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Archive for February, 2017
Posted by montis | Feb 18, 2017 @ 06:06 PM | 15,066 Views
A new super micro size brushless motor is comming - Racerstar BR0703 8000KV, 10000KV, 12000KV, 15000KV:
http://www.banggood.com/Racerstar-Racing-Edition-0703-BR0703-10000KV-1-2S-Brushless-Motor-For-6080100mm-FPV-Racer-1_9g-p-1129234.html

Available versions: 8000KV, 10000KV, 12000KV, 15000KV.

The first picture of this motor:



These are the preliminary specifications:




Discussion thread here: https://www.rcgroups.com/forums/show...rushless-Motor
Posted by montis | Feb 18, 2017 @ 05:27 PM | 14,578 Views
I have tested the flight duration of Eachine E010 (https://goo.gl/4ppNqN) with standart 4 blade propeller and custom cut to 2 blade propeller.
Battery used - standart Eachine 30C 150mAh

Eachine E010 - 4 and 2 blade propeller flight duration test (3 min 1 sec)


Test results:
Cutting off 2 blades of standart 4 blade propeller increases efficiency and flight duration up to +25%. You may lose some of the agility but will greatly increase flight times.

Flight duration:
4 blade propellers: 4:46
2 blade propellers: 5:58

Low voltage warning:
4 blade propellers: 2:38
2 blade propellers: 4:56
Posted by montis | Feb 04, 2017 @ 11:04 AM | 15,146 Views
I have tested Racerstar BR2205S 2300KV motor on the thrust stand.
Racerstar BR2205S 2300KV motor thrust test (1 min 44 sec)


Tested with:
Batteries: 3S and 4S, 3500mAh
ESC: Hobbywing XRotor 40A OPTO (https://goo.gl/iSz5lc)

Tested props:
DALPROP 5045 2-blade (https://goo.gl/89ue4B)
DALPROP T5040 V2 3-blade (https://goo.gl/5SC89j)
DALPROP T5046 3-blade (https://goo.gl/5tI7SQ)
DALPROP Q5040 4-blade (https://goo.gl/OqPtbY)
KingKong 6040 2-blade

Thrust test results datasheet:
https://docs.google.com/spreadsheets...34&single=true

This motor was providedx for review by Banggood. Motor can be purchased here: https://goo.gl/ez33la