[NSRCA-discussion] MG Servos to use

[rcmaster199 at aol.com]

What was your impression of the Extar? Please send me a PM





-----Original Message-----
From: Dave <DaveL322 at comcast.net>
To: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
Sent: Mon, Mar 29, 2010 11:00 am
Subject: Re: [NSRCA-discussion] MG Servos to use



Matt,
 
I put a little bit of flight time on an EF 78” Extra electric 2 weekends ago (It has 8711 HVs running on unregulated 5 cell Nimh – so figure 400 oz/in and 0.15 sec – definitely overkill).  My personal opinion is that 100 oz/in of digital torque is fine for elevator (2 servos), but more like 150 oz for ailerons (2 servos) and 200 oz for rudder, especially if you are going to have 3D throws.
 
Spektrum has some relatively new servos –
6010 is $40, metal gear, 100 oz/in, 0.14 sec
6030 is $85, titanium gear, 278, 0.15 sec
6040 is $80, titanium gear, 167, 0.08 sec
 
I used some of the 821 “standard” servos (composite gear, 88, 0.15) on the ailerons of my 120 mph Sundowner and they are solid (not fast, but solid).
 
I’ve been flying a 65” Vyper from 3DHobby, and the first few flights were with JR 8717 on the ailerons, and then some JR 8411sa’s, and now I have some Spektrum 6030s to try (next time the weather clears).  The 8717s draw a lot of current, but have absolutely stunning performance – very stable roll trim, smooth response for pattern stuff, and very positive/crisp for snaps and 3D work (and yes, pricey at $140, but I think an example of getting more performance for more $$$).
 
 Regards,
 
Dave Lockhart
Team Horizon/JR/Spektrum
 


From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of rcmaster199 at aol.com
Sent: Monday, March 29, 2010 10:20 AM
To: nsrca-discussion at lists.nsrca.org
Subject: [NSRCA-discussion] MG Servos to use

 


Hey folks,

 

I need some MG Digital Servos to use on the 78" Xtra. These need to have at least 100 in-ozs of torque and I prefer at least 0.15 sec transits. I've looked at Airtronics and JR.....For cored servos prices are not too bad but for coreless, prices are too high. I prefer coreless. 

 

Would someone with experience with the other brands shed some light on this? I'd like reasonably priced (50-70$ as opposed to 120$), metal geared servos with torque and speed shown above. I started to look at Hitec but I understand these need some kind of programmer!? The need is 4 at about 100 in-ozs and 1 at about 170 in-ozs

 

Thanks

 

Matt Kebabjian


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