FR7 Heavy Cruiser HD

By JoeShu on Aug 09, 2021

20 220 3

This is my new 7 inch build, this time I had a clear idea in mind, I want to trade weight and flight time for high speed cruising performance.
So i choosed the FR7 frame for its joined arms to reduce frame floppiness. And reused the 2807 motor to carry more weight.
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The dry weight reached 800g, She is a thick girl indeed~
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I designed some tpu mount for the DJI VTX , GPS and all the Ants, I intensionally move all the component further back to offset the Center Of Mass a bit back,
So that I can place the batter right in the middle.
But the didn't print that well......
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Photos

Part List

Frame	FR7 v4.x Frame Cut Files by stynkebutt (7 builds) Thingiverse.com	See Site
Flight Controller	MATEK Systems F722-HD F7 Flight Controller OSD 3~8S MPU6000 32M Blackbox 5V/8V BEC comptiable DJI FPV Air Unit 30.5x30.5mm for R (9 builds) Banggood.com	$59.99
ESCs	T-Motor Pacer 32Bit 60A 3-6S 30x30 4in1 ESC (3 builds) Racedayquads.com	$80.90
Motors	4 x EMAX ECO II Series 2807 Motor (1300KV/1500KV/1700KV) (8 builds) Getfpv.com	$103.96
Propellers	DALPROP Cyclone T7056C Pro Props Long Range High Efficiency 2 Pairs (7 builds) Pyrodrone.com	$3.79
FPV Camera	DJI FPV Air Unit Digital 5.8Ghz 1080p/60fps 28ms/4km HD Recording FPV Transmitter Camera Combo for FPV Racing Drone RC Airplane (294 builds) Banggood.com	$180.79
FPV Transmitter	DJI Digital HD FPV Air Unit Module (121 builds) Getfpv.com	$119.99
Antenna	1 Piece iFlight Albatross 5.8GHz 3dBi Gain Omnidirectional FPV Antenna SMA/RP-SMA LHCP/RHCP 15cm For RC Racer Drone (7 builds) Banggood.com	$14.99
Receiver	TBS Crossfire Nano Rx (1506 builds) Getfpv.com	See Site
Batteries	2 x FULLSEND LR VTC6 18650 6S1P 3000mAh 22.2V Li-Ion Battery - XT60 Shop.iflight-rc.com	$131.98

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Discussion

TeamWolfFPV Aug 18, 2021

Creative build! Do you have STLs available?

JoeShu Aug 18, 2021

To be honest, the TPU part is not good for printing and it feels floppy. I'm currently working on a better version.
Anyway, I will proved the STL as well as STEP file for this version on Thingiverse with a new account, My original account got locked somehow........

JoeShu Aug 21, 2021

Here is the stl file : https://www.thingiverse.com/thing:4936709

JoeShu Aug 25, 2021

OK, I have the more Compact version:https://www.thingiverse.com/thing:4941363

Marcus W. Aug 14, 2021

How long is your flight time with this battery?

phaley51 Aug 09, 2021

Awesome Build! Interested to see what flight times/overall range you can get out of it.

JoeShu Aug 10, 2021

Thanks. :)
I didn't do a proper flight time test, So I don't have numbers. But I fly it with a 6s 18650 LI-ion pack, after 6 mins of speed cruise, I landed at 3.5v per cell.
I'd say 10mins of cruising should be just enough.