Coron-Air 15"

By Shrediquette on Apr 11, 2020

30  960  12

CAD files can be found here:
https://shrediquette.blogspot.com/2020/04/my-15-inch-long-range-setup-for-2020.html

This is my latest 15 inch ultra-long range setup with 50 minutes flight time:

  • Propellers: 15x5.5" Tarot with custom hub
  • Motors: T-Motor MN3110 470 kV
  • Frame: 240g custom carbon structure
  • Lipo: 2x 4S 4000 mAh SLS 20C (parallel)
  • Camera: Micro Runcam micro sparrow
  • Firmware: INAV
  • FC: Holybro Kakute F7
  • ESC: Tekko32 F3
  • GPS BN-180
  • Compass: QMC5883L
  • Receiver: FRSky R9 slim+
    Hovering flight time is 50 minutes at 8.5 Amps and 40% throttle. Current goes up to 12 A when flying 50-60 km/h

Flight characteristics are really good when tuned properly (you'll nee a HUGE D-term). INAV 2.4.0 PID settings:

set mc_p_pitch = 85
set mc_i_pitch = 60
set mc_d_pitch = 150
set mc_p_roll = 85
set mc_i_roll = 60
set mc_d_roll = 150
set mc_p_yaw = 200
set mc_i_yaw = 70
set mc_p_level = 40
set mc_i_level = 10
set max_angle_inclination_rll = 500
set max_angle_inclination_pit = 500
set dterm_lpf_hz = 30
set use_dterm_fir_filter = OFF
set yaw_lpf_hz = 50
set dterm_setpoint_weight = 0.600
set dterm_notch_hz = 108
set dterm_notch_cutoff = 72
set rate_accel_limit_roll_pitch = 2400
set rate_accel_limit_yaw = 360
set heading_hold_rate_limit = 30
set d_boost_factor = 1.500
set d_boost_gyro_delta_lpf_hz = 40
set antigravity_gain = 2.000
set antigravity_accelerator = 5.000
set tpa_rate = 20
set rc_expo = 77
set roll_rate = 27
set pitch_rate = 27

Photos

Part List

Frame

Shrediquette - the award-winning multirotors by William Thielicke
Shrediquette.blogspot.com
See Site

Flight Controller

Holybro Kakute F7 V1.5 STM32F745 Flight Controller W/ OSD Barometer for RC Drone (12 builds)
Banggood.com
$45.00

ESCs

Holybro Tekko32 35A 3-6S Blheli 32 4 In 1 Brushless ESC support Telemetry for FPV Racing 30.5x30.5mm (105 builds)
Banggood.com
$59.58

Motors

4 x T-Motor MN3110 KV470 | Ceres Webshop
Aerolab.de
See Site

Propellers

Tarot 1555 CCW negative Requisiten TL100D02 hoch effiziente Blade Propeller
Ebay.com
$5.09

FPV Camera

Runcam Micro Sparrow 2 Super WDR OSD 700TVL CMOS FOV 150 Degree 2.1mm 4:3 FPV Mini Camera NTSC PAL (63 builds)
Banggood.com
$34.99

FPV Transmitter

AKK X2-ultimate International 25mW/200mW/600mW/1200mW 5.8GHz 37CH FPV Transmitter with Smart Audio (38 builds)
Banggood.com
$19.90

Antenna

Lumenier AXII 2 Long Range 5.8GHz Antenna (RHCP) (10 builds)
Getfpv.com
$19.99

Receiver

FrSky R9 Slim+ OTA 915MHz Mini Receiver - ACCESS (34 builds)
Racedayquads.com
$27.99

Batteries

2 x SLS XTRON 4000mAh 4S1P 14,8V 20C/40C SLSXT40004120 - Lipo Modellbau Akkus bei Stefansliposhop online kaufen
Stefansliposhop.de
See Site

Radio

FrSky Taranis QX7S 2.4GHz RC Transmitter - Carbon or Blue (50 builds)
Racedayquads.com
$184.99

Goggles

Fatshark FSV1076 Dominator HD3 HD V3 4:3 FPV Goggles Glasses Headset with HD Port DVR for RC Drone (83 builds)
Banggood.com
$499.00

Radio Module

FrSky R9M 900MHz Long Range Transmitter Module for FrSky R9 Series (72 builds)
Banggood.com
$61.80
Show stores (7)

Discussion

Sign in to comment

Dev   Apr 14, 2020  

Amazing! Would love to see a video of it in action. If you're not willing to share the drawing for the custom frame, is there an alternative frame that you can reccomend? :)

Shrediquette   Apr 17, 2020 

I updated the description with the link to the CAD files.

Dev   Apr 21, 2020 

Cool! Thanks :+)

BirdbrainRC   Apr 17, 2020  

Oh wow! Didn't expect to see you here, your blog was a huge inspiration to me back when I first got into the hobby - your Bolt hexacopter was what really made me want to try designing my own frames :) Great to see you're still coming up with awesome projects, this looks fantastic!

Shrediquette   Apr 17, 2020 
1

Funny, thanks :) Yes I am not that active anymore - I just have produced too many daughters that take all my time.... X-)

Minichado   Apr 13, 2020  

huge kudos for using my favorite cam ever! Micro sparrow 2 is dabomb

fmcprogrmr   Apr 11, 2020  

Very nice build. But for some more serious long range flights, which your rig is certainly capable of, I reccomend mounting your RX & TX RC antennas vertically. Horizontal antenna config gives a very incosistent signal and failsafes not far out.

Shrediquette   Apr 11, 2020 

Hi, the antennas will be almost vertical in forward flight. And they'll be 90 degrees to another. I think this is a good compromise.

fmcprogrmr   Apr 11, 2020 

Yes but you can't/shouldn't take a break from forward flight to enjoy the view or check something out. You don't have to worry about any of those things with a vertical setup. I flew with the same antenna setup and R9 for awhile and it was sketchy as hell signal consistency wise until I switched to a vertical setup. Love your build!

StickyRice   Apr 11, 2020  

Omg i love the name!! its so new!! was it inspired from something? just kidding hahaha...lookssss sleek dude!! the smooth body and tube arms look so smooth!!

Shrediquette   Apr 11, 2020 
1

Well, yes... There is a famous beer brand with a similar name - I confess... :)

kwadkenstine   Apr 11, 2020  
1

Thank you

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