my fuel set to 50% sinse i had infinite fuel on, so i turned that back up to 99%, and went back in, got the right engine to turn over instantly! then i went up and out to an area where i set up some bunkers and AAA for funzies. hehehe, i don't know how to use the bomb or missle ordanence yet so i just used the gun on some bunkers. I was hoping to see some fun AAA trasers chasing me but the AAA i had set up wouldn't fire on me, ( i had immortal on). this mission i made if purely for fun and practice as i learn the in and outs of the jet, and was wondering if u guys could sudjesst some fun anti aircraft that insurgents can use that'd light up the night sky. and some juicey targets that make a big boom hehehe:joystick:

i included the track of my first solo flight in this sim, i'm really clumbsy and don't know how to use most of the systems but it should be a fun watch!

thank u all for the help! i really appreciate it!!:D

success!.trk

bluepilot76 · April 19, 2011

Good! Glad you got her going at last. Sounds like it might be a bug to me though; surely an A-10 can start in 50C. I heard somewhere that the USAAF has actually been using these birds out in a few hot dusty places over the last few decades......

genbrien · April 19, 2011

surely an A-10 can start in 50C. I heard somewhere that the USAAF has actually been using these birds out in a few hot dusty places over the last few decades......

I know Middle East is hot.... but that hot ?:huh:

mvsgas · April 19, 2011

Seem them in Luke AFB, ramps can get higher with engines running

Qatar average temp

Phoenix

Tucson

bluepilot76 · April 19, 2011

Yeah I think it can be. I always remember ATC camp to RAF Laarbruch in about 1992. It was 50C then a few days. Us cadets were dropping like flies on parade with our woolly berets on. Unless my memory has failed me again. Im sure it was though!

Ghostmooner · April 20, 2011

Good! Glad you got her going at last. Sounds like it might be a bug to me though; surely an A-10 can start in 50C. I heard somewhere that the USAAF has actually been using these birds out in a few hot dusty places over the last few decades......

yeah, that's why i think its a fuel bug, cause i put on infinite fuel, then went over and adjusted my fuel load down to 50% to make her lighter in the air.

but i put the fuel back up to 99% as well as lowerd the map temp to 40 just incase. now she works fine.

nomdeplume · April 20, 2011

I think it's reasonable to expect to use modified startup procedures in extreme temperatures. I didn't try to take off (presumably you'd have a bit less power available?) but it was easy enough to get the engines started even with the 50 degree temperature just by overriding the fuel flow governor.

Don't think it's anything to do with a "fuel bug". I didn't change (or even look at) the fuel or other loadout when I tested reducing the temperature.

Yo-Yo · April 20, 2011

Temperature limiter for TF34 has T-limit varying regarding throttle position so the curve was copied in DCS as the curve for rpm setting vs throttle position. (Maybe you noticed it when there was a transition to one of released pathches ).

Limiter reduces fuel flow when the temerature is too high at start-up so the engine hangs.

Any jet engine will suffer of overtemperature at starting. As far as I know TV3-177 in Afganistan were supllied with water that maintanance guys threw to inlets from cups :) at start-up.

I do not confident if the limiter for TF34 has temperature correction for ambient temperature... the docs I saw do not answer this question, so I think that OVERRIDE at start-up is the best solution for this situation.

I am not sure but one can try to advance throttle a little when engine hangs - the starter can be less useful when higher T-limit.

effte · April 20, 2011

Were you parked with a tailwind? Jet engines don't like that. Impressive that they have hung starts due to ambient temp modelled! Now, let us research the effect of wind direction and altitude. :)

Kaitsu · April 20, 2011

Are you waiting for the left engine to be fully started? Safest is to watch for the ENGINE START CYCLE indicator on the warning lights panel (top left) to extinguish before starting the right engine.

I have noticed that you don't need to wait for the left engine to spool up before starting the right engine. If you start them both at the same time the other one seems to wait until the other one is fully started and it will then start spooling up. Realistic or not, dunno.

Yo-Yo · April 20, 2011

Were you parked with a tailwind? Jet engines don't like that. Impressive that they have hung starts due to ambient temp modelled! Now, let us research the effect of wind direction and altitude. :)

You will notice disturbances in ITT and fuel flow when at tailwind condition. But you have to have it more than 20 m/s.

Altitude does affect engine start. And the airspeed too.

The model is true thermodynamic so the ambient parameters are kept in account naturally.

Frederf · April 20, 2011

Would it help to motor the engines to get some positive airflow going before trying to start with a tailwind?

mvsgas · April 20, 2011

I have noticed that you don't need to wait for the left engine to spool up before starting the right engine. If you start them both at the same time the other one seems to wait until the other one is fully started and it will then start spooling up. Realistic or not, dunno.

I have not try this, but I don't think that the system is waiting, just not enough air from the APU, so the other engine will not spin. Completely guessing here since I have never tried this.

Frederf · April 20, 2011

The bleed air system is pretty smart. When one ATS valve is open the other one is interlocked to closed.

rud · April 20, 2011

I've been doing this for a couple versions now, as soon as I'm ready to start left hand engine I bump the left throttle then immediately bump the right throttle.

check out the picture from DCSWiki: http://www.dcswiki.com/index.php?title=File:A10EngineStartDiagram.png

According to the schematic there is an electrical interlock in the air system that prevents both engines from being started at the same time. So it really does seem like when you bump both throttles the second engine waits in line for bleed air until the first one no longer requires it.

