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Old 06-16-2012, 02:11 AM   #1
mmarian
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Default 452 suitable or not ??

I was given a set of three Futaba 452 servos. According to specs they have more torque but they are 40% slower than 451. Will they be ok as cyclic servos??
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Old 06-16-2012, 02:19 AM   #2
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I'd say yes, in some ways torque more important than speed in FBL but even so I'd use at 6v - some of the Futaba car servos have short leads so you may have to put in an xtension.
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Old 06-16-2012, 02:47 AM   #3
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Yeh fine craig runs them
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Old 06-16-2012, 02:47 AM   #4
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Originally Posted by Mercuriell View Post
I'd say yes, in some ways torque more important than speed in FBL but even so I'd use at 6v - some of the Futaba car servos have short leads so you may have to put in an xtension.
I have Jive 80HV and its BEC by default gives 5.5V if I am not mistaken. That would slow them down even more I guess ??? Length of the leads is just fine, BTW. How important is speed for cyclic servos anyway ??
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Old 06-16-2012, 03:38 AM   #5
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You can crank up the BEC voltage to 6V with Progcard 2 - speed is a bit of a bulldust measurement in many ways as it isn't done under load and doesn't state whether it's transit speed or off-the-blocks no to go. Precision and repeatability of position are more important also and power for the greater cyclic loads without a flybar power input. I think you'd have to be a very precise power flyer to notice the difference say between 0.12 and 0.2 secs.
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Old 06-16-2012, 04:26 AM   #6
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I would use the 452's without worries, thinking that holding power trumps the minute 0,05 sec. speed difference, any day.

I have 253's in TDR, and 252's in Diabolo. 253's run at 5,6v, the 252's at 5,8v.
Can't feel any difference in cyclic performance whatsoever...

(451 vs 452 being comparable with 253 vs 252, spec wise, is what I base my conclusion on.)
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Old 06-16-2012, 09:03 AM   #7
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I saw a Banshee video with 452s.
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Old 06-16-2012, 11:03 AM   #8
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Quote:
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I saw a Banshee video with 452s.
Yep, it is also on the list of recommended servos by Banshee.
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Old 06-17-2012, 07:55 AM   #9
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I am too a believer in stronger servos vs faster. (For the swash plate)
If I have the choice I'd go always for the ones with more torque. That gives mostly more speed in direction change than the faster servo, which slows down substantially then.
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Old 06-17-2012, 06:24 PM   #10
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What speed servos did we run on the 450s back in the day?
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Old 06-19-2012, 01:14 AM   #11
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I wouldn't be surprised if the two servos were very close to the same speed under load, since the faster one is closer to stall torque it will be slower compared to its maximum.
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