Saturday, November 9, 2024

Getting ahead of the game.

 We started looking at avionics two years ago at Oshkosh.  We already have some parts, others are currently on the list.  BOLD parts we have.

Engine:

  • Lycoming IO360 Mattituck
  • Plasma III ignition
  • Slick Magneto Model 4371
  • Silver Bullet Prop

Avionics: The goal is IFR capable, but no intent in extended IFR flight.  We have a low thin cloud cover several months each winter around here.

  • Advanced Flight Systems (AFS) 6600 panel
  • Garmin G5 OR Dynon D30 OR uAvionix AV-30-E OR Horis
  • Dynon remote Com head

  • PS engineering AFS integrated 4 place audio panel
  • Dynon Autopilot remote head
 
  •  
  • Bendix Escort II is a NAV/Com and gets us IFR without needing to go Garmin at all.

 
We are on the fence still for the AFS ACM system control module, or traditional circuit breakers.
 

Back on the move

 A year ago a friend stopped by to help us get started on the final shaping process.

 








The first primer coat looks better than expected, but there are places around the fuel sumps that need more touch-up.

Friday, October 21, 2022

Fuel system

The image is of an Anderson 3 way fuel valve.  The valve has four detente positions.  

 


 

 

 

 

 

 

 

 

 

 

 

 

The configuration of the inputs is the T with a central output opposing the stem.  The valve has already been plumbed into the plane.  Right and Left input on the two arms of the T, and the base of the T is plugged.  The picture of the valve core below shows the input hole through the side of the valve core.


Fuel system valve core
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The way the system is currently plumbed both the up and down handle positions block the fuel flow.  This means that when changing between tanks you must pass through a closed position and this is not a preferred practice.  
While we could re-plumb the valve to have the base of the T and one side of the T be the inputs, thus not passing through a closed position when switching tanks, we prefer to use the valve as a BOTH/OFF valve.
Suggested modification of the valve is to make the port in the valve core pass all the way through the core.  This modification would give the condition of two BOTH (open) conditions, and two closed conditions.  Every 90° would change conditions.

Bottom of Fuselage shaped and primed