Only a single rotor but lighter than many quads. This is a Kit version built with a Mateksys wing flight controller which runs inav.
The engine is a 1508 Flywoo 2350kv motor powered by a 3s 850mah nano-tech pack. This gives about 15 minutes flight time. Max speed is 100km/h.
As the motor is a bit heavy in the rear it needs 10 extra gram in the front to meet the recommended center of gravity. Weight without battery is 193g, AUW is 262g. So choose a lighter motr if you want to stay below 250g.
I first started with a 3-blade 4 inch propeller. When it broke on a failed autolunch, I switched to a Gemfan 5x5 bi-blade.
BTW: INav autolaunch is nice when working but a beast on first time use. When I had not yet a beeper installed I did not throttle up before throw. .. and crash! With beeper it is more obvious that autolaunch will fail without throttle.