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Old Jan 20, 2012, 10:42 AM
You win again gravity!
SMorrisRC's Avatar
UK
Joined Jan 2010
1,253 Posts
I guess it depends on the ESC used. I'm running mine on Hobbywing Fentiums mainly, but I also have an older (red) unit running on a cheapo HK red-brick ESC. I've left all on the default timing and never had a problem so far.
Maybe its to do with pwm frequency (if it wasn't simply a manufacturing fault)? I've had edf make an alarming 'cough' before, which could do some damage, and that was down to poor esc programming on my part. I think mine is set to either 8 or 16khz, but can check (I left the redbrick with everything on default).
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Old Jan 20, 2012, 05:31 PM
rudiwing
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I made a testrun with automatic timing and everything was OK with the new fan. Next time i will look for the pressure of the fans...
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Old May 01, 2012, 05:25 AM
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Joined Oct 2007
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Some videos of Mercury 90A
小葉的全金屬大飆風 (3 min 5 sec)

小葉的大飆風/2 (2 min 54 sec)

2012-04-28 Nemo's M2000 Maiden Flight (2 min 39 sec)
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Old Jun 07, 2012, 07:56 PM
Not enough hours in the day
Slaanesh's Avatar
Melbourne
Joined Feb 2009
2,429 Posts
Very nice, is HobbyKing going to stock these 90mm EPF all alloy fans as well as the 64mm versions?
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Old Jun 08, 2012, 07:26 AM
You win again gravity!
SMorrisRC's Avatar
UK
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Yes.
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Old Jun 08, 2012, 05:25 PM
Not enough hours in the day
Slaanesh's Avatar
Melbourne
Joined Feb 2009
2,429 Posts
You know I pretty much always check out the HK Vids but the last one I saw before posting my question was the video just before the Mercury 90A!
Excellent!
I wanted to try a Lander Fan but this one looks more durable and also has interesting upgrade potential.
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Old Jun 09, 2012, 12:13 AM
You win again gravity!
SMorrisRC's Avatar
UK
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1,253 Posts
There's no comparison, these are far superior quality to lander. Only question mark is the price HK will sell for.
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Old Aug 30, 2012, 05:18 PM
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United States, IL, Chicago
Joined Aug 2011
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Any news on when the 74 Series will be out?
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Old Oct 20, 2012, 11:34 AM
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United States, IL, Chicago
Joined Aug 2011
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I just spoke with an EPF rep and he said they plan on releasing the 74mm Mercury in December.
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Old Jan 03, 2013, 01:52 PM
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United States, CA, Garden Grove
Joined Sep 2011
207 Posts
Inside a Mig-15
mig-15 edf jet like sound (3 min 17 sec)
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Old Jan 28, 2013, 06:15 PM
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United States, CA, Garden Grove
Joined Sep 2011
207 Posts
Quote:
Originally Posted by EPF HOBBY View Post
Thrust Curve as below:
I get a burn smell after 1 minute on 4S 3300mA 30C pack and the unit get hot so I had to shut it down. Therefore I fly with 4S and and use full power only for take off and short burst.. most of the time I had to keep it around 70% in order to increase reliability. I had nearly 80 flight with my 4700kv in my Mig-15 now.
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