Engine management

[Avalanche110]

Had an engine fire after about 30 minutes of flying.

I was monitoring egt’s and had them around 900’

 

I read the early access manual but didn’t find any reference to engine temperature management.

What temperatures should I be aiming for during takeoff, level flight and landing?

[FoxTwo]

Same as the Mi-8.

 

https://www.mudspike.com/wp-content/uploads/guides/DCS Mi-8MTV2 Guide.pdf#[{"num"%3A108%2C"gen"%3A0}%2C{"name"%3A"XYZ"}%2C0%2C540%2C1]

 

[Avalanche110]

Thanks @FoxTwo

i didn’t think 900’ was excessive. Might be a EA bug. If it happens again I’ll report it as a potential bug

[AlphaOneSix]

860 is as hot as it's supposed to go for an unlimited time, I think 910 is the 30 minute limit? Maybe it's 60 minutes. I'd have to check the book and I'm too lazy to do that right now.

[Avalanche110]

As per Mi-8 manual, Courtesy of FoxTwo

 
MAX RATED -990’c

TAKE OFF -990’c

MAX LIMITED cruise -955’c

MAX CRUISE - 910’c

CRUISE - 870’c

 

[zerO_crash]

Here are the limits for Mi-8/Mi-24/Ka-50 (TV3-117VM/A):

 

Engine EGT:

990*C - 6 min max. continuous take-off power (limited by EEG under normal operation)

955*C - 60 min continuous nominal power

910*C - Unlimited cruise power

 

Engine RPM:

101.15% - 6 min max. continuous take-off power (limited by EEG under normal operation)

99% - 60 min continuous nominal power

97.5% - Unlimited cruise power

 

Engine EPR:

"T" - 6 min max. continuous take-off power

"M" - 60 min continuous nominal power

"C" - Unlimited cruise power

 

870*C/95% engine RPM - Is for economic cruise flight

 

Also, for the two upper which have a limited (not infinite operation), a 5-minute cooldown after 6min/60mim will permit you new 6min/60min. It's in order not to overheat components inside the engines, and specifically the turbine blades, which under high temperature, for prolonged time, can deform and lose their properties resulting in reduced power (and higher EGT for the same power settings) or malfunction.

Edited June 19, 2021 by zerO_crash