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Home✈️Aircraft🚁Helicoptere-Elec-Helicopters New or Limited ActivityNext-D › My winter project, 14s Ballistic
12-03-2012 11:49 AM  7 years ago
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yannick

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South Korea

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My winter project, 14s Ballistic
Ok so my winter project would be to convert my ballistic to a 14 s setup.

It is coming from the acquisition of an Xxtreme. I realized how easy it is and now that I have the 14s charging setup, charging is not an issue. I am not looking for insane power but the 14s is soo torquy and everything runs soooo cool!

So basically the setup would be:
- ballistic...
- radix 710
- scorpion 4525 520kv
- VBar governor
- YGE 160 XXTREME edition (same as logo 800)
- Nanotech 4000mah 6s X 2 +2s

I do not know yet for the pinion 12 or 13 teeth, but as the YGE has active free wheeling, I will see!

If some of you are intested in the mod or if you have some input, please let me know, I will put some update then!

Is it me or this time the ground was higher than last time??
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12-03-2012 03:44 PM  7 years ago
Sky Dancer

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Bryan, Texas

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That sounds like a fun project....

I also run the 4525-520 motor but on 12S lipos and it's has very high rpm with 100% throttle. A little too fast for my comfort.

I'm thinking the 520 might be too hot for a 14S setup.

Have you used this combo before? If so, what head speed did you run?

Don C
Keep up your rotor speed !
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12-04-2012 01:24 AM  7 years ago
BlakeMcBrayer

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Georgetown, Ky

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13 tooth math:

Result for calculation:
Estimated lowest voltage during flight: 48,72
Lowest RPM (due to voltage and efficiency) : 2280

For + performance, keep req. RPM below: 2360
For target performance, keep req. RPM below: 2454
For - performance, keep req. RPM below: 2525

12 tooth math:

Result for calculation:
Estimated lowest voltage during flight: 48,72
Lowest RPM (due to voltage and efficiency) : 2104

For + performance, keep req. RPM below: 2178
For target performance, keep req. RPM below: 2265
For - performance, keep req. RPM below: 2330

11 tooth math: (if helical you will have to get the Align 11T helical pinion gear. It's the only helical 11 tooth that I know of.)

Result for calculation:
Estimated lowest voltage during flight: 48,72
Lowest RPM (due to voltage and efficiency) : 2104

For + performance, keep req. RPM below: 2178
For target performance, keep req. RPM below: 2265
For - performance, keep req. RPM below: 2330
Don't come off the throttle untill you see your GOD!
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12-04-2012 02:09 AM  7 years ago
Ejeremy

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Bourbonnais,IL

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Have you tried running 14s on the Scorpion 4525 520kv? This is a 12s motor.

Jeremy
Team Futaba
Team Thunder Tiger
Team Radix
VP Powermaster Fuels
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01-29-2013 04:04 AM  7 years ago
Freeskiken

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Edmonton, Alberta, Canada

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Cool project !! What Align 11 tooth helical pinion will work ?
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02-15-2013 12:54 AM  7 years ago
Tbird

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Indiana

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That motor along with most stock scorpions will work on 14 and even 16s stock.. Scorpion told me the problem is exceeding the bearing rpm rating over voltage.. I am running a 330kv on 16s soon to be rewound to 430kv
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03-02-2013 08:05 PM  7 years ago
maj

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united Kingdom

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4525 14s has been covered many times on different posts and its fine. Just observe the max 24,000rpm limit.

I had a 14s Ballistic with Pyro 700/450 straight cut gear and it was brilliant. I used 2600lipos and it came in at 9.9lbs rtf.due to the power/weight it would yield 4:30 mins of 3d flight. I modded the sliding tray carriers (removed some off the font) to allow 1 6s pack mounted on top and a 6&2 underneath all the way forwards to achieve c of g.

Best all round 90 elec ive owned and that's most. Only sold as my ENV 120 turned out great and flies longer.

MJ
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