9254 @ 6v Yes/No?

[sacko]

Mine has been on over 6 months at regulated 6 months and no problems

[t-rex pedro]

As I said on the phone Aidi, I ditched the Align step down the day it fell apart and cost me hundreds in a crash. Never used one since on a 9254, 9256, BLS251, 9257, DS650......

Its not the servo failing/burning out that needs to be worried about here, its the crappy step down thats the weak link in the chain.

If people insist on using a stepdown then the CSM version is the way to go.

Hope this thread clears it up dude :-)

[Planehazza]

I think your going to get a nice mix of opinions here with no clear 'winner', as some people are prepared to take the risk of burning out the servo, and the other won't but may suffer a step down failure, both loosing tail authority.

Personally, i run with a step down

Matt

Personally, I wouldn't. It's only rated for 5.1 and it's pretty damn fast on that as it is. Is it really worth it?

[Mark_T]

I understand the issue with NiCad voltages etc, but it clearly states that the servo needs to run at 4.8v I am aware that it is possible to run at 6v of a regulator and lipo, but it needs to be stated by Futaba that this is fact.

I already quoted the part from the Futaba 401/9254 combo instructions where they say exactly that

I think the better question though is if the S9254 is still the best tail servo in its price range? ... and I think the answer is 'no', regardless of voltage there seems to be a trend of them eventually failing for no apparent reason in a few too many cases.

It could be down to the sheer numbers that were sold or it could be they are not quite up to the stress of tail duty, but right now it seems people favour the 650 so it makes it an easy choice if you are nervous about the voltage question.

[Aidi]

Mark,

I did read your comments, but this is what i read direct from the Futaba website:

SPECS: Speed: 0.06 sec/60° @ 4.8V
Torque: 47 oz-in @ 4.8V
Dimensions: 1.6 x 0.8 x 1.4" (40 x 20 x 37mm)
Weight: 1.7oz (49g)
Power Supply: 4.8V (Futaba does NOT recommend using 6V)


I used this as my reference, thats not to say the paperwork supplied with the servo is not different.

Rgds
Aidi

[0h5h1t]

Not again

You can run it at 6.0v fine as that is what it was designed for, what it was not designed for was running at higher voltage. Dates back to the use of 4 cell(6.0v) and 5 cell(7.5v) NiCd and NiMh Rx packs. The people insisting on using a step down are wrong

How many times does this need to be dragged back up for more misinformation to be propagated?

Stuart time for a Sticky I reckon

Quite right...... A regulated 6.0v supply is fine.

[Mojo]

I seem to know more people with failing 9254 than any other tail servo!.. One of the guys at my club bought 4 new ones and had 3 of them fail costing him a couple of helis (running at 4.8v).. Seems that there has been a bad batch or something a while ago..

However, i have one that still works perfectly (touch wood!).. A few people inject hot glue into the Align step down to prevent it from being affected by the vibration and breaking.. I got a couple of western robotics step downs and will also give them the hot glue treatment..

[Mark_T]

I did read your comments, but this is what i read direct from the Futaba website:

SPECS: Speed: 0.06 sec/60° @ 4.8V
Torque: 47 oz-in @ 4.8V
Dimensions: 1.6 x 0.8 x 1.4" (40 x 20 x 37mm)
Weight: 1.7oz (49g)
Power Supply: 4.8V (Futaba does NOT recommend using 6V)


I used this as my reference, thats not to say the paperwork supplied with the servo is not different.

The paper work supplied with the servo is not different, the paperwork supplied with the gyro/servo combo is different

Futaba don't see it as a 'difference' though as they are not saying anything different since 6V = 5 cell pack, not '6V'

Either way this is non-debate really since the DS650 seems to be rapidly replacing the S9254 so hopefully this 'debate; can die again once and for all.

[Aidi]

Well it has for me! 650 is on the way