Blackghost · May 28, 2011

engines won't start.

I use defaul keymap to start engines. (right ALT and HOME heys) after pressing the keys a few times, the sim responds and the throttle goes to idle from off. none of the gauges show any life and the 'engine start cycle' light does not illuminate. help me! :helpsmilie:

engines won't start.trk

Noraf · May 28, 2011

I use defaul keymap to start engines. (right ALT and HOME heys) after pressing the keys a few times, the sim responds and the throttle goes to idle from off. none of the gauges show any life and the 'engine start cycle' light does not illuminate. help me! :helpsmilie:

You got the apu running, and the fuelpumps online?

nomdeplume · May 29, 2011

I use defaul keymap to start engines. (right ALT and HOME heys) after pressing the keys a few times, the sim responds and the throttle goes to idle from off. none of the gauges show any life and the 'engine start cycle' light does not illuminate. help me! :helpsmilie:

Your throttle is too far forward. It needs to be in the idle position for the engine start cycle to operate.

Make sure your physical throttle is all the way back before you use the keyboard shortcut to put it over the hump from off to idle.

I also noticed it was twitching so you might want to verify your controller is calibrated properly and the throttle can hold a steady position. Also, the RightCtrl+Enter keys within the sim will open a dialog showing the input state of your controllers.

ErichVon · May 29, 2011

this has been going on sinse the latest patch;

now i'm really new to jet sims, don't really know much about this airfraft, but i'm in a mission i made from the mission editor, and i'm doing a ramp start, but the damn right engine wont kick on. i'm following everything from the start up tuturial but when it comes to throttle to idle for the right engine, the fan and everything won't move on the gauges, and the right engine just won't turn on. No idea if this is a bug or what but it works fine in the tuturial, but not in any missions.

Hi,

I use KonKuSSioN's Ramp Start Checklist:

============================

https://docs.google.com/document/d/1OofEfpi9kHG_jmvT8Z3BXrgOD9AZzJrLgKAI-yF0-Q4/edit?hl=en&authkey=CI-D4mY&pli=1#

I also use his .map for CH gear through the CH Control Manager. I first map through Window 7 so Windows recognizes my controls. Then once CH Control Manager is installed, all controls are mapped through it, not Windows.

If you are not starting up properly, then you are doing something wrong in the start-up process. Accept this fact, and figure out what you are doing wrong.

Only 27 posts to forum tells me you are still fairly green at doing this simulator.

I have about 200 posts, I am no expert, yet.

One of the first things I noticed on setup was, when my Pro Throttle moved forward, the in cockpit throttles did not move at all. The reason for this was the OPTIONS\CONTROLS mappings have presets that have to be cleared, literally zeroed out, then remap them as you see fit as to your control gear. This drove me nuts for about a month and nobody said anything to me about it and I did ask. Also, you have to empty your presets within "joystick" . Create a folder somewhere and move them there in case you need them at a later time.

The path is:

=========

C:\Users\(your User name you are using)\Saved Games\DCS Warthog\Config\Input\A-10C\joystick

The A-10C in the path is for SIM mode, is what I did. I initially found out about this from Tev after writing a letter from here to him direct, not on Forums:

"User support" , then "New Ticket" at

http://support.digitalcombatsimulator.com/en/

You need to log in to get access to the "New Ticket" feature.

Even with me logging in with my password I get a 404 error: "Page not found" as to what used to work as "Contact Us" . Means to me they have been inundated or swamped with too many requests for help, maybe...

Forums (to my perspective) is a poor substitute that used to be any good company's Customer Support before the PC was invented. The creators of any product should be there for help if their product is not working properly, once purchased. No excuses!! Bill Gates screwed the whole Customer Support equation since the first Windows was invented and everybody does it now.

Any product should work 100% properly once purchased out of the box; but even industrial machinery usually needs some tweaking before going into production.

Erich

Edited May 29, 2011 by ErichVon

ErichVon · May 29, 2011

Your throttle is too far forward. It needs to be in the idle position for the engine start cycle to operate.

Make sure your physical throttle is all the way back before you use the keyboard shortcut to put it over the hump from off to idle.

I also noticed it was twitching so you might want to verify your controller is calibrated properly and the throttle can hold a steady position. Also, the RightCtrl+Enter keys within the sim will open a dialog showing the input state of your controllers.

If my Pro Throttle is not fully back, then engines will not start.

I have a bad habit of resting my head on my left hand and my left elbow rests on my Pro Throttle's flat area, tends to move my throttle forward.

Erich

battguano · May 29, 2011

I have a similar problem; engines won't start because my throttle won't move. I know the controls are mapped fine because if I do any training where the engines are started already I can use my throttle but for a cold start, they won't move. I am using the checklist provided by Konkkussion but for whatever reason no movement on the throttle.

bloomstomb · May 29, 2011

i don't use keymaps, i use the mouse to click on everything in the cockpit.

i went right back to the tuturial and I am doing everthing right as i can tell. i am pretty sure its a bug now cause I'm not doing anything wrong.

Well you cant mouse click engines on. Dont you HAVE to use hotkeys or hotas?

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Right Engine won't kick on

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