Completed swap to Shorai LFX36L3 and did W&B
Got delayed some but just completed the swap of my Odyssey 1200 with the Shorai LFX36L3 and weighed the RV-10 again.
First, in 2.5 years the RV-10 gained 12 pounds. I weighed the plane after I imported it to the US and before Mel did the airworthiness inspection. Since then I installed HID lights, a rear strobe light, rudder trim, a Flap Positioning System, an anti splat air oil separator, 12 inch vinyl N numbers, a control head for a soon to be installed ADS-B system, interior lights, repaired 2 wheel fairings, and a bunch of other misc stuff. So 12 pound increase seems right.
Installing the Shorai LiFePro was straight forward and only needed the use of some of the pads that come with the battery and some balsa wood spacers. No battery box mod was required.
The result:
Empty weight and CG before: 1668 pounds and 108.0216
Empty weight and CG after: 1638 pounds and 106.2668
Saved 30 pounds and moved the CG 1.755 inches fwd. It turns out the battery moment arm on my -10 calculates as 203.83 inches.
Real world, I can carry my family (365# front seat, 270# rear seat, 130# in baggage) and be within aft CG at zero fuel. In comparison, before with the same passengers I could only carry 84# of baggage and be within CG at 0 fuel. So I gained 46 pounds of baggage capacity which is very useful with 2 women!
The only drawback is fwd CG solo cured by putting 20# in the luggage area.
So far battery is strong cranking the engine. More to follow as I get time on it.
TJ
__________________
RV-10 N331JH 3rd owner (First flew in 2005, #15 flying)
Northwest Regional 52F
Last edited by Flying again! : 03-04-2014 at 09:28 AM.
Reason: Correct an error in CG shift
|