Kyosho F-4 Phantom ARF - Page 15 - RC Groups
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Jun 22, 2009, 06:54 AM
Flying electric since 1986
Mark Wolf's Avatar
I had to enlarge the battery box slightly so I could move the pack back for CG purposes.
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Aug 09, 2009, 11:28 AM
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vinno's Avatar
anyone flying these on 35 mhz ?? any interferance issues ?
Aug 09, 2009, 01:03 PM
Registered User
yes i am flying one on 35mhz and i have alot of interferance but only when the motor is not running!! i have no interferance when at full power or low power!! not sure what the problem is as i also have the F-16 and that is fine!! I am slowly putting everything on 2.4G so maybe this will sort out the problem!
Aug 10, 2009, 02:46 PM
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vinno's Avatar
cheers Paul ,
the Intruder is ok on 35mhz then? Am a skint luddite so am stuck with 35meg have sourced a phantom but have been warned edf's and 35mhz don t get on too well ?
Aug 11, 2009, 03:38 AM
Registered User
I have 8 edf jets and the phantom is the only one which i have problems with on 35mhz so it is prob a dodgy phantom and the one you have sourced will be fine.
Alot of people fly the phantom on 35mhz and have no problems.
Aug 11, 2009, 06:22 AM
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vinno's Avatar
cheers again Paul , that is a relief!! Will get 2.4 but am waaaaayyy to skint currently! are they ok on the stock setup ? This will be my first edf......
Aug 11, 2009, 10:48 AM
cray2602's Avatar
Stock setup is fine if you use the recomended battery size. And absolutely make sure it isnt nose heavy. Mine always handled horrible if it was even a tad bit nose heavy, with CG set as per the manual it handles good.
Aug 11, 2009, 03:25 PM
Registered User
yes the stock set up is fine and i used a slightly bigger battery than the recomended one but cant remember which is was now and i wont be home for a couple of weeks to check.
Aug 11, 2009, 05:03 PM
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vinno's Avatar
cheers guys
Mar 14, 2013, 01:31 AM
Helicopter Baron
spaaarky21's Avatar
Just picked one of these up from A Main Hobbies. It looks good but I'm disappointed about a few things. I wonder if the build quality has gone down since these first came out. For starters, one of the servos had an issue right out of the box where a little pressure on the top of the arm would cause it to snap about 20 degrees to the side. I don't know whether there would ever be that strong of a downward pressure during flight but the servo is clearly defective and I don't want to risk it. So that was one thing I needed to replace right out off of the box. Actually, since I prefer to keep aileron/taileron servos matched, I replaced them both... so make that two servos I had to buy right away.

Secondly, the ESC came completely unlabeled (sure wish I knew what it was rated for), the batteries leads looked like that had been hacked off with a spoon, and throttle comes on with almost no throttle at all. It sounds like people sometimes have trouble with them anyway, so I went ahead and replaced it with an 18A speed control I had. According to my amp meter, the plane drew just 13A at full throttle with the original ESC.

While I was making improvements, I also went ahead and replaced the wire control rods with carbon fiber ones. However, space is tight under the cover so I'm going to have to replace the bolts on the Du-Bro connectors with a set screw.

This cheap little adventure is starting to add up a bit. This thing had better fly great (although I know better than to expect that.)
Dec 19, 2016, 11:03 AM
Fly,Crash, Burn,Fix, repeat
Gravythe Clown's Avatar
And the thread shall see new life. LOL

So I got one of these this last week and put some air under her wings this weekend. During the build I changed out the ESC with a 45A 2-4S one I had. I had to add tone of weight to the tail to get the CG with a 3s 1300 45c nanotech.
first flight was 3s, throw glided about 20' before setting down with WOT. second toss tok about 30' before she would climb out, but she got airborne. The flight was very dogish and squirrely. Didn't take much trim and landed fine.
Second flight I went 4s. Climbed out fine and had plenty of power. Ran 80% throttle most flight. Still squirrely and landed really hot.

And yeah, I almost learned the hard way how she don't like to do rolls but pulled her out in time.

Dec 19, 2016, 02:23 PM
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edwen303's Avatar
Wow you are the one close enough to the seller
Now put in gyro and perhaps more expo, and let's know how she would do Also max the taileron travel, full throttle, then pull the nose up before attempting the roll. I love the Phantom so much once I even did a pusher of this Kyosho size.
Keep this little Phantom flying!
Dec 19, 2016, 03:51 PM
Fly,Crash, Burn,Fix, repeat
Gravythe Clown's Avatar
Lol funny I was thinking that this F-4 would be way better with a pusher setup. Like a 2836 -3000kv and 4.5x4.5 prop.


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