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-   -   ALFA MiG-15 PULSING VIBRATION (https://www.rcuniverse.com/forum/electric-rc-jets-198/7889554-alfa-mig-15-pulsing-vibration.html)

vitonam 08-26-2008 08:06 PM

ALFA MiG-15 PULSING VIBRATION
 
On my Alfa models MiG 15, I've developed a resonance type of pulsing vibration at the higher RPMs. Anyone have any suggestions as to what might be causing this? Thanks!

tIANci 08-27-2008 12:38 AM

RE: ALFA MiG-15 PULSING VIBRATION
 
Imbalanced fan, loose fan, loose motor?

Spid 08-27-2008 06:20 AM

RE: ALFA MiG-15 PULSING VIBRATION
 
Yup. Completely agree with tIANci.

tIANci 08-27-2008 06:28 AM

RE: ALFA MiG-15 PULSING VIBRATION
 
Spid, you are allowed to disagree too ... hahahahaahaaa ...

vitonam 08-27-2008 03:42 PM

RE: ALFA MiG-15 PULSING VIBRATION
 
Hey, THANKS guys! Upon close inspection, the fan had come loose a bit from the hub. By tightening the screw and securing it to the fan with a small square piece of Blenderm tape, I'm back blowing air smoothly.

tIANci 08-27-2008 09:05 PM

RE: ALFA MiG-15 PULSING VIBRATION
 
Vit ... she is a nice place to fly, if they only made her with a 70mm fan for 4S. One of my pals got one and I and thinking of taking it off his hand, I did not really enjoy No. 1 as I made a mistake in using an El CHeapo motor, when it burnt access and replacement was a real chore.


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