[NSRCA-discussion] Braking question

Jas justanotherflyr at gmail.com
Tue Mar 1 10:35:15 AKST 2016


Only thing is the OS/Futaba esc's don't like 28-pole motors. Not sure why.

Sent from my iP

> On Mar 1, 2016, at 1:35 PM, David Harmon via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:
> 
> Hi John….could be but the OS 1100HV and Futaba MC 9100A work great without screeching or any other operational problems.
> The brake is very effective and I have had the brake setting adjusted between 50 and 90 on various 2 and 3 blade props as large as a Mejzlik 22 x 12 2 blade and Mejzlik and Falcon 3 blades.
> The hand held ‘loader’ is small enough to put into the transmitter case and you can make quick changes at the field between flights without a computer or other hardware.
> Both ESC are clones to each other…they look exactly alike except for the mfgrs sticker.
> The loader is also clone across both mfgrs and operationally are exactly alike….in fact I have only one loader and use it on both ESC.
> All available at RC Japan….tower does not have them anymore because they said sales was too slow…arrgh
> I am using the Plettenberg Advance motors at 15 degrees timing.
>  
>  
> 73
>  
> David Harmon
> K6XYZ
> Sperry, OK
>  
> From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Pavlick via NSRCA-discussion
> Sent: Tuesday, March 1, 2016 12:19 PM
> To: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
> Subject: Re: [NSRCA-discussion] Braking question
>  
> The reason this is so touchy BTW is because you guys are using sensor-less brushless motors. Commutation takes place in the speed control. This works fairly well when the speed controller is driving the motor. When it’s the other way around however – not so much. I bet if someone came out with a motor that had position sensors and a really expensive speed controller to drive it, more people would get  interested in Pattern again… LOL
>  
> John Pavlick
> Cell: 203-417-4971
>  
> <image001.png>
> Integrated Development Services
>  
> From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of David Harmon via NSRCA-discussion
> Sent: Tuesday, March 01, 2016 10:28 AM
> To: 'Jon Lowe'; 'General pattern discussion'; 'Jamie'
> Subject: Re: [NSRCA-discussion] Braking question
>  
> This is exactly my experience as well.
>  
> David Harmon
> Sperry, OK
>  
> From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Jon Lowe via NSRCA-discussion
> Sent: Tuesday, March 1, 2016 7:48 AM
> To: Jamie <jstrong49923 at gmail.com>; NSRCA <nsrca-discussion at lists.nsrca.org>
> Subject: Re: [NSRCA-discussion] Braking question
>  
> ESC dependent. Castle ESC braking doesn't work well over 30% in my experience, without screeching. I set my OS controller at 65%, and it works fine. Jason goes as high as 90% with an OS. Some other controllers don't work well with braking at all, such as the YEP controllers from HobbyKing.
> 
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