Updated: Flugturm S2

By MamaJOE on Aug 08, 2021

9  269  5

That's the elovution of my "Flugturm" project. The first version was a bit underpowered and the frame was to weak. Therefore I changed the frame an the motors to tackle these points. The aim of this build is the same: put all the technical features of a 5 inch quad into Toothpick size, which are BLHeli 32, F7 FC with blackbox logging and twin gyro, digital video, LEDs and an extra loud beeper.

The frame is the version with 3 mm baseplate.

This thing is pretty heavy for a toothpick, but it flies great and it's power is on a par with my 4S 5-inch copter.
The feeling is very similar to a 4s 5-inch, but it's more light-footed and agile.
Till now, it took a lot of crashes without any damage ;)
The flight time is somwhere between 3 and 6 1/2 minutes, with 450 mAh Lipo and ESC running on 48 kHz.
I think the Lipo is the bottleneck in the powertrain, so I'll try the Tattu R-Line 650 mAh Lipo (higher discharge-rate) as soon as it's available in stock.

Update I:
I changed the DJI Cam to a Caddx Polar Starlight and it's really an upgrade - great cam!

Update II:
Yes, my assumption above was correct. The 450 mAh battery was the bottleneck.
With the 650 R-Line it's a complete new feeling! Very little voltage sag, much more power, which compensates the additional weight by far and extended airtime.
I think if I really aim for it, I will reach the 10 minutes flight time...
In combination with the Caddx Polar cam it's almost perfect for me:
Fast, agile, low noise profile, small and lightweight in the backpack, "cheap" batterys, long flight time and flyable far beyond dusk.

Before it was just a project, now it's love :)
Really, I like this build and I'm starting to ask myself why to buy these expensive batterys for a 5", having more weight in my backpack without any reasonable benefits?
Any suggestions?

Weight with props: 130 g
AUW with 4S 450 mAh: 181 g
AUW with 4S 650 mAh: 206 g
Flight time (450 mAh): approx. 3:00 to 6:30
Flight time (650 mAh): >4:00 to 9:00

Photos

Part List

Frame

X-Knight Canopy (2 builds)
Betafpv.com
$6.99

Frame

FC Plate 30x30 (2 builds)
De.amaxshop.com
$5.26

Frame

HGLRC Petrel 120X 3 Inches Toothpick FPV Frame Kit (2 builds)
Hglrc.com
$17.99

Flight Controller

iFlight Succex-D Mini F7 TwinG 20x20 Flight Controller for DJI (8 builds)
Racedayquads.com
$43.99

ESCs

SucceX Mini 45A 2-6S BLHeli_32 Dshot600 4-in-1 ESC (2 builds)
Shop.iflight-rc.com
$85.99

Motors

4 x iFlight Xing2 1404 4600Kv Micro Motor (5 builds)
Racedayquads.com
$59.96

Propellers

GEMFAN 3016-3 PROPS - (2CW + 2CCW) (55 builds)
Pyrodrone.com
$2.59

FPV Camera

Caddx Polar Micro Digital FPV Vista Camera Kit - Silver (9 builds)
Pyrodrone.com
$159.00

Antenna

MiniMortal T V2 for Crossfire - manufactured by TBS (24 builds)
Fpvcycle.com
$3.99

Antenna

Momoda 5.8G Antenna - GEPRC (2 builds)
Geprc.com
$14.99

Receiver

TBS Crossfire Nano Rx (1145 builds)
Getfpv.com
$29.95

Batteries

Tattu 4s 450mAh 75C Lipo Long XT30 Whoops (3 builds)
N-factory.de
$17.58

Radio

Gaoneng GNB 7,4 V 3000 mAh 5C 2S Lipo Batterie XT30 Stecker für Jumper T16/T18 RADIOMASTER TX16S Sender
De.banggood.com
$27.99

