Thread Tools
This thread is privately moderated by kopterheld, who may elect to delete unwanted replies.
Jun 02, 2019, 07:50 PM
Registered User
Thread OP

Happymodel Sailfly-X micro FPV racer

With a flying weight of under 68 grams a big fun. The FPV Micro Racer is so great to fly. So far, I have had so much fun with only 5 inch racers, but never with a micro racer with a size of 105mm motor distance. Betaflight 4.0.2 is installed on the SailFly X. The throttle is limited to 75%. If the throttle is set to max. 75%, you have no more vibrations and the battery lasts longer. I've taken over the PID settings from the YouTube Albert Kim channel.
The flight behavior of the Micro is awesome. Fly perfectly with the original 3S 300mAh Lipo.
There are only two disadvantages of the SailFly-X and this is the D8 receiver loses the connection after 100 meters and the bad video antenna that does not reach more than 100 meters. I have already flown other racers with 25mW and they had better video channels or antennas and thus a better video reception. The D8 receiver can be replaced by a FrSky R-XSR or with FrSky XM receiver, then you have a perfect reception with 1 to 2 grams more weight. Then I would be at 70 grams takeoff weight. The SailFly is so durable I did not think so. I have repeatedly crashed on the hard ground and nothing. Only the propellers have bent. The propellers I could even turn back and fly on.

Sailfly-X at
Banggood with Coupon: TTxBG10

My full DIFF from Betaflight 4.0.2 here:

Video 1 – Happymodel Sailfly X Micro FPV Racing Drohne
Happymodel Sailfly X Micro FPV Racing Drohne (7 min 0 sec)

Video 2 – Sailfly X Micro FPV und FuriousFPV True-D X Modul FPV Video
Happymodel Sailfly X Micro FPV und FuriousFPV True-D X Modul FPV Video (2 min 47 sec)

Video 3 – Sailfly X 3S Freestyle mit 64 Gramm BetaFlight 4.0
Sailfly X 3S Freestyle mit 68 Gramm BetaFlight 4.0 (3 min 33 sec)

– Good flight characteristics
– Very light only 38 grams
– low cost
– durable frame

– bad video transmitter range
– only 25mW VTX
– no CCD camera
– CrazyBee F4 can sometimes burnout

Sailfly-X at
Banggood with Coupon: TTxBG10
Sign up now
to remove ads between posts

Quick Reply
Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Happymodel Sailfly-X 105mm Crazybee F4 PRO 2-3S Micro FPV Racing Drone PNP BNF w/ 25m Merch 37 Jun 18, 2019 07:21 AM
Mini-Review HappyModel Sailfly-X: Cheap "Toothpick-style" FPV quad, how good is it? (review, wip) SoloProFan Micro Multirotor Drones 9 Jun 15, 2019 02:49 PM