JR FBL DS21 (now DS396) servo - alternatives

[Apache]

Has anyone found a suitable alternative to the JR DS396 servo, used on the FORZA 450 cyclic? Grateful for any information leading to the capture of such servos! Thank you.

[Crashalotjoe]

I'm quite interested in this too as I have a dead Forza 450 skulking around in the loft with a set of duff cyclics. I've set aside a set of Align 415's as I happen to have them in stock but have yet to see if they will fit.

Searching the interwebs; people are suggesting that most micro servos fit. If so, I would go for the KST 215's or the Turnigy 306 (same servo) just for the price/performance ratio.

When I get a chance, I'll check what fits and what doesn't.

[Apache]

Thanks Joe. That is interesting because, so far, I haven't found a single 'other make' servo, micro or sub-micro, that matches the dimensions of the Forza unit. I'm still on the case and will try and keep updating this thread. Anyone else with a festering Forza, looking for servos??

[Grumpy]

There are pics of the Forza with KST 215s fitted over on Helifreak, looks like they fit fine: https://www.helifreak.com/showthread.php?p=6154637

[Apache]

Thanks Grumpy. I'll check them out. I've been working on stated dimensions and suspect that length x width x height are expressed differently by some manufacturers!

[Crashalotjoe]

The sizes quoted for the DS21/DS396 appear to be either incorrect or measured in a different way to everyone elses servos. In fact the dead DS21's I have fitted on mine are standard micro servo sizes and therefore any standard micro servo should fit as long as it has a central mounting hole in each flange (most do).

So, back to the original question; I will fit my crappy Align DS415's as I have them hanging around and don't intend keeping the heli but otherwise I would probably fit KST215's or the Turnigy 306's as they are cheap and perform well.

[Apache]

Interesting variations in description - JR calls theirs "Sub Micro", everyone else -"Micro". As for dimensions - we appear to have different conventions. It really is not helpful, is it?