Quark 125b thermaling

[Batfish]

I read your posts and the replies at the other forum, then put up my own. "tripthreat" appears to be "Frank", an employee of Quark. I was personally disappointed to read this part of one of his replies, so I countered with my real-life experience.


Quote:
Originally Posted by tripthreat
I would love to be able to run a 15 minute main, but right now, there are no controllers that will allow you to do this competitively against Nitro Cars. That is not pesimistic, nor defeatist, it is the truth. If it was defeatist, I would not be looking forward to when it will be possible, and our company would never strive to make a better controller, but such projects and aspirations are in stages of development.


I'd just like to add here that the first statement in this comment is incorrect. I run a Lehner 1940 motor on a BK 9920 controller with 4s2p 6400mah in a converted OFNA MBX 1/8th scale buggy, geared 14/51, and I can run for over 25 minutes without either motor or controller going over 120F in ambient temperatures of 95F.
The big difference is the motor. The Lehner 1940 is considerably more efficient than the Feigao or BK "L" or "XL" cans. Of course, there is a $200 difference in the price, but that makes all the difference in the performance.
If I used an L or XL can in my buggy, both the motor and controller would overheat inside of 7 minutes.
I'd be pretty confident that the Quark could do the same with a higher-quality motor attached to it.

Joe