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Century Radikal E640 - Swift 16 NX
› Swift NX setup (vid added)
04-29-2010 10:17 PM  8 years agoPost 1
RC'er

rrNovice

Quakertown, PA

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Hello All, I am new to the forums and just bought a Swift NX. I had a concept 30 about 5 years ago and sold it. The size of the Swift & the fact that it is electric made me buy one.

I was wanting opinions an how I have all of the wiring routed?

I bought the setup from "Bobby" (great guy) at XXXmodels in Florida.

Setup:

Swift NX
Century 1300 kv motor/Electron 60/80A esc (4s/5s power combo)
Gy520/BLS254
3x HS-5485HB cyclic servos
I ordered 2 batts for it:
ZIPPY 5000mAh 4S1P 30C
Turnigy 3600mAh 4S 30C
9303 tx & R921 rx

Completed pics:

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04-30-2010 02:50 AM  8 years agoPost 2
seflyer

rrApprentice

Northern California, Palo Cedro

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nice looking setup, should fly real nice. I recommend turning your satellite receiver 90 degress though to ensure good reception.other than that it looks all good.

Kevin

My heli is right side up -- the world is upside down

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04-30-2010 08:45 AM  8 years agoPost 3
HarveyR

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France - North

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One thing really cool (for inverted and 3D flight at least) with recent Swifts (NX, 550 and 620) is that the CoG is really high.

The only thing, I find it makes it look flimsy and "long legged" with the high skids. I find it's a shame they don't make a kind of lower tray that would come down to the level of the underneath of the canopy. Besides looking beefier/stronger/aggressive, they could use lower profile Skid Struts and reduce the spool up / spool down dance.

I guess it wouldn't be that hard to make out of carbon, just make a box and screw it to the skid bolts, and use the Hawk's low profile tuff landing gear.

PS : Your setup looks good ! I'd just tend to strap the tail servo wire so it doesn't vibrate forwards to the main gear or get mangled in the near servo arm

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04-30-2010 01:24 PM  8 years agoPost 4
RC'er

rrNovice

Quakertown, PA

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Thanks Kevin, I'll rotate the satellite rx then.

Thanks Harvey, sounds like a good idea. The way I have it coiled it could expand and move around a lot. Interesting observation on the tall landing gear, I'll have to wait and see how much it dances.

I won't have the batts until Monday and a friend of mine is going to help me set it up this weekend.

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04-30-2010 02:59 PM  8 years agoPost 5
HarveyR

rrVeteran

France - North

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Another point: it could be an idea to wait to have the batteries before finally attaching everything, because you'll have to check the balancing (for your two types of batteries, won't make it easier), and maybe you'll want to move things around (ESC / GYRO / RX in particular) to get balancing right (this is more or less important depending on if you're going to fly inverted or not).

You have all of your electroincs quite far back, maybe you'll be tail heavy (specially with the 4S 3600mAH, which is probably quite light). It depends how far forwards you'll be able to push the LiPo.

I think the dance problem is a known "little" issue (due to the high landing skids I believe). I have it myself (on my 620SE) and read quite a few people here about it. The NX has the tuff landing gear so it shouldn't be as bad as with older Swifts. But even my 620SE with tuff landing gear is pretty shaky on spool up and spool down (and real smooth outside these frequencies). In fact, on spool up, I make sure I get through the shaky RPM quickly. On spool down, I do the same by hitting Throttle Hold and using some positive/negative pitch to slow down quickly. Whatever, don't worry about this, it ends up fine for everyone.

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04-30-2010 03:42 PM  8 years agoPost 6
beavis1

rrKey Veteran

New York state

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Yes watch the 4 S 3600 for heat. 4 cell pulls more amps so the 5000 is a better choice for sure. The 3600 may be ok for sporting around but it is on the small side and the flight will be on the short side too. Also when you run the 3600 you will need to add lead to the battery to = the 5000 if you go between them for balance.

Looks like a good litle set up should run real nice for you
Enjoy ! I love mine

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04-30-2010 04:40 PM  8 years agoPost 7
HarveyR

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France - North

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Not sure I get this right... both his batteries are 4S (the 3600 and 5000), and 30C gives 108Amps and 150 Amps, more than the ESC car take. Maybe I'm missing some knowledge here, but in this setup why would the 3600 heat more than the 5000? However, as you say, it will fly less long.

Hopefully there'll be enough room to push the 3600 forwards enough (and the 5000 backwards enough) to avoid the lead, I'm curious to know this, tell us how it turns out.

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04-30-2010 07:45 PM  8 years agoPost 8
RC'er

rrNovice

Quakertown, PA

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The difference in weight between the 2 packs is 4.4 oz (quite a bit) and the reason I ordered 2 different ones is so I could learn from it. I figured if I bought 2 of the same batteries I wouldn't be gaining any knowledge but, now that we are discussing it I should have bought a 5S instead that weighs much closer to the 4S 5000 weight. That would have been a better choice. Oh well, My next order I'll get a 5S pack.

