RunRyder - logo 10 with kontronik 600-17 or 600-18

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e-Mikado Logo 400 500 600 > logo 10 with kontronik 600-17 or 600-18

helifever
Senior Heliman
Location: BE-8750

just bought a logo 10

the engine will be the 600-17 or 600-18
batteries : lipo 4s4p or 5s4p

what will be the best combination for 3D flight and what pinion?

helifever

12-09-2003 Over year old.

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Saint728
Elite Veteran
Location: Sydney Australia Sponsored by: Quick UK

Well according to the RPM calculator sheet http://rceheli.com/ss/sheet It says the 600-18 motor, 4S4P LiPo's, and 14 tooth pinion will give you a head speed of 1906.24. The same set up with a 13 tooth will give you a head speed of 1770.08. The 600-17 motor, 4S4P LiPo's, and a 16 tooth pinion will give you a head speed of 1929.92. The same set up with a 15 tooth pinion will give you a head speed of 1809.3. They both will do hard 3D, but I'm not sure which combination will give you the longest flight times?

Take Care,
Cheers, Patrick

12-10-2003 Over year old.

HOMEPAGE

JKos
Elite Veteran
Location: City of California in the state of Maryland

Certainly someone will respond who has had those motors and tried LiPos; but, in the mean time, I plugged some number into K.C. Power System Comparison spreadsheet. Here are the inputs/results:

Desired/Fixed head speed: 1950 RPM

600-17, 4S4P, 16.74 tooth, 306 W max output
600-17, 5S4P, 13.00 tooth, 1338 W max output
600-18, 4S4P, 15.02 tooth, 443 W max output
600-18, 5S4P, 11.71 tooth, 1702 W max output

Looks like the 600-17 with a 13-tooth pinion and a 5S4P would be the most appropriate. In the fixed headspeed mode of the spreadsheet, it calculates the required pinion size; that's why you see odd numbers in my results. Let's see what others have to say.

- John

12-10-2003 Over year old.

JKos
Elite Veteran
Location: City of California in the state of Maryland

While the RPM calculator or the like will give you a decent indication of what to expect for a max head speed with a given battery/motor/pinion combo, it tells you nothing about the power capabilities of that combo.

Using K.C.'s spreadsheet which takes into account losses in the batteries, wiring, ESC, motor, and gear train to analyze the combos Saint728 gives, I get the following.

Using a TP 4S4P-8000 battery pack and allowing the head speed to drop a maximum of 150 RPM for each setup and specifying 350 W for hover power...

Fun 600-17
16-tooth: 1864 RPM at hover, 621 W max at 1714 RPM, 50.2 A peak
15-tooth: 1747 RPM at hover, 639 W max at 1597 RPM, 51.9 A peak

Fun 600-18
14-tooth: 1818 RPM at hover, 667 W max at 1668 RPM, 53.5 A peak
13-tooth: 1688 RPM at hover, 689 W max at 1538 RPM, 55.6 A peak

Now, with a 5S4P pack...

Fun 600-17
13-tooth: 1950 RPM at hover, 771 W max at 1800 RPM, 48.3 A peak

Fun 600-18
12-tooth: 1998 RPM at hover, 813 W max at 1848 RPM, 47.7 A peak

Maybe that is more useful info than what I first posted above. Max power is dependent on how much you are willing to allow the head speed to drop. Let me know if you would like a different amount (or percentage) of drop.

- John

12-10-2003 Over year old.

Saint728
Elite Veteran
Location: Sydney Australia Sponsored by: Quick UK

Hey John, can you figure out what my motor, battery and pinion will do using K.C.'s spreadsheet? I have a Hacker C50-11L and wanted to use a 4S4P or 3S4P LiPo battery and the appropriate pinion gear to get the most power but not over heat my motor. Everyone says my motor is too hot to use LiPo's with or it will draw too much current.

Take Care,
Cheers, Patrick

12-10-2003 Over year old.

HOMEPAGE

Reesy
Key Veteran
Location: In the doghouse ... Nottingham UK

Choose you batt config first
4S4P on a 600-17 was hopeless
5S4P will probably cook a 600-18 in short order.

I'd go 5S3P with 600-17 on 13 pinion
or 4S4P with 600-18 and 13 pinion

Ting Tong
.... ...... ...from Tooting

12-10-2003 Over year old.

helifever
Senior Heliman
Location: BE-8750

thx

anyone else flying already one of these combinations?

helifever

12-12-2003 Over year old.

HOMEPAGE

helifever
Senior Heliman
Location: BE-8750

anyone flying the 600-17 or 18 with lipos?

helifever

12-20-2003 Over year old.

HOMEPAGE

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