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Old Aug 25, 2012, 05:54 AM
anlucas is offline
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Originally Posted by Goody63 View Post
Hey Andrew

Flew my J-11B with the same exact setup and had the same issue!!

Dynamically balanced both motors and fans (x2) and thought they sounded great.....till I flew it!!

Still pretty quiet but I just think the HK outrunners have their limitations compared to nice HET inrunners.
Thanks Dave. My J-11 took a back seat to this one LOL. That's next I swear....
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Old Aug 25, 2012, 07:13 AM
St. Martin is offline
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Big gov never Works
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Quote:
Still pretty quiet but I just think the HK outrunners have their limitations compared to nice HET inrunners.
Sounds like only one fan has a balance issue.

Fuzz
Old Aug 25, 2012, 08:54 AM
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Originally Posted by St. Martin View Post
Sounds like only one fan has a balance issue.

Fuzz
That sounds like it. Thanks for the hint.
Old Aug 25, 2012, 09:08 AM
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John
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Originally Posted by TheCure View Post
Very nice! I applaud all your efforts. It's certainly a beautiful sounding jet. Nicest looking EDF in my opinion too.

You really need to showcase all your efforts and do them justice. Get a decent video camera - or at least turn off that crap auto focus that continually oscillates between blurry and more blurry. A tripod isnt a bad idea too.
I have a tripod... Just have to practice using it... Also, though, here in Vegas it gets really, really bright which makes it hard to see the lcd screen. I think my wife did a good job considering. I would like more close up shots of the plane while I fly. Hopefully in the near future, i will get better footage.
Old Aug 25, 2012, 09:10 AM
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John
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Originally Posted by anlucas View Post
Really nice JK!

That thing really moves.

Funny that when you have a perfectly balanced EDF which is quiet on the bench or in the hands in your case, the motor noise comes through louder when installed in the fuse.
I think the setup is still really quiet compared to others...
Old Aug 25, 2012, 09:13 AM
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I think the setup is still really quiet compared to others...
No comparison really.
Old Aug 25, 2012, 10:36 AM
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Diverted by planks
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Quote:
Originally Posted by Goody63 View Post
Hey Andrew

Flew my J-11B with the same exact setup and had the same issue!!

Dynamically balanced both motors and fans (x2) and thought they sounded great.....till I flew it!!

Still pretty quiet but I just think the HK outrunners have their limitations compared to nice HET inrunners.

Speaking of nice setups.......congrats to JK671 on the maiden too!! Nice model!!

http://www.youtube.com/watch?v=8m78fxO_tbo
Glad it is not just me! I had a CS-10 I combined with a SAPAC motor, and it was all sounding and running perfect on the bench, but once installed in my Phase 3 F16, sounded like it was going to blow. I took it out, replaced it with a standard five blade fan, and now it was smooth, powerful, and fast! Oh well.
Old Aug 25, 2012, 01:51 PM
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Originally Posted by anlucas View Post
That sounds like it. Thanks for the hint.
Try a small 1/8" sq piece of masking tape, inside the spinner. Then try the dynamic balance of turning the spinner. If it does not help, move the tape 45deg and try again. I have been doing this with Minifans since my first in 1998. Even the alum spinner in the Pro is improved with the tape. Oliver even suggests that the fan MAY run smoother without the spinner.

If you perform this task in the model, the foam is a good indicator of imperfections. It's a sounding board.

Fuzz
Old Aug 25, 2012, 03:38 PM
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I
Quote:
Originally Posted by St. Martin View Post
Try a small 1/8" sq piece of masking tape, inside the spinner. Then try the dynamic balance of turning the spinner. If it does not help, move the tape 45deg and try again. I have been doing this with Minifans since my first in 1998. Even the alum spinner in the Pro is improved with the tape. Oliver even suggests that the fan MAY run smoother without the spinner.

If you perform this task in the model, the foam is a good indicator of imperfections. It's a sounding board.

Fuzz
Yeah, that's the method I use.
Old Aug 25, 2012, 08:42 PM
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where's the 18 blade 70mm ??
Old Aug 25, 2012, 08:45 PM
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They are still trying to FIND the blades they made for that!! The mould operator really needs some glasses! It has to be assembled in a clean room, under microsope, with micro-tweezers!
Old Aug 25, 2012, 10:39 PM
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Always Fly 2 Mistakes High!
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I got the 10 blade and the HK 100 amp opto esc and HK 5 amp BEC installed. With a 40C Zippy FlightMax 4000 and Cyclone Power 3300 kv motor:

92 Amps
1500 watts peak...settled in around 900 at about 75% throttle

Ran it for about 3 minutes and the ESC was cool to the touch...battery was quite warm...the biggest concern was that the EC3 connectors were VERY hot. May have to change over to EC5's but would not like to do that and take it all apart again.

Wondering it it got so hot because i had the wattmeter in between???

Otherwise going to have to fly this setup at 60% or less to keep them coolish.

Russ
Old Aug 25, 2012, 11:02 PM
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Don't Move I've Dropped My Nut
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Russ,

If my memory serves me correctly, the EC3 connectors are kinda stressed at 60 amps! Also, I assume you wires to the ESC are #10 (or larger)??
Old Aug 25, 2012, 11:07 PM
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3DHOG
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no doubt about it, it has to have EC5's
Old Aug 26, 2012, 02:31 AM
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OK guys, here's the 3rd flight of my SU-35... I love this plane! Near the end of the flight, however, I was messing with the thrust vectoring and ended up inverted, heading towards the ground. I didn't have much I could do. The plane was travelling too slow to turn her around. I just pushed both sticks all the way up and started praying! I don't know how, but my ExtremeRC CS-10 Alloy setup with the HET 2w-30's kicked in and lifted her to safety!!! Also, we were able to get much better footage as the sun was going down. Hope you enjoy the video and thanks for watching!

Freewing SU-35 Twin 70mm EDF Jet Flight #3 Near Crash Saved by Thrust Vectoring (4 min 12 sec)


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