Freemasm
Well Known Member
A friendly challenge/request for help to Mr. Froelich, Mr. Stucklen, and others with an art for electrical/electronics.
I'm building an electrically dependent aircraft that will have redundant electric fuel pumps. Either is selectable as "primary" (no dedicated primary/boost/back-up) and my plan is to keep ~ equal run times. Of course, each will have a manual switch. I like Mr. Stucklen's automatic back-up power/timer but it appears to me (ME background) that this is intended for dedicated primary/boost config. I'd like to incorporate something similar.
How would you approach this? My initial thought would be a parallel power circuit that blindly energizes both pumps if the low pressure condition = true; warning light also, of course. What would you talented electrical types do?
What is not an option for me:
- Getting said functionality from any of the known power management systems. There appears to me to they would introduce single point failures for my liking.
- Introducing fluid system components like check valves, etc.
Any thoughts and ideas that could be shared would be appreciated. Sorry if this has been hashed our previously.
I'm building an electrically dependent aircraft that will have redundant electric fuel pumps. Either is selectable as "primary" (no dedicated primary/boost/back-up) and my plan is to keep ~ equal run times. Of course, each will have a manual switch. I like Mr. Stucklen's automatic back-up power/timer but it appears to me (ME background) that this is intended for dedicated primary/boost config. I'd like to incorporate something similar.
How would you approach this? My initial thought would be a parallel power circuit that blindly energizes both pumps if the low pressure condition = true; warning light also, of course. What would you talented electrical types do?
What is not an option for me:
- Getting said functionality from any of the known power management systems. There appears to me to they would introduce single point failures for my liking.
- Introducing fluid system components like check valves, etc.
Any thoughts and ideas that could be shared would be appreciated. Sorry if this has been hashed our previously.