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Old Apr 15, 2014, 02:03 PM
Tim Lampe; Hobbico R&D
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Champaign, IL
Joined Dec 2009
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We examined the heat reading in the log. It rose only to about 118F which is nothing. I'll post the log sometime soon.

Thanks for more comments gentlemen.

Tim
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Old Apr 15, 2014, 02:04 PM
Tim Lampe; Hobbico R&D
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Champaign, IL
Joined Dec 2009
3,375 Posts
Quote:
Originally Posted by jackosmeister View Post
D47 have been used in F5D models successfully.

The loads involved on surfaces with pylon racers are very minimal, as long as flutter isnt involved.

Its possible a D47 went bad, or a connection broke, but a D47 is perfectly up to the job of moving the surface,
Thanks Chris.

If it matters, they were D47S servos which are faster, but less torque than the non-"S" version. I believe the "S" edition goes about 16 oz-in torque (compared to the regular version which I believe is about 20 oz-in torque).

Tim
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Old Apr 15, 2014, 02:17 PM
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Staffs, UK
Joined Apr 2009
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Quote:
Originally Posted by Fentonflyers View Post
To me the D47's are suspect then. Perhaps one of them got hot and overloaded the esc? I have never had a loss with Fasst. Even in tough rf environments.
Maybe as Fenton suggests the possibility of a servo getting overloaded, do any of them smell? If your wife catches you smelling your model your on your own though
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Old Apr 15, 2014, 02:40 PM
Tim Lampe; Hobbico R&D
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Champaign, IL
Joined Dec 2009
3,375 Posts
I have the servos right here at my desk...no bad smells.

Meh, think I'll just go back to the servos that have the highest proportion of narrow width and quality which is the Airtronics 94802 (9mm width). Been using them in my Vipers and my other Rifle 1M. I'll stick with the Futaba S3157 on the elevator.

Probably swap out the Ice Lite 50 for an Edge Lite 50 ESC too (nothing wrong with the Ice series, just haven't confirmed which of the components went awry).

Tim
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Last edited by KRProton; Apr 15, 2014 at 03:00 PM.
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Old Apr 15, 2014, 09:47 PM
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Joined Jan 2013
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Isn't the Dymond D60, Hyperon DS09, Airtronics 94802, Protech B109, Robbe-Futaba FS40, Ripmax SD150 and Topaz 9mm all the same rebranded servo? Didn't the Airtronics 94802 at one time have a bad habit of the case cracking?
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Old Apr 15, 2014, 09:53 PM
Tim Lampe; Hobbico R&D
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Champaign, IL
Joined Dec 2009
3,375 Posts
I know the Hyperion DS09 and Airtronics 94802 are virtually the same - they look the same to me inside and out, but the 94802 is specked out for 6V too (where they Hyperion I believe is not). I don't know anything about any case problems with the Airtronics. I have them in both of my Vipers one of which has 100 flights and the other 200 flights - actual flights logged in my log book.

Tim
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Old Apr 15, 2014, 10:00 PM
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United States, MO, Fenton
Joined Jan 2012
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I think I have read that a lot of the Hyperion, Airtronics, and others are made by SJ(Graupner).
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