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Fun fly
- THE BLACKBIRD
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I have a motor and ESC from when i was building the B36 years ago, seems now like a different life time
The motor is a 4Max PO-3541-1070and the ESC is a 4Max 4M-40Amp that was going to turn a 3 blade 10x5 prop bearing in mind that there would be 6 of them on the B36
Now i seem to have forgotten most of the little i knew about the dark art of electrics, what would be the output from this motor and what prop would be needed
Ill get started on the drawing, about a 48 1200mm wingspan to suit the balsa sizes i think would be best, my drawings are always done by if it looks right it could fly ok
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- Klipkopwildlife
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- Quorneng
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Probably because at 33A max continuous a bit more ESC "head room" is recommended.
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- Eric
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That's where the WATTMETER comes in - with that between the battery and the ESC you can see what the motor is really drawing at full chat with the prop fitted.
Myself, I'd go for a 60 amp ESC, for more 'headroom'. (I don't recall seeing any 50's). Most people go for about 25% more than they think they will need!
if you are calm and collected when all about you are going berserk - you've missed something important!
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- THE BLACKBIRD
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- Eric
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Anyway, if you have an ESC that is more powerful than you need, it can be used again in something else, later.
That's why I mentioned the WATTMETER. You can SEE how much power the motor and prop are using. With an i/c engine, you can hear and feel when the mixture in the carby is correct. You cannot see electricity.
As a p.s. added later - If you have a 40 amp ESC, and it is showing close to 40 amps consumption at full chat, it's an indication that your motor/prop combi needs more amps than the ESC can deliver!
if you are calm and collected when all about you are going berserk - you've missed something important!
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- Klipkopwildlife
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- THE BLACKBIRD
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- THE BLACKBIRD
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He never showed up but i got a bit done had a sort through what little balsa i had and the scrap box
Need to order balsa for it and piano wire, now BalSsa cabin dont have the balsa i want but do have the piano wire
Slec have the balsa i want but dont have the piano wire
SHEEESH
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- Klipkopwildlife
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- Eric
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if you are calm and collected when all about you are going berserk - you've missed something important!
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- THE BLACKBIRD
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- Flytilbroke
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- Not Tired, long retired "Bob"
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Martin was doing balsa deals among lots of other stuff.
Have a nice Day, unless I don't like you.
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- Klipkopwildlife
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- THE BLACKBIRD
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Then i doodled some lines on the paper for the tail feathers
Found some scrap 6mm and cut and dry fit to the doodles
At which point im out of scrap and things to do
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