Seagull extra 260 180 Motor/engine help?

Joker 53150

Mmmmmmm, balsa.
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Mytmerc83

New member
Thanks Joker (like the plane)and frequent crasher, installed elevator servos and the castle cc bec pro. Would put pictures up but internet is acting up again. I think I'm going to like gas, I sure like asking to see the engine every time I go to the lhs. Going to run an 1800mah 2s for RX and 3200mah 2s for the engine. Any thoughts? Does the "C" rating matter? Thanks
 
"C" rating does matter. The "c" is referring to discharge. Take for example, if you have a 1000 mah battery, rated at 20C that means you can continuously draw 20(the c rating)X 1(amp hour rating) so you
Could draw 20 amps without harming the battery. Most battery's will have a slightly higher burst rating that will tolerate higher draw for less then 10 seconds. If you know your draw, it you can do the math. Do you know the draw? If that doesn't make sense, I can explain it better, or google it.
 
I doubt your servos or ignition will pull hard enough to challenge the C rating of the battery. Just about any LiPo or LiFe will do it. C rating matters a lot more when you are spinning a motor.
 

Mytmerc83

New member
I understand "C" rating when running electric was just unclear if it mattered with this set up. Should have been more clear. The batteries I have found are either 30c or 50c I know which one I would buy if it was going in an electric!!! Thanks guys!! Two more servos to install, fuel system to build and engine to buy. Come on April!!!
 
Yes, any 2s battery should be fine, I would use a regular Lipo, not one dedicated for RX use, as those have lower C ratings, and a higher price.
 

Mytmerc83

New member
Yup I can get a new 1800mah 2s 35c lipo for $16 a lhs that's what I'm going to use(for RX). The cc bec pro comes stock on 4.8volts and to change it you need to buy the castle link connector for $26, that sucks!!! More money, more money!!!!
 
I would avoid castle just for that! They just try to sucker you out of your money every chance instead of just making a good product! It's not like castle is cheap anyway! My UBEC in my quad has a plug to switch from 5 to 6 volt.
 

Mytmerc83

New member
I have one like that too think it's a sky rc unit but it's only max 5amps and 5 digital servos moving big surfaces worries me a little with only 5amp max. The castle is a 20amp. Will buy the link and then I have it. I do agree thought should have someway of changing the bec without buying more crap.
 

Joker 53150

Mmmmmmm, balsa.
Mentor
I doubt your servos or ignition will pull hard enough to challenge the C rating of the battery. Just about any LiPo or LiFe will do it. C rating matters a lot more when you are spinning a motor.

Agreed. Just about any C rating is plenty for this application.
 

Mytmerc83

New member

Finally video of my buddies Yak just before he crashed it. Sorry for the language!!
 
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Mytmerc83

New member
He said it's repairable, only one crack in the canopy. He figured two it three days and it will be flying again. Told him on flight before last he had a fuel/fuel line issue but he wanted one more flight!!!
 

Mytmerc83

New member
image.jpg image.jpg
Some pictures of the aftermath!!
 

BobK

Banned
Ouch! That even hurts my feelings a bit and it isn't even my airplane, could be worse though.