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Old Oct 31, 2014, 04:54 PM
fastfwd is offline
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Anyone bought the BFG from hobby king ? It most certainly is the diamond 2500 re branded is it not ?
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Old Apr 13, 2015, 03:39 PM
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In case somebody might be interested: I'm doing a twin motor conversion and have started a build thread here.

I won't be using the original motor anymore, so if anybody needs it, it will go for shipping cost or best offer
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Old Apr 15, 2015, 05:56 PM
RoryG is offline
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Quote:
Originally Posted by mike_o View Post
In case somebody might be interested: I'm doing a twin motor conversion and have started a build thread here.

I won't be using the original motor anymore, so if anybody needs it, it will go for shipping cost or best offer
Looks like an interesting conversion, I'll follow your build log with interest. Typical, I just bought a replacement motor for mine, not even flown with it yet!

Cheers,

Rory
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Old Aug 05, 2015, 01:04 PM
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Howdy. I just bought a BFG 2600, the hobbyking clone, not because I wanted something cheaper (I didn't), but because I simply couldn't buy the Diamond 2500 anywhere anymore.

My impressions:
1) the servos it came with are so bad that I wouldn't even want to fly once with them. Two in the wings were already half broken and only moved in one direction, and stalled in the other direction

2) I've read the ESC is garbage, so I'll be replacing it, that's fine.

3) now, the motor. It's supposed to be an A3720 700kv (there are no markings on the motor, so I can't verify). It has a 5mm shaft for what it's worth.
I I have no idea how many amps the motor can take (I'm using a 75A ESC), and whether I can safely use a bigger prop. Right now I have the stock 13.5x7 prop

It seems to be the same motor than the original Diamond 2500, so can others comment on it?
What are its specs?
Is it safe/reliable, or should I throw it away too?

Is there another recommended powerful motor that can be swapped in?

Thanks, Marc
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Old Aug 05, 2015, 05:00 PM
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Marc, your finds just confirm what others have experienced. I got mine second hand after a fellow rc pilot crashed it twice in two flights because of servo and ESC malfunction. The plane almost went up in flames in the second crash, so I got it for next to nothing.

It flies well with the stock prop even on 3S and is said to mildly aerobatic on 4S, so I doubt you'll gain anything by prop swap.

The motor seems as good an any of the normal HK motors, so I'd suggest you to trust it and focus on servo and ESC replacement.
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Old Aug 06, 2015, 11:25 AM
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I'm using a stock motor and stock sized prop on 4S, and find it perfectly adequate. In one of my crashes, I bent the motor shaft. I made a new shaft with some 5mm drill rod, and it's been working fine since. I had to hit the ground pretty hard to bend the shaft too.
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