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Piper J-3 Cub by CMPRO e-conversion?

Old 11-15-2008, 06:46 PM
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fazerdreamer
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Question Piper J-3 Cub by CMPRO e-conversion?

Hi there!Just another newbie in your forum but i hope not a new at the e-planes.!A few weeks ago i ordered this plane Piper J-3 Cub by CMPro 2.310wingspan,from a local hobby shop here in Greece.Instantly i decided how this thing of 4-5Kgr could stand in the air with dignity??I have awlready searched for static calculations about what motor-Kv,ESC,prop e.t.c....and i decided to look over this e-shop hobbycity.com to match a set up.I confess that i am a little bit confused because this is my first attempt to build a BIG plane through electric set up..

All your advises will be great apreciated!

Stefanos.
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Old 11-16-2008, 04:12 PM
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Is it so rare?..Is it too big?..nobody knows anything about this plane?...
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Old 01-23-2010, 06:43 AM
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ecapxela321
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first you have to find out how much the plane will weigh when completed, including an estimation for battery and motor..im sorry how big is the plane? wingspan maybe in inches?

i am currently building a carlgoldberg cub and converting it to electric. it was a 76 in wingspan and will weigh about 5 1/2 pounds when completed. i will be using a turnigy motor that is recomended for planes up too ten pounds with an 80 amp speed controller and a 4 cell lipo..i am using a great planes motor mount for large motors that will bolt onto the firewall just like the original gas motor mounts..

hope this helps
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Old 01-23-2010, 06:50 AM
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sorry just saw the 4-5 kgs so maybe the same motor i am using will be sufficient but turnigy also offers a motor for planes up to 15 pounds as well was 20..if you have money coming out of your ears an axi motor may offer better performance..i would guess you will need a 5 or 6 cell lipo maybe two 3-cells running parallel..and a 15 or 16 inch prop. when you decide on a motor you can use a calculator to determine different battery and propeller possabilities.
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