XT is for Extreme Torque - for every day parkflyers upto 2 lbs in weight.
XTF is a faster version of the XT using the same motor and a bell conversion that increases the Kv of the motor for faster RPM on a smaller prop. Two Motors in one with a bell change.
500XT for ParkFlyers, larger 3DLight 11 inch max prop planes
500XTF for
Sport Plane, HydroPlane, 8 inch max prop planes
Specifications
Max Current: 16 Amps 3S
KV: 900 500XT
Weight: 62 grams
Prop: 11x5 max
KV: 1650 500XTF
Weight: 57 grams
Prop: 8x4
Size: 32.6 mm diameter
Shaft Diameter: 4mm
Max Watts: 180
Power Usage: 2S, 3S,4S supported Mount holes: standard 16 & 19
Screws: 3mm diameter, .5 pitch standard screws.
I am currently flying my 500XT converted to 500XTF with the High Speed Bell with an 8x4 prop on a 20 oz Sport Plane. It is fast, high thrust and extremely fun. I chose the 500XTF due to the max prop size of the plane being 8". 60 MPH is as fast as this plane should go and is extremely fun flying like a pylon racer. I put a 1000 mah 20C battery in the plane for great flight time and low amp draw.
This is a conversion of the 500XT to higher speed (Higher KV) by swapping the bell with a high speed bell. This is excellent on an 8x4..8x6 prop Here is a video of a 20 oz balsa plane flying the 500XTF.
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