Engines fail to start if fuel is not drained by dry-cranking prior to an aircraft repair.

[Sarix]

Hi.

If the Mi-24P is cold-started from the ramp, and then shut down for repair without draining the remaining fuel from the engine, the engines will fail to start even after a dry-crank after repair. Attached is the track-file - I used acceleration in multiple places to speed up the process, otherwise it would be nearly 15 minutes long.

Steps to reproduce:

1. Cold-start the Mi-24.

2. Break it by any means (I allowed the main rotor to hit the ground in the track).

3. Shut down the engines. Don't dry-crank them.

4. Request a repair from the ground crew and wait.

5. Dry-crank the engines.

6. Start the engines.

7. Profit - the engines won't start.

Cheers.

Mi-24P repair engines.trk

[admiki]

It is a sort of a bug, but not in the way you think.

If start is aborted for any reason, you need to wait about 60 seconds before attempting another start. DCS sees dry crank as a start attempt.

I followed your steps, but I first dry cranked left engine, then the right and only then tried to start, first left engine then right one. Both started fine.

This is a known occurence, even from the Mi-8.

Edited April 23, 2024 by admiki

[Sarix]

Hi admiki,

Interesting information. From memory - dry-cranking both engines sequentially takes roughly a minute and that's what I remember doing in the track. I also had a previous multiplayer session where no amount of dry-cranking saved me and I had to re-slot.

But I'll check it out when I have time to launch DCS again.

Cheers.