Radio

RadioMaster TX16S Multi-Protocol RF Module OpenTX 2.4GHz RC Transmitter w/ Hall Gimbals (69 builds)
Racedayquads.com
$199.99

Goggles

URUAV V2 3 in 1 Dust-proof Shading Sheet Protective Lens Cover for DJI Digital FPV Googles
Uruav.com
$7.55

Goggles

DJI Digital HD FPV Goggles (101 builds)
Getfpv.com
$529.00

Goggles

iFlight Crystal HD Patch 5.8GHz RP-SMA Antenna for DJI - LHCP - Choose Your Design (2 builds)
Racedayquads.com
$44.99

Goggles

2 x Double Quad RX Black Edition LHCP RP-SMA male speziell fr DJI HD FPV System (2 builds)
Antennenfreund.de
$58.60

Goggles

Replacement DJI FPV Goggles Sponge Foam Padding
Shop.iflight-rc.com
$11.99

Goggles

Ersatz Akku Li-Ion 4,4Ah (4 * 18650 Akku) + Tasche für Magicshine.eu - bikelight.eu - LED-Fire.com und andere LED-Lampen mit 7,
Amazon.de
$12.42

Misc Parts

110DB Super Loud Buzzer 5V W/ LED Light BZ110DB / WS2812 (2 builds)
Customquads.com.au
$6.50

Misc Parts

Battery Anti-Slip Silicone 3M Pad 64x33x3mm (4 pcs) (2 builds)
De.amaxshop.com
$5.03

Misc Parts

Plasti Dip Liquid Electrical Tape schwarz 118ml 4oz black (3 builds)
Plastidip-sale.com
$13.95

Radio Module

TBS Crossfire Micro TX V2 (35 builds)
Getfpv.com
$69.99

Battery Charger

2 x Power Genius SAFE Parallel board XT30 and XT60 2S to 6S with Fuse Protection (3 builds)
Pyrodrone.com
$19.98

Battery Charger

2 x BAT-Safe LiPo Tresor sicheres Laden und Aufbewahren der Akkus
Amazon.de
$152.20

Battery Charger

2 x Amacoam 2 Stück Lipo Batterie Sicherer Beutel Feuerfeste Explosionsschutz Lipo Battery Guard Tasche Sack Gebühren Schutz Tasch
Amazon.de
$53.92

Battery Charger

ISDT D2 200W 24A AC Dual Channel Output Smart Battery Balance Charger (17 builds)
Banggood.com
$139.00

Soldering Iron

Tilswall Lötstation 65W Lötkolben Set 200°-480°, mit 5 Ersatzspitzen und Lötzinn, einstellbarer Temperatur, eingebaute Tran (2 builds)
Amazon.de
$50.40

Backpack

Skyreat Hard Carrying Case for DJI FPV V2 Goggles
Getfpv.com
$19.99

Backpack

Tarion Pro PB-01 Professional Camera Backpack
Tarion.eu
$164.99

Accessories

Kesser® Campingstuhl faltbar klappbar tragbar Angel Stuhl Camping Stuhl Faltstuhl bis 120 kg Strandstuhl Angelstuhl Klapphocker
Amazon.de
$38.46
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Discussion

Sign in to comment

MamaJOE   5 days ago  

Yeah, after waiting a long time, today my two Tattu R-Line 4S 650 mAh batteries arrived from Bangood.
For the promised update see the description of the Built.

Th3Riddl3r   Aug 12, 2021  

Sehr schöner Build. Ist die Haube gedruckt, oder ist das eine fertige? Habe die Specs nicht genau durchgelesen. Gruß

MamaJOE   Aug 12, 2021 
1

Danke! Das ist das Betaflight X-Knight Canopy, kein 3D-Druckteil ;)

OptimaZe   Aug 08, 2021  
1

Nice! I really like the looks of this build.

MamaJOE   Aug 08, 2021 
2

Thanks! Although focus was more on the performance than the aesthetics ;)

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