Crocodile 7" Cruiser

By DougS2K on Jan 01, 2020

13 1,691 12

This quad is built for just cruising around medium to long range while maintaining a good 15+ minutes of flight time. It's running iNav with proper failsafes in place so no worrying about it not coming home unless something catastrophic happens. 1016g total weight including battery.

Photos

Part List

Frame	GEP-LC7 Frame - GEPRC (2 builds) Geprc.com	$59.90
Flight Controller	Flight Controller F722-SE – Matek Systems (2 builds) Mateksys.com	See Site
ESCs	4 x Skystars Talon32 Slim40A 40A BL_32 F3 3-6S ESC w/ RGB LED Support Telemetry for RC Drone FPV Racing Banggood.com	$51.88
Motors	4 x Emax ECO Series 2306 6S 1700KV 4S 2400KV Brushless Motor for RC Drone FPV Racing (77 builds) Banggood.com	$63.96
Propellers	2 Pairs HQProp DP7X4.5 7045 7 Inch 2-blade Durable PC Propeller compatible POPO 2CW+2CCW for RC Drone (6 builds) Banggood.com	$3.64
FPV Camera	Caddx Analog FPV&HD Recording Camera Tarsier V2 (63 builds) Caddxfpv.com	$69.90
FPV Transmitter	FX2-ultimate VTX (International Version) (25 builds) Akktek.com	$26.99
Antenna	US $8.23 44% OFF\|Pagoda 2 pagoda 2 5.8GHz FPV transmitter Antenna SMA & RP SMA Plug Connector for RC FPV Racing Drone Racer 2pcs Aliexpress.com	See Site
Receiver	FrSky R9 MM-OTA ACCESS 16CH 900MHz Long Range RC Mini Receiver Support Wireless Upgrade Firmware Inverted S.Port RSSI Output (8 builds) Banggood.com	$31.99
Batteries	ZOP Power 14.8V 6500mAh 30C 4S XT60 Plug Lipo Battery RC Quadcopter Car Banggood.com	$37.99
Radio	US $100.99 \|Jumper T8SG Plus V3 Hall Gimbal Multi protocol 2.42 Aliexpress.com	See Site
Goggles	FatShark Scout 4 Inch 1136x640 NTSC/PAL Auto Selecting Display FPV Goggles Video Headset Bulit-in Battery DVR (10 builds) Banggood.com	$199.99
Misc Parts	Beitian BN-880 Flight Control GPS Module Dual Module Compass With Cable for RC Drone FPV Racing (3 builds) Usa.banggood.com	$19.26
Misc Parts	ViFly Finder 2 Buzzer - Lost Drone Finder/Locater/Alarm (174 builds) Racedayquads.com	$14.99
Radio Module	FrSky R9M 900MHz Long Range Transmitter Module for FrSky R9 Series (69 builds) Banggood.com	$61.80
Backpack	URUAV UR7 36L Backpack 40x55x22mm with Waterproof Transmitter Beam Port Bag DIY Room for RC Drone FPV Racing (5 builds) Usa.banggood.com	$39.99

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Discussion

Unionglzr Feb 28, 2021

you forgot to add beer,meals and gas used during build

wueeee Nov 03, 2020

Is it possible to mount 19x19 motors on this frame?

DougS2K Nov 07, 2020

Not really sure. There is a little extra room with these 16x16s mounted but not sure if a 19x19 would actually fit. It would be close but I couldn't say yes for sure unless I had a 19x19 to actually try to mount.

humbleninja Sep 13, 2020

Any updates on the total build weight and flight time?

DougS2K Sep 16, 2020

No update on the flight time yet. I was testing out my failsafe settings and ended up clipping a tree which led to a crash and damaged one of the ESC's. This happened just after waiting 3 months, yes 3 MONTHS, for a GPS mount. Currently waiting for a replacement from Banggood and it's taking it's sweet ol time to get here as well. Also took the liberty to order a spare ESC and spare motor this time in case of future incidents.

As for the weight. Without battery it's 490g, and totals 1016g with battery. She's a heft girl but still has plenty of power. Hovers around 28% throttle.

choppergirl Apr 10, 2020

Can you get a DJI air unit in the Crocodile frame? It looks low but spacious.
cg.air-war.org

DougS2K Apr 25, 2020

Honestly not sure. There is quite a bit of room. Could take measurements if needed.

otoycool Jan 08, 2020

cool build sir, what kind of tpu mount that you use for GPS an VTX Antenna, or any links for the 3D print?

DougS2K Mar 29, 2020

Sorry for the terribly late reply. GPS mount is this one https://www.thingiverse.com/thing:3335586 which I had printed via RaceDayQuads. VTX and antenna is this one https://www.banggood.com/Realacc-15_53916_5mm-TPU-SMA-MountRX-Antenna-Fixing-Seat-for-31mm-Spaced-Frames-RedBlue-p-1312869.html?rmmds=myorder&ID=229&cur_warehouse=CN.

otoycool Apr 12, 2020

Thanks Sir... :D

OptimaZe Jan 01, 2020

Holy Battery Batman!! That's awesome! What kind of flight times are you getting?

DougS2K Jan 01, 2020

Haven't flown it yet due to winter weather but I'm expecting in the 15-20 minute range.

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