RunRyder RC
WATCH
 1 page 601 views Post Reply
Home✈️Aircraft🚁HelicopterThunder TigerOther › 9351 or 9451 for Raptor 90SE
09-09-2006 12:56 PM  14 years ago
Topic Vote0Post 1
SPB

rrElite Veteran

Athens - Greece

MyPosts All Forum Topic
9351 or 9451 for Raptor 90SE
Which servo do you think will be the better choice for a Raptor 90SE?

Maybe soon these servos will be transfered to an Aurora so the decision should also be made taking into consideration this fact.

Thanks.

Sotiris
myhelis.com Flying Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-09-2006 01:23 PM  14 years ago
HUTCH964

rrKey Veteran

Taylor,Texas 76574 local airport T74

MyPosts All Forum Topic
I would not move any servo from a standard mix machine to a ccpm machine because of the uneven wear on the servos in the standard mix.

I have seen too many problem with that and would advise you just get 9252's for the R90SE and when you get the other machine get the servos you want then so your ccpm will be wear the 3 servos in evenly..

Just my 2cents.. & Hey you will have 2 flying birds then!


*****
Tim
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-09-2006 02:18 PM  14 years ago
SPB

rrElite Veteran

Athens - Greece

MyPosts All Forum Topic
Thanks Tim but they will be 3 then (I also have my trusty 50)
Sotiris
myhelis.com Flying Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-09-2006 02:36 PM  14 years ago
HUTCH964

rrKey Veteran

Taylor,Texas 76574 local airport T74

MyPosts All Forum Topic
3 well that is against the law in most country’s

Good luck and have FUN!


*****
Tim
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-09-2006 02:38 PM  14 years ago
SPB

rrElite Veteran

Athens - Greece

MyPosts All Forum Topic
thanks buddy. I am an outlaw

BTW I ordered 3 x 9451. I already have 9252s which are now on my 50 replacing the (slow) JR 8301.

I think 9kgs of torque and 0.10sec speed will make my 90 a little more allive

Sotiris
myhelis.com Flying Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-09-2006 05:09 PM  14 years ago
firefox

rrApprentice

Thailand

MyPosts All Forum Topic
I'm pretty interested in the argument of "metal vs non-metal" gears. From what I can tell, if you go beyond the S9252 in torque for Futaba digital servos, you have only servos with metal gears.

Now, I've heard people say that metal gears have two big issues, one is RF interference, and another is developing slop over time. Thing is, I really can't see how these things can be issues.

For interference, these are servos designed for RC use, so if they *did* generate interference, wouldn't there be planes and helis falling out of the sky everywhere? I mean, about half of the standard size and nearly all of the large size servos use metal gears. As for slop, isn't metal (brass?) stronger than the plastic (nylon?) used in other servos? If it's more prone to deforming at similar loads (since the argument is whether or not to use metal gears in an application), wouldn't the plastic gears be stripped in the same situation?

Can someone shed some light on this? Perhaps some actual first-hand experience of these two things happening?
SHARE  PM  EMAIL  Attn:RR  Quote
09-09-2006 06:34 PM  14 years ago
Raffy

rrElite Veteran

Chicago, Illinois

MyPosts All Forum Topic
I'm pretty interested in the argument of "metal vs non-metal" gears
IMO any type of servos that's been into a crash and not sent out for service will bring up more questions and issues.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-10-2006 03:24 AM  14 years ago
SPB

rrElite Veteran

Athens - Greece

MyPosts All Forum Topic
Yes there is that argument but I can tell you for sure that I used to have a JR 8511 servo in the pitch witch is metal gear.

Never had an RF interference and the servo even if it worked on the heli for only 7 months (maybe less) never show any sign of slop.

Both 9351 and 9451 are working very well on helis. Also the high end Airtronics servos that are very popular in helis because of their speed and torque are metal gears and as you said all the latest high end high torque/speed servos are metal gears so I am not looking that issue any more.

I used to have 9252s in my 90 and yes they are work fine but I need something stronger and faster. I don't know how much torque the nylon gears can handle without stripping so metal gears are one way IMO for high end servos.

Finally a servo that for sure do not want any slop is the tail servo. Futaba's 9256 is metal gear as well. So I think R&D department of Futaba should know something more than us

Sotiris
myhelis.com Flying Team
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 601 views Post Reply
Home✈️Aircraft🚁HelicopterThunder TigerOther › 9351 or 9451 for Raptor 90SE
Print TOPIC

 3  Topic Subscribe

Saturday, November 28 - 11:09 pm - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online