This is my attempt to build a ultralight 1s 85mm whoop. I should have go with a diamondf4 elrs, and save another 2 grams, but worked with i had at the moment. So i've stripped off the board connectors and soldered the motors on the board (to remove board connectors and motor plugs saved a gram).
Tested with gemfan 2023 and hqprop 51mmx2. The first one provided more punch, at expense of add about 2.5 grams and is less efficient. The later provided 5:30 of flight time with a 450mah 1s, which is not so bad. It's raining too much now, then i'll fly outside later.
Frame |
URUAV UZ85 85mm Wheelbase PVC Black Frame Kit for Whoop RC FPV Racing Drone
(2 builds)
Banggood.com
|
$9.99 |
Flight Controller |
Happymodel ExpressLRS ELRS 2G4 F4 Whoop AIO Flight Controller
(9 builds)
Pyrodrone.com
|
$65.99 |
Motors |
Happymodel EX1102 19000KV 1s Brushless Motor (Pack of 4)
Shop.makerfire.com
|
$38.99 |
Propellers |
HQProp 51MMX2-1.5MM Light Grey (2CW+2CCW)-Poly Carbonate
Hqprop.com
|
$1.89 |
FPV Camera |
RunCam Nano 3 800TVL CMOS FPV Camera w/ Plug
(4 builds)
Racedayquads.com
|
$19.99 |
Misc Parts |
HappyModel Mobula6 / Mobula7 Whoop Canopy - BlackDefault Title
(5 builds)
Racedayquads.com
|
$2.99 |
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Did you do any more flights? How durable are the motors?
I'm pretty happy with my 85mm 1S 1102 build but I would like some more kV to fly the Gemfan 2015. Currently I like the Gemfan 2023 better because they have a lot more pop for my full send flying style. youtube-> Butterfly85 1102 18k | FULL SEND | Fully developed | Last testflights