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Archive for July, 2019
Posted by Qwinout | Jul 30, 2019 @ 04:03 AM | 2,303 Views
Preorder Happymodel Larva X 2-3S 2.5inch Brushless FPV Racing Drone 100mm Wheelbase Crazybee F4 PRO V3.0 AIO Flight Controller Camera Angle Adjustable 25mw~200mw VTX


Preorder,will be available at August 15th to August 30th

Brand Name: Happymodel
Item Name: Larva X 2-3S 2.5inch Brushless FPV drone
Wheelbase: 100mm
Size: 88mm*88mm*45mm(without propellers)
Weight: 50g(without battery)
Recommended Battery:

3S 300mah/350mah 2S 450mah

New Crazybee F4 PRO V3.0 AIO Flight controller 2-4s Lipo Compatible

Powerful and smoothly
Betaflight OSD support ,easy to get RSSI, Voltage ,current from your goggles
Camera Angle adjustable
VTX power switchable 25mw~200mw
Smartaudio ready , change VTX bands, powers, channels via OSD
Receiver option : Frsky D8 ,Flysky , Specktrum ,Frsky RXSR ,TBS CRSF

Diamond VTX Ready
Compatible both for 2s-3s Lipo/LIHV
Posted by Qwinout | Jul 28, 2019 @ 10:31 PM | 2,187 Views
Radiolink A560 3D Fixed Wing Airplane need review,is any one interested in it? the Radiolink Factory will send the airplane to you directly.


This is their new product.now need 2 or 3 reviews,here is what they requested
1. The best evaluation theme is . Product features / highlights or use tutorials to avoid simple out of the box video
2. Don't mention how and how you get the product to measure (so you can let the tester fans see the assessment is fair and equitable)
3. Video and other content related to: out of the box, product function introduction and off-site use, etc.
4. Be sure to put the official purchase link store and official website address below the video (currently only Amazon US station, AliExpress store), after-sale contact information (reflecting our friendly service)
5.it would be great if Reviewer has more than 1000 fans ; or have at least 300 fans
Any one who want this airplane,please contact me at [email protected] ,...Continue Reading
Posted by Qwinout | Jul 22, 2019 @ 10:59 PM | 2,202 Views
Happymodel XT30 Plug Pigtail Power Wire 100F Capacitor for Mobula7 HD Sailfly-X TRASHCAN UR85 UR85HD Crazybee F3 / F4 PRO Parts


Wholesale link

Wire length: 70mm(include xt30)
Height: 2.6gram
Used for : Crazybee F3 / F4 PRO series flight controller
Can avoid the risk of burning the mosfet or the 5v regulator at the moment of power on
With this Capacitor , we can use 3S 300~350mah battery for the Crazybee F4 PRO V2.0 and Crazybee F4 PRO V2.1 , and 2s 300~350mah battery for the Crazybee F4 PRO V1.0
And if you want to use the battery above 350mah , we recommend use 220 uF or above capacitor.

We found most of the 5v regulator and esc of the Crazybee F4 flight controller burnt after mod the PH2.0 to XT30 . Also, more powerful the battery is(lower esr than stock battery) , more possibility to fail. And, the temporary solution is add a low esr capacitor onto xt30 connector. This capacitor should have a esr less than 0.2 ohm and have a capacitance more than 100uF. Rubycon ZLG/ZLH series and Samyoung NXB series are what we have tested and recommended.
Following pictures show what happened after plug in battery:
Without 100uF, the max spike voltage increase to ~25v while with 100uF it decrease to about 20v, which is acceptable to Crazybee F4 PRO V2.0 and Crazybee F4 PRO V2.1
Posted by Qwinout | Jul 19, 2019 @ 03:04 AM | 2,380 Views
GEPRC Phoenix3 GEP-PX3 140mm Wheelbase F4 FC 3 Inch FPV Racing Drone PNP BNF W/ RunCam Micro Swift Camera VTX 1206 4500KV Motor


Name: PHANTOMThe size of the gep-px3 version is more of an outdoor flight, and the size and power upgrades mean better flight performance.

The frame is a 3-inch version of PX, and the lens protection material is still 7075 aluminum.The overall use of 3K carbon fiber, 3mm thickness of the bottom plate and 1.5mm thickness of the top plate to ensure the durability of the frame.3D printed TPU tail combination LED lamp design.Position the battery up and down according to the flight habits.The overall model is compact and delicate, beautiful appearance.

This major upgrade to the powerpack will be paired with SpeedX's gr1206-4500kv motor and the EMAX AVAN Mini 3-inch propeller, powered by a 4s battery, for excellent flight performance.

