JR DS 821 on my EP550?

[Cralis]

Hello guys,

I've been offered some JR DS 821 for my EP550, to replace the Maxwell ones that came with the package. Are these suitable servos? I don't fly 3D.. just nice scale type flight with my attempts at stall turns... and one day, I will attempt a loop..

Are these suitable, and do they fit like a glove? And would they make a difference to the feel of my heli? I hear better (then the Maxwell ones) make you feel more attached...

[cbcelectech]

looks pretty popular to me

[kahn10]

cralis go up to the search this forum tab on the right hand side punch in 821 and tada........(ok thats supposed to be some kind of mystical sound) everything anyones got to say about 821's and hurri's......:smokin:

[Cralis]

I did... :)
One guy moaning about his breaking on a .50 nitro.... :arggg:

But general seems they're quite popular on the EP550... So looks like they're good for me.

[mysticmead]

they work great on the hurri...

[Mikej]

I use them on my latest - even Finless used them :wow2:

[Cralis]

Thanks guys!
Sorted.. I should be rid of the Maxwells, and up and flying on the JRs soon then. Thanks guys!

[bjosko]

I did exatly that switch, and are very happy with it.

The DS821 also fit much better in the geometry to the links, and are more precise.
Mine came from my DX7-kit.

And no, they are not strong enough to fit in a nitro, but I think I read somewhere that the problem was that the screw that hold the servoarm are to short for a nitro, it will came loose do to vibrations. I think ReadyHeli sells a longer replacement bolt for that use.

[Pinecone]

I use them and am happy with them.

[michael88997]

i fly 3d with mine and they are fine... i just upped my cycle numbers and have the 600 flybar with green paddles at 2500 rpm to get a faster roll and flip :)