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Posted

I took off and only after 5 minutes discovered that my starboard engine magnetos were both off. Tried again - the engine starts and operates normally with both magnetos off.

“Mosquitoes fly, but flies don’t Mosquito” :pilotfly:

- Geoffrey de Havilland.

 

... well, he could have said it!

Posted

Check if coil booster wasn't depressed during flight, some times they got stuck in push in position, same with starter buttons.

System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor

Posted
1 hour ago, grafspee said:

Check if coil booster wasn't depressed during flight, some times they got stuck in push in position, same with starter buttons.

Read his second statement: "The engine starts and operates with both magnetos OFF".

LeCuvier

Windows 10 Pro 64Bit | i7-4790 CPU |16 GB RAM|SSD System Disk|SSD Gaming Disk| MSI GTX-1080 Gaming 8 GB| Acer XB270HU | TM Warthog HOTAS | VKB Gladiator Pro | MongoosT-50 | MFG Crosswind Pedals | TrackIR 5

Posted
6 minutes ago, LeCuvier said:

Read his second statement: "The engine starts and operates with both magnetos OFF".

coil booster will make engine run with magnetos off.

System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor

Posted (edited)
57 minutes ago, grafspee said:

coil booster will make engine run with magnetos off.

you mean the "booster coil" like the "Zündspule" in a car, I get it. So the Mossie provides both a battery-powered booster coil and the magnetos (which are basically little generators) for generating the high voltage pulse.
Why did they design so much redundancy into the ignition system? Having two magnetos per engine is already a level of redundancy I would think.
 

Edited by LeCuvier

LeCuvier

Windows 10 Pro 64Bit | i7-4790 CPU |16 GB RAM|SSD System Disk|SSD Gaming Disk| MSI GTX-1080 Gaming 8 GB| Acer XB270HU | TM Warthog HOTAS | VKB Gladiator Pro | MongoosT-50 | MFG Crosswind Pedals | TrackIR 5

Posted (edited)
37 minutes ago, LeCuvier said:

you mean the "booster coil" like the "Zündspule" in a car, I get it. So the Mossie provides both a battery-powered booster coil and the magnetos (which are basically little generators) for generating the high voltage pulse.
Why did they design so much redundancy into the ignition system? Having two magnetos per engine is already a level of redundancy I would think.
 

 

Booster coil is only to provide enough energy for ignition system to start engine, magnetos are not working yet at very low rpm.

It happen to me, landed mossie after flight, i cut fuel, but engines would not stop completely, i found later that starter buttons and booster coils buttons were depressed, somehow they got stuck pressed on 🙂

This is why i asked about it 🙂

Edited by grafspee

System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor

Posted

Same happens in Mustang if player has his controls set up in a way that makes starter switch stay pushed all the time (Mustang has the booster coil connected to starter circuit, so there's no separate button). At least in Mustang the engine running that way develops much less power compared to "proper" way with magnetos. @Bozon, did you notice the same in the Mossie?

In either case, I think we're getting into game limitations anyway. In real life the booster coil would most likely fail quickly as it's not designed for continuous operation. That's just not simulated in DCS though, because player is not supposed to keep these buttons pressed all the time.

Why does it happen? I'm sure it's the old bug of DCS, where If look at some button, click on it and keep it pressed, then look away in other direction, the "cockpit-clickability-code" gets stuck and keeps that button pressed/clicked even if you let go of the physical mouse button. You have to look at it again and click it one more time to "unlock" it.

i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.

Posted

I did not notice if the booster button stayed depressed - it’s kinda hard to see it from my normal head position and I don’t shove it into that cockpit corner much during the flight…

I’ll check this and report back.

“Mosquitoes fly, but flies don’t Mosquito” :pilotfly:

- Geoffrey de Havilland.

 

... well, he could have said it!

Posted (edited)
14 hours ago, grafspee said:

Check if coil booster wasn't depressed during flight, some times they got stuck in push in position, same with starter buttons.

This is confirmed. Booster button stays depressed after I stop clicking on it - I use the right+left mouse buttons method to start the engines.

If I click on the booster button again it gets released and THEN if the magnetos are off the engine shuts down - otherwise I can keep flying with the booster depressed and magnetos off.

Edited by Bozon

“Mosquitoes fly, but flies don’t Mosquito” :pilotfly:

- Geoffrey de Havilland.

 

... well, he could have said it!

Posted

Like @Art-J siad, booster coil wasn't designed for continuous use, so in RL booster coil would fail eventually, but in DCS booster coil works indefinitely, so you can fly with magnetos off with reduced power.

My advice is to check every time after you complete start up, if booster/starter buttons are "off", this will make sure that you are not utilizing some abnormal flight procedures 🙂  

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System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor

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