Incorrect nozzle behavior on engine shutdown

[r4y30n]

As discussed here, the starboard nozzle should be closed and the port nozzle should be open under the following conditions:

 

1. Starboard engine shutdown

2. Hydraulic transfer pump secured

3. Flight hydraulic pressure reaches 0

4. Port engine shutdown

 

Also looks like this behavior was common to both TF30 and F110 engines.

 

Source

[fat creason]

This is incorrect. The F110 nozzle is actuated hydraulically by engine oil pressure in each respective engine. My understanding from our SMEs is that when oil pressure drops, the nozzles will generally move to the closed position unless blown open by the exhaust. There will be a fix for this coming soon.

 

See this post below for more details:

 

https://forums.eagle.ru/showpost.php?p=3912300&postcount=17

 

The TF30 nozzles are actuated hydraulically via fuel pressure instead of engine oil pressure. The operation of either system has nothing to do with the hydraulic system of the aircraft.

Edited May 17, 2019 by fat creason