Another 4inch all-rounder but with gopro onboard this time (naked gopro 7 black). It's only 255g and performs amazing.
Ways to lose more weight (for caddax vista xD or .... Remote ID):
GNB 650 4s (83g) = > Tattu 650 4S (70g) = 13g
Pololu 5V, D24V50F5 (4g) => iFlight Micro 2-8S BEC - 5V (0.8g) = 3g
Predator Mini V2 (13g) => Foxer Predator Nano (5g) = 8g
Immportal V2 (4g) => Mini Immortal = (1g) = 3g
Further research:
Try diffrent motors like: RCINPower GTS-V2 1506, TMotor F1507, Avenger 1507
Video: https://www.youtube.com/watch?v=m182M8NTN6A&feature=youtu.be
Frame |
Druckbรคr Ultralight 4 Race
(2 builds)
Druckbaer-racing-frames.de
|
See Site |
Flight Controller |
KISS CompactCTRL CC All-in-One (FC + 16A ESC x4)
Getfpv.com
|
$94.99 |
Motors |
4 x Tiger Motor F20II 1408 3750KV Brushless Motor
(16 builds)
Getfpv.com
|
$71.96 |
Propellers |
HQProp 4x4.3x3 V1S PC Tri-Blade Durable Propellers (2x CW + 2x CCW) - Light Orange
(3 builds)
Hobbyrc.co.uk
|
See Site |
FPV Camera |
Foxeer Predator V4 1.8 mm
(6 builds)
Fpvquads.com.au
|
$63.95 |
FPV Transmitter |
TBS Unify Pro32 Nano 5G8 V1.1 VTx Video Transmitter
(400 builds)
Pyrodrone.com
|
$29.95 |
Antenna |
Team BlackSheep TBS UNIFY PRO 5G8 Linear 5.8GHz Video TX/RX Antenna - Heli-Nation
(92 builds)
Heli-nation.com
|
$6.95 |
Receiver |
TBS Crossfire Nano Rx - FPV LONG RANGE DRONE RECEIVER
(1498 builds)
Team-blacksheep.com
|
$24.95 |
Misc Parts |
Pololu 5V, 5A Step-Down Voltage Regulator D24V50F5
Pololu.com
|
$14.95 |
All that hot glue is so nasty, but I love how it looks. Great work woth the gopro nudity, and the overall functionality of this build ๏
AirbladeUAV has done it again and this time they've brought long range to the 5" class! Based on the popular Transformer Mini, the new Transformer 5" Ultralight adopts a lot of the same design philosophies with larger props and more payload capacity. It can fly upwards of 20 minutes on a 4 cell Li-Ion battery pack and in ideal conditions it's got a range of over 4 to 5 miles. In this guide I'll walk..
Read moreWith the release of the DJI FPV Drone cinematic FPV has become a lot more accessible, but you certainly don't want to crash a $750 drone! The QAV-CINE Freybott is a compact, lightweight cinematic FPV drone that can take a hit and keep going. It's a lot safer to fly indoors and around people. With a naked GoPro or the SMO 4k you can capture some great stabilized footage. In this guide I'll show you..
Read more
The Tiger Motors are pretty heavy at 15g each! Odds are that the Tiger motors can easily pull more current than what that 4S battery can supply. (20A+ per motor)
Have a look at Xing as their motors are 6-7 grams each with an 8-12 amp max draw. Those should be good for 2.5 - 3" propellers.
1204-4500kv's https://www.iflight-rc.com/index.php?route=product/product&path=110&product_id=1094&limit=50
or
1105-4500kv's https://www.iflight-rc.com/index.php?route=product/product&path=110&product_id=998&limit=50
With 4" props look at these...
1404-4600kv's https://www.iflight-rc.com/index.php?route=product/product&path=110_245&product_id=895
thanks for suggestions ๐ what about battery for 1404/4600? (Currently I use [Gaoneng 650mAh 14.8V 80C 4S1P] 80g)
Three considerations here...
How you intend to fly
Full Acro or just make videos... Acro flight will require a higher C-Rating as well as 3 or 4 bladed props. (3" is likely best) Yet for video, use the largest 2-Bladed, low pitch prop you can fit on the frame for higher efficiency. This will allow you to run a lower C-rated LiPo, save weight and have much longer flight times.
Weight
Regardless of how you answer the first question, weight will always be your most signifigant issue. Too heavy, the copter will perform poorly, have short flight times, motors will run hotter and the copter will be less resiliant in a crash. Ideally, you should focus on gear thats AIO (All in one) to consolidate your hardware, eliminate wiring and save weight whereever possible. Keep in mind that the GoPro is great for a 5" or larger quad but is nothing but dead mass on anything smaller.
Batteries
Look for the smallest mAh battery with 45 + C-Rating. (450 mAh is the smallest 45C LiPo i have seen) Be aware that increasing either the C-Rating or the mAh makes the battery much heavier. You'll quickly reach a point of demishing returns as the LiPo's stats improve your copters flight performance will deminish.
Those 1404's are rated at 12 Amps each or 48 Amps for all four. Next consider that a batteries burst current is normally twice the listed C-Rating. Thus with a 45C battery you should be able to max out at 90A for 2-3 seconds without damaging the battery. Be aware that the battery will still sag at any point above 50% throttle. Thats just the LiPo's internal resistance changing due to heating. Having a higher C-rating will reduce that but not by a signifigant amount to justify more than a 45C LiPo. (added weight)
mAh
IMO a battery should be no more than 30-40% of the total mass of a copter if you want a reasonable TWR. Besides lower mAh LiPo's are really cheap and this allows you to carry more packs into the field. Now so long as your total fight time in aggressive Acro is around 4 minutes your golden.