XK X251 Whirlwind Quadcopter

Managed to get hold of this XK X251 Whirlwind (upgraded version) in gearbest‘s XK Sales recently for US$69.99. Now the price is back at US$107.79.

XK product page: XK X251
Gearbest product page: XK X251

Specifications and features list:
• Brushless motors
• 6G and 3D modes
• Charge time about an hour
• Flight time about 10-13 minutes
• Built-in 6 Axis Gyro
• 2.4GHz control system
• Product weight: 0.205kg 
• Product size (L x W x H): 17.70 x 17.70 x 8.30 cm / 6.97 x 6.97 x 3.27 inches 

The box


Open box


Wonder why they went and broke off part of the Styrofoam box to put in the UK adapter sweat.gif
Contents
20160906_230433 
• X251
• X7 remote
• XK 7.4V 950mAh 25C battery (in the X251)
• Balance charger
• Charger
• Spare properllers (1 set) 
• Screwdriver & allen key
• English instruction manual
• UK socket adapter

X251


X251 1307 type brushless motor
20160906_230703

XK 7.4V 950mAh 25C battery & balance charger


X7 remote

Uses 6 AA batteries

X251 shows green LED when in 6G mode
20160906_233229

X251 shows red LED when in 3D/acro mode.
20160906_233235

LED on the X251


PROS

• Good RTF package
• Great punchout
• Futaba S-FHSS protocol (range > 300m)
• 3D/acro mode
• Compatible with V686G & Yi-Zhan X6 camera modules
• Good X7 programmable remote
• Less than 250g even with a FPV camera
• One of the cheapest brushless quad

CONS

• No power switch on the quad
• No arming/disarming sequence

Conclusions:
A good beginner brushless quad while it’s cheap, robust, fast, agile, able to carry a small camera or FPV kit and with a great radio range. The 6G mode is ideal for beginners, very stable. 3D/acro mode, can experience flying in real racer conditions especially equipped with the 5.8G FPV kit. The XK X251 comes with good programmable radio, better lights, better radio range, real acro/3D mode available, more solid and lighter.

Apologize as was unable to produce any flight videos as I haven’t purchased the FPV kit yet.

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