Tags: 11, 4.7prop, D4023-850, DT850, Motor, Out, Power, Runner, Test, X, More…with
Hey man ... this is a good motor as the DT750 but it use very small bearings.
i used DT750 in my OCTO 2 years ago.
All bearings presented problem after few month´s.
I have a tricopter with 700's nice robust motor as I have crashed my set on two frames and they are still going strong Electrically they are quite good also
I had two dt750s die bearing related deaths within about 10 hours of non-crash use. Haven't used any since.
Good to know Hobby King have introduced a DT900 & DT1000 now also, wonder if they have improved bearings I bent a shaft on one of my DT700's in a crash but the bearing survived.
with dt750 /3s for multirotors must to be lage props
13*4.5 -15*4.5 carbon props for long-time fly
hextronics dt 750ESC HK 30A ubec blue
gefman 12*4.53s bat100g 0,94a 8,64 g/w200g 1,76a 9,30 g/w300g 2,65a 9,43 g/w400g 4,15a 8.00 g/w
max thrust 1959g
Good to know 77 grams thrust per amp with your setup very efficientI am getting 70 grams per amp my best efficiency is 7.03 G/W on the DT 700 with the 11 X 4.7 propMy data has the DT850 better than the DT700 at 11 amps marginally but delivering 17% more thrustThanks for the data I shall read more tonight fromhttp://www.bungymania.com/imageshome/includes3/motorperf1.php?id=119
I am using the DT850 on a fixed wing plane and would need to move the motor to swing larger than an 11" prop
I May run a test on the DT850 on a 12 inch prop see what number I get and maybe move my FPV plane motor up higher
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