I'm putting a CRX85 in mine(SW80B tuned up by Andy at CRX turbines). It's only 2.5 ounces heavier than the K45. I plan to be minimalistic on equipment, with dual 1300mah 2s lipos, no gyro, no switches, no regulators. ECU battery is currently a 3000mah 3s lipo but will go with a 2200-2500 if I can get it to CG. They advertise a 6.7kg fully fueled take-off weight, so I'm hoping for about 15lbs wet. That's almost 5 lbs lighter than my first jet, an HSD Viper, which has about the same wing area and flies fine, albeit underpowered with an SW60b. It does seem to fly fine with a 45, but man it should really SCOOT with an 85!
Last edited by bodywerks; 10-25-2019 at 03:23 AM.