The comment about drawing more amps on a 4S is making me think I need to add a heat sink to the esc. That looks fairly easy to do and already have paste and a sink that would probably work.

Scott

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05-01-2010 02:58 PM  8 years agoPost 9
D2W

rrNovice

Summerland

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I'm new to electric helis. Is it OK practice to attach the RC receiver to the heli using (servo/gyro) foam mounting tape? In the 'old days' we used to wrap the receivers in foam rubber and then attach them to the airframe using rubber bands or velcro strips. Are the new 2.4GHz receivers less susceptible to damage from vibration?

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05-01-2010 03:15 PM  8 years agoPost 10
dicharry

rrApprentice

Franklinton, LA

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Nice job. I should be so neat.

When people fear the government you have tyranny, when the government fears the people ,freedom

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05-03-2010 01:05 AM  8 years agoPost 11
RC'er

rrNovice

Quakertown, PA

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Posted by HarvyR
"Hopefully there'll be enough room to push the 3600 forwards enough (and the 5000 backwards enough) to avoid the lead, I'm curious to know this, tell us how it turns out."

I set it all up today with the help of a very experienced rc heli friend. It balanced perfectly level with the 5000 4S pack and it was just slightly tail heavy with the 3600 4S pack all the way forward on the tray with the canopy on.

We were both impressed by how well everything was balanced. The tail rotor assembly was perfect right out of the box. Balancing the head with just the paddles & flybar was spot on without doing anything (I will take credit for that:-). balancing the head with flybar, paddles & blades was really close too, we just need 2 very small pieces of tape on one blade to make it perfect.

Now I can't wait to fly it. I hope it doesn't take to long to get esc issues resolved.

Scott

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05-03-2010 05:03 AM  8 years agoPost 12
beavis1

rrKey Veteran

New York state

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Great !

Yes definitly experiment I did not mean anything negative with my post... The china 4S 3600 just watch the heat and the pack will probbably drop off hard on you when she is ready.

I know the same set up with 4000 MAH packs they were puffing cells very often. Just go slow and try them for a few min check and carry on till you get a good feel on how long they will go and how they build heat.

Thats all I was saying.

Yea I have been flying this all last summer here in the USA so I kind of knew there was not enough room to shif the packs and some weight would be needed. Should have clarified that.

Enjoy ! I love mine !

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05-03-2010 08:31 AM  8 years agoPost 13
HarveyR

rrVeteran

France - North

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Pleased to hear the balacing and the rest is turning out right!

D2W, I use Velcro (not straps) to attach the RX to the airframe and add on or two rubber bands around it just in case.

The 2.4GHz manual says you shouldn't rap them in foam as they could get too hot.

You can be careful where you put it. I try to have it far from the ESC/Engine area, although with these 2.4Ghs I've never experienced any interferences, even when I had the RX in between the ESC and Engine. On my 620SE it's between the two battery trays, right up front.

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05-06-2010 11:52 PM  8 years agoPost 14
RC'er

rrNovice

Quakertown, PA

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I got the new esc from Century today and this one works fine. I programmed it and only hovered a little bit in my 2 car garage because it is very windy outside right now.

Harvey, here is a pic of the balance with the Turnigy 3600mAh 4S 30C pack:

And here is how everything is set up after all of the suggestions:

Comments and more suggestions are welcome.

Scott

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05-07-2010 12:38 AM  8 years agoPost 15
RC'er

rrNovice

Quakertown, PA

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She just left the ground. Boy, it's intimidating flying a 30 size heli in a 2 car garage for the first flight! I was standing in the doorway inside the house so, I was never in any danger.

Scott

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05-07-2010 12:40 AM  8 years agoPost 16
RC'er

rrNovice

Quakertown, PA

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2nd lift off went well...tomorrow if the wind calms down I'll get some time on it outside.

Scott

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05-07-2010 01:12 AM  8 years agoPost 17
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Nice setup but bad idea to fly in there. When it goes bad, there is no escape............Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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05-07-2010 01:40 AM  8 years agoPost 18
RC'er

rrNovice

Quakertown, PA

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Thanks Ron!

I was actually standing in the house looking through the doorway to the garage so, just "one step" to the right and I am totally shielded from the garage/heli by a wall. If you are in an open field on the first flight with the heli and something went wrong, then...you would really have no where to hide.

Scott

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05-07-2010 03:24 AM  8 years agoPost 19
oldfart

rrProfessor

Vancouver, Canada

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Looks good, but check the servo to bellcranks set-up. The distance from the center of the servo arm to the ball on each side should be the same distance as that from the center of the T-Bellcranks and their ball joints. If they are not the same you will get binding at the extremes of travel.

From the pictures, it looks like the distances on the servo arms are more then on the bellcranks.

Phil

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05-07-2010 03:36 AM  8 years agoPost 20
Greybird

rrVeteran

Davie, Florida

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oldfart, the recommended distance is 27mm on ail, pit, and 21.5 on ele. The bellcranks are 25mm, and 19.5mm. That is what Century calls for. Their is no binding.

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Century Radikal E640 - Swift 16 NX
› Swift NX setup (vid added)
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