T-Pro Servos from HobbyPartz

[Thx1326]

Has anyone tried these servos.  They seem to have a good write-up and specs look good.  For digital and metal - they appear to be quite a deal.  Any experience from anyone using these on a 450 class heli:

For the Collective - MG90: $7.00

The T-Pro MG90S is an upgrade of the T-Pro SG90. Better outputs with more torque and speed than the SG90 and also has metal gears, thus no stripping in crashes! Great reputation for reliability and inexpensive price. Can't beat it for the money. The MG90S is great for 200-450 size rc helicopter and light weight rc airplane.
•Light weight high strength nylon casing
•Durable metal gear design
•Dimension: 23*12.2*29mm
•Stall torque: 2.0kg/cm(4.8V )2.4kg/cm(6V)
•Operating speed: 0.11sec/60degree(4.8v), 0.09sec/60degree(6v)
•Operating voltage: 4.8-6.0V
•Dead band width: 5us

For the Tail - MG90s:  $6.00

Great servos for the price. Withstand plenty of hard hits and are fairly accurate. Perfect flap servos. If you have a sailplane and need great flap servos, buy them. Awesome price for Metal gears!  Works great on 450 size rc helicopter. Tested on a EXI-450 rc helicopter for pitch servo with good result. Highly recommended to buy for your favorite rc toy!
Weight: 13.4g
Dimension: 22.8*12.2*28.5mm
Stall torque: 1.8kg/cm (4.8V) - 2.2kg/cm (6.0V)
Operating speed: 0.10sec/60degree(4.8v) - 0.08sec/60degree(6.0V)
Operating voltage: 4.8-6.0V
Temperature range:  0- 55deg
Servo Plug: JR (Fits JR and Futaba)
 

[3dt]

Hey bud I just tried the standard T-Pro SG90 servo with the plastic gears and so far it's been working great. Centering is pretty good considering it's only a standard analog servo. The MG90 should perform even better since they are digital and have metal gears. I haven't put many flights on the SG90 yet to see how well they hold up 

[Thx1326]

Thanks for the report... would be interested in hearing more.  From the specs it looks like the mg90's would make a good cyclics and the mg90s for the tail?  Where can I get some metal BLACK washers for the screws for the frame?  I've found silver and blue - but no black.

[Thx1326]

The GWS HPXF Ball Bearing servos have fabulous specs.  My only concern is that they are all plastic / nylon.  I wish they made this same servo with metal gears and then again, I wish they made a digital version.

I ordered a set of the TowerPro MG90's and have them sitting here - still in the box trying to decide if I keep them or return them and replace them with the GWS servos.  The T-Pros had great specs and were advertized as being digital (a lot of dealers are listing them as digital).  They are NOT digital.  They do have metal gears - but the specs are not as good as the GWS servos.  So which do I want, the better spec or the metal gears?  All opinions are welcome here... please chime in.

I'm trying to decide if I sacrifice the digital "control" and durability of metal and use these servos all the way around.  They certainly have more speed and torque than anything else in the price range and instead of hoping for duarbility - just buy a couple of extras for replacements.

The big question is how do I fit a servo with 2 hole mounting tabs into a chassis (trex clone) that had servos with single hole tabs?  Any help here?