KevvvLar FHSS is a Futaba radio protocol. So long as your receiver is using the FHSS then you’re fine.

KevvvLar Thatall depends on what you're flying. From personal experience I wouldn't use a folding propellor on anything other than a motor glider. Looking at the stats for the motor it produces 150g of pull on a 6x3 prop. Your model would have to weigh between 215g - 250g to give a thrust ratio of 60-70% of the AUW (all up weight) - that is if you're sticking the prop on a motor glider. If it's anything other than a glider I wouldn't bother with a folding prop because the model moves too fast and the blades fold back too easily leaving you no power to pull the aircraft through the air.

KevvvLar If you look at the test data for different propellers the required ESC would vary between 20 to 40 amps. Smaller props with less voltage would require less amps.

KevvvLar Not as standard but if you plug it into your computer you can download different sound files. I think on the one I ordered it had sound files for a radial engine and I downloaded the sound files for a Merlin engine found in a Spitfire. Sounds great.

KevvvLar Yes. Loosen the grub screw and take out the wire leg. Be sure to file or grind a flat onto the side of the leg in contact with the grub screw otherwise the leg could twist on contact with the ground. You’ll notice a flat on it already, just do the same 90 degrees to that.

KevvvLar A 5x3 prop would do just fine