The camera adopts Runcam Micro Swift, and the flight control system adopts STABLE F4 Towe 20A version, which is simple and convenient to install, STABLE and good system, suitable for small wheelbase competition.

Wheelbase: 140mm
Camera protection: 7075 aluminum
Bottom plate: 3mm
Top plate: 2mm
side plate: 1mm
Motor: GEPRC GEP-GR1206 4500Kv
Propeller: EMAX AVAN Mini propeller
GPRC STABLE F4 Tower (GEP-F4-BS20A-VTX58200-M) V1.4
Flight Controller: Betaflight F4 OMNIBUS
ESCs: 20A BLHeli_S/...Continue Reading
Posted by Qwinout | Jul 17, 2019 @ 10:45 PM | 2,926 Views
GEPRC PHANTOM Toothpick Freestyle 125mm 2-3S FPV RC Drone Quadcopter PNP BNF with 1103 8000KV Motor F4 Flight Control 12A ESC


Many people prefer the 4S version,the 4S version with 5500KV motor,it is preorder now ,will be available at the beginning of August,same price

Motor: GEPRC GEP-GR1103
Wheelbase: 125mm
Propeller: 65mm
VTX:5.8g 200mW
-Weight: 51g (without battery)

1.All 3k fiber carbon plate
2.GEP-12A-F4 AIO
3.GEP-GR1103 motor
4.Support 2-3S Lipo
5.Include betaflifht OSD
6.IRC Tramp

-1 x PHANTOM Quadcopter
Posted by Qwinout | Jul 13, 2019 @ 03:58 AM | 3,740 Views
it seems that many people are talking about cinewhoop,and many factories in China are producing cinewhoop FPV Drones
but what cinewhoop means ?
As far as I am concerned,cinewhoop is a frame kit that can carry a Camera like GoPro Hero 7
like these drones ?
Posted by Qwinout | Jul 11, 2019 @ 05:38 AM | 2,179 Views
Drone FAQ Analysis and Solutions


Q:The motor cannot be started after power-on, no sound

R:Poor contact of power connector

A:Reinsert the connector or replace the connector

Q:The motor cannot be started after power-on, and the 哔-哔-, 哔-哔-, 哔-哔- warning tone is issued (the interval between every two sounds is 1 second)

R:Battery pack voltage is abnormal

A:Check battery pack voltage

Q:The motor cannot be started after power-on, and a 哔-, 哔-, 哔- warning tone is issued (the interval between each sound is 2 seconds)

R:Receiver throttle channel without throttle signal output

A:Check if the cooperation between the transmitter and the receiver is normal, and whether the throttle control channel wiring is tight.

Q:After the power is turned on, the motor can't start, and the "哔, 哔, 哔, 哔, 哔" sounds a single tone.

R:The throttle is not reset to zero or the throttle stroke is set too small

A:Put the throttle stick to the lowest position;

Reset throttle stroke

Q:After power-on, the motor will not start, and a 哔-哔- beep will sound, then a 56712 special tone will sound.

R:Throttle channel "positive/reverse" error

A:Refer to the remote control manual to adjust the positive/reverse orientation of the throttle channel.

Q:Motor reversal

Q:Wire...Continue Reading
Posted by Qwinout | Jul 10, 2019 @ 09:41 PM | 2,341 Views

This is indoor copter, Cant be flying outdoor when there is wind!Cant be flying too high to affect the sight!
It is necessary to go to a place with a large space to play it (Especially the novice must pay attention)!

If the Copter collides with items such as walls, you must timely lower the throttle! Otherwise ESCs and motors may be burned, and battery may be burned or exploded.

About the Li-po Battery:
1s=3.7v is the best retention voltage for the copters battery. After fully charged, it is about 4.2v. The battery voltage is below 3.5v for over-discharge.

2s=7.4v. After fully charged, it is about 8.4v. The voltage is below 3.5v 7.0v for over-discharge.

The battery that just flying used cannot be charged immediately (it will cause damage to the battery).

If you have any questions, such as binding Remote controller, please contact our customer service, we will provide technical services in a timely manner.
BeatFlight Firmware download URL

Driver download:

Before Flying, Please check if all screws on the motors and other place are secure.
The welding part of Flight controller is easy to be damaged , Please connect the battery and the copter kit very carefully. (Take out the battery a little first and then connect it to the flight controller. DO NOT tug on the cables with the flight controller directly, or it will be damaged)

Please connect the battery in the right way (Red wire to Red wire, Black wire to Black wire). Wrong connection will damage the Flight Control Board.

The ESC/Flight Controller/Motor/Battery and other accessories are damaged due to personal flight errors. Please purchase accessories to replace them yourself.
Thank you for your cooperation.