Flywoo LR4 5 Inch conversion

By StuPa on Feb 12, 2025

1  0  2

Flywoo LR4 meets Ran4 TEOSAW Frame to 5 Inch conversion

I built a 5 inch copter from a Flywoo LR4 Explorer frame and a Chinese copy (Ran4). The arms are from the LR4 and the body from the Ran4. The frame is a good deal lighter than the original LR4, which saves weight.
I also used lateral carbon motor supports to support the new 131mm wheel base. Now up to 5 inch propellers can be used, which increases efficiency.

The result: It is much smoother and quieter in the air than my other original LR4. I am currently testing 4.5 inch 4524 propellers.

All in all a light 4-5 inch copter with 1404 3000KV motors should have potential to reach its 5-7km distance and 15km range - of course with smooth flying ;). I am curious if I can beat the performance of my LR4 with 4S 18650 VTC6 : 20:05 min (at 2.8V) with a maximum distance of 5.0 km.

I will add 4S 18650 Liionen battery- and rangetest as well as components ;).

And here is my new addition: a G2 with conversion to 3x patch in LHCP and 1x stubby in LHCP - so NO more linear antenna. The fit is modest... I will test it -like Stitch ..
Alt Tag

Now it's time for the birth of our son.

Photos

Part List

Frame

TEOSAW Ran4 Advanced 185mm 4 Inch Foldable Long Range Frame Kit Support VISTA HD System for DIY RC Drone FPV Racing
Usa.banggood.com
$9.89

Flight Controller

SpeedyBee F405 AIO 40A Bluejay 25.5x25.5 3-6S Flight Controller (2 builds)
Speedybee.com
$55.99

Motors

Skystars Koko 1404 3000Kv (2 Stck.)
Rotorama.de
See Site

FPV Transmitter

DJI O3 Lufteinheit, Kompatibilität: DJI Goggles 3, DJI FPV Remote Controller 3, DJI Goggles 2, DJI FPV Goggles V2 und DJI FPV R
Amazon.de
See Site

Receiver

SuperD ELRS Diversity Receiver (19 builds)
Betafpv.com
$19.99

Radio

Jumper T Pro OpenTX Hall Sensor Gimbal Remote Controller with JP4IN1 Multi-Protocol Module Radio (3 builds)
Amazon.ca
See Site

Goggles

DJI FPV Goggles V2 Videobrille HD kaufen | FPV24.com (243 builds)
Fpv24.com
See Site

Video Receiver

TBS Fusion Diversity Receiver System - FPV Empfänger Fatshark Dominator kaufen | FPV24.com
Fpv24.com
See Site

Radio Module

Jumper 2.4G ELRS AION Nano
Rotorama.de
See Site

Soldering Iron

HGLRC RC2 Soldering Iron (2 builds)
Hglrc.com
$46.99

Backpack

HGLRC Backpack (3 builds)
Hglrc.com
$189.99

Misc Supplies

Zehhe Copper Foil Tape with Double-Sided Conductive - EMI Shielding,Stained Glass,Soldering,Electrical Repairs,Paper Circuits,Gr (2 builds)
Amazon.com
$4.98

Misc Supplies

Jhemcu jhe42b/jhe20b finder mini 5v super lauter anti lost summer tracker 110db w/led summer beeper alarm für rc fpv drohne
De.aliexpress.com
$3.04

Misc Supplies

3mm Bis 80mm Gewebeschlauch Geflechtschlauch Gewebe Schläuche Kabelschutz PET
Ebay.com
See Site
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Discussion

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lewac   14 days ago  
1

I really like these models, they look great. Have you tried flying them anywhere? Stickman Hook

StuPa   14 days ago 

Yesterday I flew with 4 batteries (4s 18650). Due to the greater distance between the engines, it flies more stable and much quieter in windy conditions. She is also very quiet. Because of the 3000kv it is no longer as agile as my other one with 3800kv. You have to fly with some foresight, so it's partially suitable for freestyle (then higher KV is better). But it was enough to escape a buzzard, which flew towards me with its claws outstretched.

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