2.5" 2s

By wiigelec on Dec 13, 2019

12 1,212 6

design specs

purpose: racing
prop: 2.5"
frame: 115mm
batt cells: 2s
mot kv: 6000-8000kv
auw: 120g
t/w class: 6x
tot thrust: 720g
mot thrust: 180g
75% tot pow: 245 W
75% tot cur: 33 A
75% mot cur: 8 A

build specs

frame: 125mm (14g)
motor: 1106 6000kv (8g)
esc: 12 A
batt: 650 mah (32g)
auw: 117g

Photos

Part List

Frame	GEPRC GEP-PT Phantom Toothpick Freestyle 125mm 2.5 Inch Carbon Fiber Frame Kit for RC FPV Racing Drone Quadcopter Amazon.com	$21.99
Flight Controller	NameLessRC AIO412T F4 12A AIO Toothpick / Whoop Flight Controller (5 builds) Racedayquads.com	$30.79
Motors	4 x T-Motor F15 1106 6000KV Brushless Motor from Cyclone FPV Cyclonefpv.com	$43.96
Propellers	Gemfan Flash 2540 Tri-Blade 2.5" Prop 8 Pack - Choose Your Color (171 builds) Racedayquads.com	$3.69
FPV Camera	Foxeer Predator Nano V4 1000TVL 16:9/4:3 NTSC/PAL CMOS FPV Camera w/ OSD - Choose Connector & ColorFluorescent Green / Pads / 1. (19 builds) Racedayquads.com	$36.90
FPV Transmitter	AKK Race 25-200mW VTX w/ Pit Mode & Smart Audio - MMCX (11 builds) Racedayquads.com	$9.99
Antenna	Lumenier AXII 2 5.8GHz 90° MMCX Antenna - Choose Your Polarization (20 builds) Racedayquads.com	$19.99
Receiver	FrSky XM+ 2.4GHz Micro ReceiverDefault Title (1149 builds) Racedayquads.com	$15.99
Batteries	RDQ Series 7.6V 2S 650mAh 60C LiHV Micro Battery - XT30 (4 builds) Racedayquads.com	$7.24

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Discussion

Yinka_Brasil May 28, 2020

Hi there, which props are those in your main picture? In your list of parts you have Gemfans 2540, but the other ones look different (maybe HQs?). I'm assuming you decided on the Gemfans for better efficiency? Just curious. Thanks!

L0stB1t Jan 15, 2020

Looks amazing. How would this compare to the original GepRC Phantom? And what flight times do you get at 450 or 650 mAh?

wiigelec Jan 16, 2020

thanks for the comment!

i have never flown factory phantom so no way to compare. also this was a winter build so no outside flytime yet just basement hovering. get 6+ minutes hover time, though for actual hard flying i only require 3 minutes

sharkbyte Jan 15, 2020

Have you tried the 8000kv motors? Did you test with a smaller lipo too, like a 450mAh?

wiigelec Jan 15, 2020

thanks for the comment!

8000kv motors - generally i like to use the lowest kv motors that meet the design thrust specs. of course this is still on paper since the weather is not conducive to outdoor flying. once actual flight performance is assesed it may be necessary to consider higher kv.

wiigelec Jan 15, 2020

battery - i did consider 450mah but for only ~2g more the 650mah made sense.

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