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Old Dec 06, 2014, 07:09 AM
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chalmene's Avatar
Joined Mar 2014
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Has anyone here added rudders to this bird? No need to tell me it doesn't need them, I'm a purist and this would be the first mod I'd do if I aquired one of these.
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Old Dec 08, 2014, 03:35 PM
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Nova Scotia, Canada
Joined Jun 2006
248 Posts
Pretty quiet on here huh ??? Don't think anybody messed with rudders but looks like it would easy enough except for the chore of running the servo wires towards the front.
I installed my RX today and found a good spot without running extensions - after a bit of exacto blading I "hogged out" that already channeled area at the rear top of the battery bay. My Futaba 617 RX slid in neat and tidy after a bit of trial and error foam removal. I typically find these EDF jets are "nose heavy" and any weight aft will hopefully help.
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Old Dec 08, 2014, 03:41 PM
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USA, MD, Frederick
Joined Jan 2010
4,190 Posts
I've seen people add rudders to the SkyAngel 50mm version, so
I don't see why it can't be done with a 64mm one.
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Old Dec 27, 2014, 12:30 PM
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appa609's Avatar
Ontario, Canada.
Joined Aug 2008
580 Posts
Upgrade options?

Hey everyone. I recently spent $129 the 3s version of the freewing f-18 for Christmas. It looks amazing, and I'm mostly very happy with it. In the manual, it says its weight on 3s should be 780g while its thrust should be 650g, which would be pretty good. However, when I actually went to verify these numbers, I got an AUW of 890g with only 510g of thrust. I know this is technically probably enough to fly around, but I'd really like to try to squeeze some extra performance out of this airframe.
Now, based off the only review on the distributor's website, I seem to have an easy out: plug in a 4s. Even though the fact that they specifically offer a 4s version with a bigger esc and lower kV motors is a clear indication that this shouldn't work, the poster seems to have had success simply switching the battery out and leaving everything else alone. Here's the link:

http://www.motionrc.com/freewing-f-a...s-pnp/#reviews

What do you all think? Weather has prevented me from flying so far, and I don't want to burn out the esc before the first flight. Is the review trustworthy?

Thanks if you have any input
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Old Dec 27, 2014, 12:56 PM
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tdford's Avatar
United States, CO
Joined Dec 2012
2,486 Posts
You'll burn up the 3s motor and over amp the ESC on 4s lipo....
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Old Dec 27, 2014, 06:45 PM
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appa609's Avatar
Ontario, Canada.
Joined Aug 2008
580 Posts
I'm drawing a peak of 24 A right now out of 30 I have available on a 4300 kV motor. Do you think I can get siginificantly more thrust by installing something like a 5000 or 4800 kV motor?
http://www.hobbyking.com/hobbyking/s...r_55_64mm.html
http://www.hobbyking.com/hobbyking/s...r_55_64mm.html
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Old Dec 27, 2014, 09:04 PM
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Quote:
Originally Posted by appa609 View Post
I'm drawing a peak of 24 A right now out of 30 I have available on a 4300 kV motor. Do you think I can get siginificantly more thrust by installing something like a 5000 or 4800 kV motor?
http://www.hobbyking.com/hobbyking/s...r_55_64mm.html
http://www.hobbyking.com/hobbyking/s...r_55_64mm.html
Those motors are going to draw closer to 40A on 3S if you're using a 5 blade fan. I've run 5100 on 3S and not overly impressed.

If you want more speed and reliability go with a 3500-3800 kV motor on 4S. You can run those on 40A.
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Old Dec 28, 2014, 04:12 PM
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Nova Scotia, Canada
Joined Jun 2006
248 Posts
"Appa" - Firstly; and just for kicks; no snow here in N.S. in fact our club New Years Day "first flight" looks like the grass runway will be usable
Heard lots of white stuff your way ???
AUW I think; is "fudged" quite a bit by the model companies. Built alot of EDF's in the past six years and all of them come out more heavy than advertised.
But... I usually mod them and build strong including better servos, ESC's, and more MAH batts for longer flights. Speaking "stock" its hard to find a 1:1 powerful system with upgrading somewhat.
I'm just building my Raptor 4S right now to keep me busy for the winter.
I agree with what the others mentioned and many on here warned the 3S version lacked "guts" so to speak. I too looked at the F-18 you have but chose the F-22. Not so many on here nowadays but I do check weekly.
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Old Jan 03, 2015, 05:41 PM
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United States, CA, La Quinta
Joined Feb 2014
200 Posts
Great EDF for modifying!!!!

My 4s jet sadly went bye bye when my wingtip stuck in someone's fuselage while flying. My jet went into the ground as the mishap happened about 70 feet off the ground. Only damaged the fuselage so bought another one and used all the other parts. While assembling, I had a 100 amp ESC from another project so.......I tried my 3700kv cyclone power in runner with a 10 blade fan and metal housing paired with a 5S 2200 hyperion lipo. Oh man This baby rocks now. Hand launching is a non issue as it climbs and has more than 1:1 thrust. Best of all, a 5s 2200 will fit in the cockpit easily without any cutting. Push the lipo all the way forward and with a metal housing fan, NO balancing weight is required. CG is spot on per the manual. Did 3 flights and this baby flies smooth. I am going to put an A3 super gyro in it just to really make it smooth and I want to get more experience with gyro's. The peak amp output is 112 amps though so I can't do full throttle much at all. If you have an extra in runner laying around and a 5S with a high esc.....consider this jet.

UPDATE: Sorry, this is about the new F18 64mm, accidentally posted in wrong thread.
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Old Jan 08, 2015, 11:28 AM
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Joined Oct 2014
155 Posts
I assume nobody has found a set of retracts that fit in this bird?

Also, is there a better 4s F-22 around this size? or should I just get this bird, in the 4s variety?

EDIT: actually, is there ANY EDFs this size that are better, and not terribly expensive?
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