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-   -   Telemaster 40 Servos? (https://www.rcuniverse.com/forum/kit-building-121/9341218-telemaster-40-servos.html)

alaursen 12-18-2009 01:39 PM

Telemaster 40 Servos?
 
Can anyone advise on whether micro servos like the HS-81 (instead of the recommended HS-322) would be sufficient for the ailerons and flaps on the Telemaster 40? It'sfaster but a little less torque but I'm not sure if that will matter for this trainer:

<div style="margin: 0in 0in 0pt"><span style="font-size: 10pt"><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">SPECS (HS-322):
Transit Speed: 0.19 sec/60&deg; @ 4.8V</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">0.15 sec/60&deg; @ 6.0V</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">Output Torque:42.00 oz-in@ 4.8V (2.6 kg-cm)</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">51.00 oz-in@ 6.0V (3 kg-cm)</span></div>
SPECS (HS-81):
Transit Speed: 0.11 sec/60&deg; @ 4.8V</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">0.09 sec/60&deg; @ 6.0V</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">Output Torque: 36.10 oz-in@ 4.8V (2.6 kg-cm)</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt">41.66 oz-in@ 6.0V (3 kg-cm)</span></div><div style="margin: 0in 0in 0pt"><span style="font-size: 10pt"> </span>
I can't seem to find any specson the exactthe forces required for each control surface. I wish they would include this data in the kits and not assume us modelers just need a "recommended" servo. We like to analyze this stuff!

Thanks,

Art</div>

mclina 12-18-2009 03:26 PM

RE: Telemaster 40 Servos?
 
I would not use a micro servo on a 40 size plane, except maybe for the throttle. Even then, only if weight were a consideration. Standard servos are cheaper. I have been using Hitec 311's for all of my 40 size sport planes for a long time. They are $9 each.

alaursen 12-18-2009 07:52 PM

RE: Telemaster 40 Servos?
 
Yeah - probably a good idea. I just thought that the smaller servos would look better since they hang below the wing on this model.

Art


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