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Old Oct 17, 2012, 06:51 PM
setxws6 is online now
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Originally Posted by zeus3313 View Post
Which would be better foam safe ca or epoxy... Or should I go and get gorilla glue (white) I'm going to start my build tonight


Thanks
Personally I've never had good results with foam safe CA. It just never seemed to have good thick strong bonding IMO. Might work well with slow flying planes that don't have much stress on the wing and fuselage structure. Epoxy would work, but it seems too heavy for foam planes to me. The great thing about Gorilla glue is that a little goes a long way and it expands...so you get all those cracks and seems filled with glue.

You can find it at Lowes, Home Depot or any other hardware stores. I think it's at Walmart too...
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Old Oct 17, 2012, 06:56 PM
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I just used regular medium CA and accelerator like they tell you to. Mine's been good to 190+ mph.
Old Oct 17, 2012, 07:50 PM
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Originally Posted by setxws6 View Post
Personally I've never had good results with foam safe CA. It just never seemed to have good thick strong bonding IMO. Might work well with slow flying planes that don't have much stress on the wing and fuselage structure. Epoxy would work, but it seems too heavy for foam planes to me. The great thing about Gorilla glue is that a little goes a long way and it expands...so you get all those cracks and seems filled with glue.

You can find it at Lowes, Home Depot or any other hardware stores. I think it's at Walmart too...
The regular "brown" gorilla glue?.....Medium CA (not foam safe?) which a kicker foam safe or regular?
Sorry about all the questions if this were a stick build i wouldnt be asking many LOL .. I have almost every glue that we are talking about I just want to use the correct stuff
Old Oct 17, 2012, 08:11 PM
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Originally Posted by zeus3313 View Post
The regular "brown" gorilla glue?.....Medium CA (not foam safe?) which a kicker foam safe or regular?
Sorry about all the questions if this were a stick build i wouldnt be asking many LOL .. I have almost every glue that we are talking about I just want to use the correct stuff
Reg brown Gorilla glue or the fast drying white kind both work fine. Just depends on how long you want to wait for it to cure. If you have CA and accelerator you can try it and see how it works for you.
Old Oct 17, 2012, 10:23 PM
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I use the 65's in my 140mph FJU, and 5085's in my 200 FJU, no issue with either.

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Hs 85's ? Is the servos that are being used?
Old Oct 17, 2012, 10:25 PM
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Med CA and kicker in my 140mph FJU, and 30 minute epoxy in my 200mph FJU. I think both are fine in each. The epoxy is stronger a bit.

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What glue works best to assemble the FJU?
Old Oct 17, 2012, 10:26 PM
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I use the 65's in my 140mph FJU, and 5085's in my 200 FJU, no issue with either.
I picked up the 65 mg's ..I was going to build tonight but...maybe tomorrow night
Old Oct 17, 2012, 10:33 PM
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6.5x6.5 Graupner speed prop on 6S is perfect for that motor, runs it all day long. Need a good ESC and battery to run it to it's potential. Not really a good 4S motor, but 7x10 should be a good match if you wanted to try.


QUOTE=War Machine;23005390]moparmyway - would you say thats the best setup for the 1900kv SK3 - 6s2650 and 6.5X6.5 ?
Any idea what that motor would do with a 7X10 and 4s ?[/QUOTE]
Old Oct 17, 2012, 11:00 PM
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Originally Posted by zeus3313 View Post
I picked up the 65 mg's ..I was going to build tonight but...maybe tomorrow night
Those will be fine. The FJ is going so fast that the faster you go the smaller and smaller the movement will be in the control surfaces for changing direction. So unless you plan on doing some 90 degree hard turns at 100+, there's really no need for expensive high torque servos.
Old Oct 17, 2012, 11:40 PM
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My setup should be good for around 125mph but no high speed turns...I still have to figure out what battery to use??.. I also have a couple of these around I wonder if they will work
ES50 Nano™ Servo

Stock Number: GPMM1210
Speed @ 4.8V: 0.13 sec @ 60
Torque @ 4.8V: 16.7 oz-in (1.2 kg-cm)
Dimensions: 0.9 x 0.4 x 0.8 in (22 x 11 x 20 mm)
Weight: 0.32 oz (9 g)
Old Oct 17, 2012, 11:58 PM
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You claim to be using the Himax 3514 2900KV for your setup, and the specs on that motor recommend 2s to 3s lipos. I'm guessing a 2200-3300mah 3s would work.
Old Oct 18, 2012, 12:02 AM
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Yes my LHS talked me into the combo from mpi...hope it's a good setup..I haven't picked it up yet..
Old Oct 18, 2012, 05:09 AM
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Do you think 6s2700 will be big enough ?
Ive already got 4s2700. Im hoping to use 2s+4s2700.

Quote:
Originally Posted by markusvt View Post
6.5x6.5 Graupner speed prop on 6S is perfect for that motor, runs it all day long. Need a good ESC and battery to run it to it's potential. Not really a good 4S motor, but 7x10 should be a good match if you wanted to try.


QUOTE=War Machine;23005390]moparmyway - would you say thats the best setup for the 1900kv SK3 - 6s2650 and 6.5X6.5 ?
Any idea what that motor would do with a 7X10 and 4s ?
[/QUOTE]
Old Oct 18, 2012, 01:00 PM
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Why the dirt on the wings?
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Quote:
Originally Posted by War Machine View Post
Do you think 6s2700 will be big enough ?
Ive already got 4s2700. Im hoping to use 2s+4s2700.
Bigger batts would serve you better as LVCO happens quickly @ 150+ amps
Old Oct 18, 2012, 11:13 PM
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My Funjet likes to nose up under heavy throttle, cg is on the money with the tabs under the wings. Does it require up thrust or down thrust on the motor mount to remain more neutral?


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