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Old Oct 13, 2001, 10:52 AM
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DaveG's Avatar
Houston, TX, US
Joined Jun 2000
1,652 Posts
Herr Piper J-3 Cub Park Flyer

I'm getting ready to build the Herr Cub Park Flyer. The instructions recommend the 7 cell 270 mAH NiCAD and the 7 cell 720mAH NiMH pack. Just wondering if anyone on the Zone is flying this little Cub and what battery pack they're using. I'd like to set the Cub up so it'll be a gentle flyer but handle a little more wind than my GWS Tiger Moth.

Dave G.
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Old Oct 13, 2001, 11:45 AM
Space Coast USA
hoppy's Avatar
Space Coast
Joined Oct 2000
20,912 Posts
I think you would be happier with either the M100, MMG-1(hornet motor/gearbox) or a geared 280 (MJbox). The direct drive works but power is not a strong point. The M100 will fly nicely with an 8 cell 2/3AAA 320 NiMH pack. The hornet with a 7 cell 720mah NiMH pack, and the 280 with an 7 or 8 cell 720mah NiMH pack. You won't need full power with any of these combos.
I like either the M100 or MMG-1 because they spin a 7" prop instead of one of those helicopter blades. The M100 motor lasts longer but the replacement motors for the MMG-1 cost only a $1.

But then, you can always try the direct and upgrade if you want more zip. I used the 720mah direct drive 280 with my Herr minisport. It gives a scalelike flying speed.

hoppy
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Old Oct 13, 2001, 03:40 PM
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Canada, QC, Gatineau
Joined Jan 2001
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I've just finished making and flying a foamie with direct drive 280, a Gunther prop and 7*270 NiCd. Spec's are pretty close to the Cub, weighs in a 10 0z. I'm getting about 4 minutes, pretty much at full throttle just to keep it in the air. I think this power set up works fine with very light weight loading. I believe there's a world of difference in performance between 6 and 9 oz/sq.ft. with this motor as spec'd on Herr's web site. Keep it lite!
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Old Oct 13, 2001, 09:38 PM
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DaveG's Avatar
Houston, TX, US
Joined Jun 2000
1,652 Posts
Thanks, Hoppy and Pierre. I've had my eye on the M100 and it with an 8 cell 320 mah NiMH sounds like a sweet package for the little Cub. Nice power, duration, and it should still keep the weight low. The extra power from the M100 should come in handy for dueling with a little wind.
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Old Feb 14, 2008, 06:15 AM
Dirt Brakes ARE Standard Eqpt.
djcarld's Avatar
United States, OR, Baker City
Joined Feb 2008
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Herr Piper Cub Park Flyer.

I use a direct drive Towerpro 2408-21T brushless motor with 18a ESC, and a 650mah NiMH battery in my Herr Air Boss. It flies really well on that combo, and has close to the same specs as your cub. Search "Herr Air Boss" on YouTube, and you'll see my plane fly. I use a 6x4 prop. I hope that helps you on your cub.

Carl
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