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HelicopterBeginners Corner › JR nes-537's servos
03-07-2006 05:52 AM  11 years agoPost 1
RC NEW KID

rrNovice

Atlanta, GA

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I have a Raptor 50 v2, OS 50. I am currently flying with NES-537 JR servos. Are these servos up to it,,or should I different servos? The servos came in the bird as a package deal. 9254 is on the tail.

Raptor 50 v2, OS 50, MX-400, Blade CP,,,Futaba 9chp, GV-1 gov., OS Hyper 50, JK SB-50 pipe, 9451

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03-07-2006 06:22 AM  11 years agoPost 2
3d type

rrVeteran

Bridgeport,CT USA

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there ok for hovering, not for hard 3d though.specially on a 50.

how'd the ground come up like that ?

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03-07-2006 08:10 AM  11 years agoPost 3
RC NEW KID

rrNovice

Atlanta, GA

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what about loops,rolls, and figure 8's?

Raptor 50 v2, OS 50, MX-400, Blade CP,,,Futaba 9chp, GV-1 gov., OS Hyper 50, JK SB-50 pipe, 9451

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03-07-2006 10:30 AM  11 years agoPost 4
colsy

rrElite Veteran

Cambridge, UK

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what about loops,rolls, and figure 8's?
I flew my 50, with 591,s, and it performed 8's and stall turns fine, not sure what the difference is between 591 and 537,s.
Col.......

Only Quote From Experience.

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03-07-2006 11:40 AM  11 years agoPost 5
nivlek

rrProfessor

Norfolk England

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The 537's have 3.1Kg / cm torque , while the 591's have 5.1Kg / cm torque . I would swap the 537 on pitch (collective)for a 591 (as a minimum) , then you should be OK .

At the end of the day , it gets dark .

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03-07-2006 06:46 PM  11 years agoPost 6
SDavied

rrApprentice

Ellis, Ks

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If you want to do 3D, you'll definately get to the point where you want strong, fast servos. I thought I could get along with JR DS811's on the cyclics of my R50. I was wrong. After a few flights, I changed to Futaba 9252's. Huge difference.

<witty signature line>

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03-08-2006 12:03 AM  11 years agoPost 7
Yug

rrMaster

UK. Herts

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I've recently been flying my old R50 with DS811s and was pleasantly supprised with performance much greater than I was expecting after my other rocket ships. OK, it wouldn't rainbow to the ground and stop dead, but it was more than capable of handling piro tictocs, snakes, chaos etc. Just need to be a little more predictive on the timing. Also want too add that the throttle servo was a 3001 Its a bit bog city but does cut the mustard if you treat collective with a bit of respect. So, I would say that unless you intend to try and rip the blades off, a 591 will be fine.. A 537 - No
One of the biggest problems with cheaper servos is they tend not to be double raced which leads to quite alot of play - which ultimately can lead to woof and poos unless checked. The 9252s etc are tremendous servos because of their reliability, positioning, and are double raced with moderate torque and speed. etc etc

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03-08-2006 12:23 AM  11 years agoPost 8
allns47

rrKey Veteran

Richmond IN.

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537"s will work in a 30, put a 50 is a no no..The torque on a 537 is on the edge of being to low even on a 30...

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03-08-2006 01:06 AM  11 years agoPost 9
RC NEW KID

rrNovice

Atlanta, GA

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ok, thanks guys,,so will i be ok if i put 9252's on aileron,elevator,collective,and leave one jr 537 on the throttle?

Raptor 50 v2, OS 50, MX-400, Blade CP,,,Futaba 9chp, GV-1 gov., OS Hyper 50, JK SB-50 pipe, 9451

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03-08-2006 01:26 AM  11 years agoPost 10
Yug

rrMaster

UK. Herts

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The 537 is speced at 3.1kg/0.25s. The 9252 are 0.14. Now then, it is usual practice for the throttle servo to be faster than the collective so as to maintain a constant head speed. In practice, the collective servo speed will be reduced due to the loading on it. A throttle servo has very little loading as it is only rotating a barrel, so its performance will usually be close to the specs. Now, because of the low loading, you can increase the 'speed' by using a longer horn and reduce the ATVs. The only 2 problems here are if you are using a governor (usually require 100% ATVs) and how much slop the servo has in centering. If there's too much slop, then it will be hard to establish a stable idle.
If your throttle ball is say 13mm, then the servo ball on your 537 needs to be about 23mm in order that the throttle tracks the collective.
Give it a go

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03-08-2006 02:50 AM  11 years agoPost 11
RC NEW KID

rrNovice

Atlanta, GA

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lol ok,, so 9252's all around. Because i will be wanting to get a Rev Max in the future.

Raptor 50 v2, OS 50, MX-400, Blade CP,,,Futaba 9chp, GV-1 gov., OS Hyper 50, JK SB-50 pipe, 9451

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HelicopterBeginners Corner › JR nes-537's servos
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