All programming complete and double checked.
Factory EDF weight is said to be 13.5 lbs
Factor CG is recommended at 140mm behind leading edge at wing root which has been shown to be grossly nose heavy
My target CG for first flight is 155 mm based on multiple recommendations in other forums
Weight and balance done with the XIcoy CG Machine
My conversion weight and balance:
Empty weight before fuel 10.73 lbs
Empty weight with air trap full 10.89 lbs and CG 164mm
Air trap full and header tank full 11.58 lbs and CG is 161mm
Weight with all tanks full is 13.47 lbs and CG is 163 mm
CG moves only 2mm with centerline tank fuel
Take off weight is equal to the EDF version
Weight after defuel with air trap full is 11.00 lbs and CG is 161mm
This is about 2 oz of unusable fuel in header and centerline tank
Weight after defuel with air trap full and 2 oz in the nose is 11.13 lbs and CG is 152 mm
This is a good empty CG for first flight
Landing should be about 2 lbs lighter than the EDF version
Total useable fuel is estimated to be 1.55 Liters or 52 oz based on my punch jug markings.
This should easily give a 6-8 min flight time or possibly more depending on thrust settings
Jet is ready to fly.
Hope to fly this week. Stay tuned!