reported earlier 2. Engine Start issue + Workaround

[FuY]

On the issue regarding Apache Engine 2 not able to start "normally" 
I know someone has already made a post about it. but i got some more detail. 


Workaround:

If (map) temperature is above 36°C...
Impossible to start the Apache !

If temperature is between ~26°C and 36°C
Start up 1. engine normally, Throttle to "FLY" check for Ng > 95% (1. ENG), this could require some collective as well. 
Start 2. engine. 

If temperature is below ~ 26°C 
"Normal" Startup.



 

-10:

"Sufficient IPAS air is required for a suc-
cessful 2nd engine start. Ensure the

APU, external air source, or opposite en-
gine at 95% NG is supplying sufficient

IPAS air."

essentially bellow ~26° the APU can provide enough IPAS no matter the Ng of the 1. engine. 
this is what we expect as normal behavior.

however, +~26° the APU no longer provides enough IPAS 
so you need IPAS coming from the 1. engine (95% Ng) 
(why can the APU start 1. engine but not the 2. one ?) 
 

and @ +36° neither, APU or 1. Engine @ 95% can provide enough IPAS 
so you cant start the 2. Engine @ all. 

Edited April 5, 2022 by FuY

[BIGNEWY]

Hi, 

this is already reported but thank you