Sub100g flight over 20 minutes

By kera on Jun 01, 2023

18 372 6

A small competition was held in Japan where participants used quad weighing less than 100g to continuously fly for 20 minutes and complete as many laps as possible.

I developed this drone specifically for that purpose.
Using this quad, I was able to win the competition.

Through this experience, I gained insights into flying with high power efficiency
・using larger propellers with low pitch
・lower KV values
・minimizing the weight of the aircraft, and maximizing the battery capacity.

Please check out the archived video on YouTube Live to see how the competition unfolded.

https://www.youtube.com/live/yNVPwM6Fpz4?feature=share&t=3907

Photos

Part List

Frame	FPVCycle BabyTooth Frame (CHOOSE THICKNESS) (54 builds) Fpvcycle.com	$12.49
Flight Controller	Happymodel DiamondF4 ELRS/FRSKY AIO 5-IN-1 Flight controller built-in OPENVTX ESC OSD Receiver (12 builds) Tinywhoop.com	$58.01
Motors	4 x BeeMotor 1103 10000KV with Plugs Rotorev.com	$53.96
Propellers	Gemfan Hurricane 3018 Durable Bi-Blade 3" Prop 8 Pack (1.5mm) - Choose Your ColorGrey (22 builds) Racedayquads.com	$3.29
FPV Camera	Ultra Tiny FPV Camera Team-blacksheep.com	$14.95
Batteries	4pcs 1S LiPo Battery 600mAh HV 3.8v 90C/180C JST-PH2.0 Connector Upgraded for for Eachines Trashcan Emax Tinyhawk 2 Freestyle II Walmart.ca	See Site
3D Printed	tbs ultra tiny cam mount for fpvcycle babytooth by odekake_P Thingiverse.com	See Site
3D Printed	whoop for fpvcycle babytooth by odekake_P Thingiverse.com	See Site

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Discussion

Mr_Stripes Jun 03, 2023

Thats really cool! If you aren't already, I think you could gain some efficiency by using solid pin ph2.0. The ones you have look like the crimped type.

kera Jun 04, 2023

I think you're right. This time, we didn't spend much on materials and built it using existing parts, so we are using this old type PH2.0 connector😅

Matt W Sep 11, 2023

BT2.0 or the GNB equivalent are your friends ;-)

Responsible_owl_fpv Jul 21, 2023

great work!
are your battery plug in series? How did you do that? tried once and fried a AIO 
thanks

kera Jul 29, 2023

Thanks!
The battery plugs are connected in parallel.
Using a small universal board, I'm combining connectors to put four 1s batteries in parallel.
The fourth picture might be helpful.

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