Hello - Anyone still active here ?
 

Just checking to see if anyone still checks in here regarding Century Swift electric helicopters.

Thanks!
-John

RE: Hello - Anyone still active here ?
 

Yes I fly the Swift, Swift NX, and the new E-640

Charles

RE: Hello - Anyone still active here ?
 

Great! I have an Swift NX (built last year) and just recently built a Swift 16 (first flight was last Monday). Also have another complete NX in spare parts, and lots of other spare parts.

Just looking to see where there's Swift activity. I'm also on RCGroups and HeliFreak.

-John

RE: Hello - Anyone still active here ?
 

I'm on those as well as Rotorsport

RE: Hello - Anyone still active here ?
 

hello everyone<div>
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RE: Hello - Anyone still active here ?
 

hello , is anyone know about the jr xp8103 airplane version  to program for helicopter?<div>
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RE: Hello - Anyone still active here ?
 

For what helicopter?

I just bought a Century Swift 550 size I'm running two 3 cell batteries in parallel and was wondering what the smallest mha size battery these things will run on? I'm presently running 2200mha 3 cell right now and I notice the higher the "C" rating the cooler the batteries are at the end of my flights.

Yes, in effect the C rating tells you how many amps a battery pack can deliver without running too hot. So the higher the C rating the more watts that pack can deliver before it gets overstressed (heats up).

You are trying to run it using 2 x 3S/2200 mah packs in PARALLEL, resulting in a battery pack of 11.1V/4400mah??? That would mean you are trying to set it up to run on 11.1 Volts??? That would not be able to deliver enough power to fly it very well if at all. It takes about 400 watts (volts x amps) to just fly a 550 sized heli in a very sedate way, with a rotor speed around 1500.

The max wattage a 20C pack can deliver for very short periods of time (a few seconds) is 11.1 x 4.4 x 20 = 976.8....over a period of a few minutes that would be about 20% of that....say 200 watts.

You would need to be using a motor with a KV of about 1500, just to get a 1500 head speed with a 10T pinion. And as you can see, your max wattage available would still be too little for any sustained flight of consequence.

Even running the packs in series (6S/2200) would allow you to use a motor with a more reasonable KV (e,g 800 to 1100), your flight times would only be about 2 1/12 minutes or maybe even less, depending on the quality and condition of the packs.

Thanks for the info I have two 5cell 4000mha packs on the way 25-50C that should work much better. I found the two three cell in series packs worked much better with the 35C batteries so now I'll just have to spend a bit of money.

Last weekend I found one at a garage sale. Replaced the receiver and bound it to my DX18QQ.,set a throttle and pitch curve and took it out for a test hover. didn't like the gyro so put in a mini G.After fine tuning the throttle n pitch and gyro what a sweet little machine it turned out to be. I think I will take the woodys off and put some carbon Blades on to see how it Auto,s