I am planning the locations of two 20 amp Panasonic batteries (14.6 lbs each) and the 3, Power Distribution Grids (14 volt dual battery/dual alternator/cross-tie).   This is a Legacy RG with a Cont. 550, Hartzell 3 blade and Dual Screen Chelton.

 

My understanding is the Starter/Avionics PD Grid is usually located on the forward side of the firewall along with one of the Batteries…  Any suggestions?

 

Another PD Grid could be located either on the aft side of the firewall or on the Avionics Shelf.  I hear things get very crowded behind the panel.

 

Some of the Legacies in the factory workshop are putting one or two Battery/PD Grids  behind the seat back and locating the Hyd. Pump just behind the right seat back.  Pros & Cons? 

 

I have heard some 550 Legacies are having starting problems and aft CG concerns.  Those of you who are flying could be very helpful to those of us who are still in decision mode.

 

Steve Colwell