Alternative choice of servos

[Crabby]

Hi guys,
So far the Hitec HS-55 has proven to be a reliable choice for most of our planes. I am wondering if there is another cheaper alternative to this servo replacement with the same reliability coz think few of my servos are wearing out. And where to get it? The price etc... thanks for the help...
Can post your reviews?

[Helicopter]

Comparison with replacement gear at LHS:

Hitec HS55 @$25+-
0.17sec/60° at 4.8Volt
1.1kg/cm at 4.8Volt
23 x 12 x 24mm
8.0g

Cheaper alternative and somehow known brand.
DYNAM 8.4g MICRO SERVO $19 @Skyhobbies
0.12sec/60° at 4.8Volt
1.5 kg/cm at 4.8Volt
24 x 11 x 24mm
8.4g

$11 --> Here
3x $39 --> Here
$10 --> Here
3x $31 --> Here

[Syphonics]

how is this dynam servo, can it be used for formosa?

[joed]

Why not try BlueBird Servos?
I think they are value for money. Been using them from plane to heli & almost everything. So far so good & their colour look cool also

[SKYHOBBIES]

how is this dynam servo, can it be used for formosa?

Hi,

The Dynam servos is being installed all round inside our Katana Mini already... and they have no problems at all... except rudder which have gears stripped due to hard landings (which was replaced instantly)

All in all this Dynam servos are getting popular for electric as well as spare gear support very easily available...

Regards and thanks for your referral

[almtmd]

Servo

I have a few HS55 having centering problem after a crash.
Noticeable play on new Dynam 8.4g servos.
Towerpro 5g and 9g cheap and good.
HS56/65 exp and v.good

Thanks

[joed]

Ya agree with your reviews.
But TP sometime have QC problem & Hitec is Ex.
That's why I go for BlueBird servos.

[Artyspec]

Towerpro 9g 5g is a strick no no. They have unpredictable erratic behaviour when u least expect it.

[almtmd]

Servos

Towerpro 9g 5g is a strick no no. They have unpredictable erratic behaviour when u least expect it.

I agree, TP QC no good.
For my case, test first before install on plane/heli.
I have
1) ZAP400 using TP 3x9g on cyclic and 5g on tail
2) TP 2x5g on IFO

I have new Tucano with TP 2x5g,
Will change to HS55.

Thanks

[Helicopter]

Spare gear/case replacement is very important. Once gear stripped if no eaily replacement, ordering from oversea takes a while and shipping cost for small items is not worth it.

[nightbreed]

My question is, when does one use a HS55 (or similar) and when to use a HS81?

[joed]

Hi
That would largely depend on your applications. E.g. for plane like electric cub HS55 or equiv is sufficient. But if for pylon you may need one with high speed & torque servo.

Generally, most manufaturer will provide a simple recommendation guide like this http://www.zhobbyshop.com/Zweb/servoguide.pdf

[nightbreed]

Hi
That would largely depend on your applications. E.g. for plane like electric cub HS55 or equiv is sufficient. But if for pylon you may need one with high speed & torque servo.

Generally, most manufaturer will provide a simple recommendation guide like this http://www.zhobbyshop.com/Zweb/servoguide.pdf

Hmm. Thanks. What about for something like this:

Twinstar II

[Artyspec]

tat uses HS-81s or equivalent like the Hobbico CS12(as used in the review)

[nightbreed]

tat uses HS-81s or equivalent like the Hobbico CS12(as used in the review)

Heheh. Thanks. I got it right, then.