Servo for rudders

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22 July 2014 at 10:05 #4126
CookieOld
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@cookieold
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22 July 2014 at 10:05 #50572
CookieOld
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@cookieold
Hi All , I would like some advise on a servo with enough power to operate 3 large rudders on my 49 inch Perkasa . The one i was thinking of buying is a New Power XLD-38HMB BB DIGITAL do you think this would be up to the job and if not what would be best.

Cookie
22 July 2014 at 11:16 #50574
Dave Milbourn
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@davemilbourn48782
Cookie
Best advised to avoid digital servos if you can, for a number of reasons. I'd suggest this one – it's inexpensive and the torque should be far more than you need for three rudders **LINK**

Dave M
22 July 2014 at 11:25 #50575
CookieOld
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@cookieold
Thanks Dave, A number of people have said avoid digital servos why is that Dave

Cookie
22 July 2014 at 14:01 #50577
Dave Milbourn
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@davemilbourn48782
They draw a lot of current and can cause problems with other items connected to the receiver e.g. speed controllers. You don't really need their high speed or power for a normal model boat.

DM
22 July 2014 at 14:28 #50578
Tony Hadley
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@tonyhadley
What applications would digital servos be used for?

Tony
22 July 2014 at 14:51 #50579
Dave Milbourn
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@davemilbourn48782
Generally they are used in what are called '3D' aerobatic helicopters, other large aerobatic model aircraft, and perhaps such exotica as I/C offshore powerboats and fast electrics. They would deliver no significant advantage in a Perkasa – even a big 'un. I have none in my servo stock and I'm not planning to change that.
DM
22 July 2014 at 21:55 #50584
Mark Jarvis 2
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@markjarvis2
HI Cookie

Have you considered two standard servos on a Y lead, more than enough power and torque, with the added bonus of it being relatively a cheap option

Mark
23 July 2014 at 08:37 #50588
Dave Milbourn
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@davemilbourn48782
Mark
Not necessarily. Connecting three rudders to two servos mechanically would be a bit of a challenge, and two standard servos plus a Y-lead from Component Shop is £6 more expensive than one high-torque servo.
Dave M
23 July 2014 at 08:43 #50589
Bob Abell 2
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@bobabell2
Hello Mike Jarvis

I notice that you are an Etherow member

We can't put a face to your name…..Will you please send a photo to Peter Teal for entry into the gallery, or announce yourself, next time you see us, so we can have a chat?

Many thanks

Bob Abell
23 July 2014 at 11:07 #50593
CookieOld
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@cookieold
Hi Bob Abell , Will Brutus be on the Etherow stand at Haydock , I would really like to see her in the flesh having read the thread on her build.

Dave ( cookie )
23 July 2014 at 11:55 #50595
Bob Abell 2
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@bobabell2
Hello Dave and others

Hopefully, Brutus, SloMo and Ellie will be on Paul Thomason's stand

Along with Ellie fishing boat and Ellie Torpedo boat and Thor!

Doesn't that sound really exciting?

Subject to Paul being well enough to attend….At the moment, the summer heat has got him down

All the best Paul

Will stand visitors to the stand, from this forum, please make their presence known, so we can put a face to your postings?

Bob
23 July 2014 at 19:27 #50607
CookieOld
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@cookieold
Hi Bob , That would be great not only to see Brutus but to meet Paul and yourself to say thanks for all the help you both have given me with my build ( Paul hope you feel up to it )

The very best regards Dave ( sorry cookie )
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