Oky ... for 4035-250 on 8S you would need 21x14 on 100A to have a similar performance as with 10S and 18x10 on 65A. If you really want 8S then 4035-330 on 17x10 would give you good performance but still &gt;85A. Power needed is always the same and power is always W = V x A where it is always better to have more V and less A for better efficiency.</p>


</p>

gaRCfield ... I really tried hard to find an online calculator where I can compare Neu 19xx with very similar outrunner and I managed!</p>

On this link http://brantuas.com/ezcalc/dma1.asp there is an online calculator and I compared the following:</p>

Neu 1905/2.5Y - 850 on APC 14x7 with NeuEnergy 4S 3200 and CC85 HV ESC against</p>

Scorpion S3026-12 and other same as the above.</p>

The result is (almost) identical rpm on identical Amps. These kind of calculators are not very good at giving real life numbers but are very good at comparing things. I don't know how and if the calculator is taking into account physical differences that are obvious between inrunners and outrunners, but from this it appears they behave the same.</p>

Also here http://www.gobrushless.com/kb/index....01_-_Chapter_1 there is a very, very detailed (and long) explanation about brushless motors in general and many other things regarding the subject.</p>

I really do not understand why more producers do not publish real life numbers with many different props as Scorpion does for all of their new motors? Are they hiding something? I really do believe that Neu motors would be selling great not just in the USA if this data would be available.</p>

MERRY CHRISTMAS EVERYONE.</p>

Velco</p>