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Sep 02, 2009, 06:14 AM
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steveburns's Avatar
Discussion

Hacker B50 6L vs. FAI B50 6L, What’s the difference?


Anyone know what the difference is between the Hacker B50 6L and the Hacker FAI B50 6L other than the carbon can and just over £100 in price?
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Sep 02, 2009, 02:05 PM
Registered User
WimH's Avatar
To the best of my knowledge, none...Could be that the FAI has better protection for high RPM?
Sep 02, 2009, 02:26 PM
The Kid
Thekid3418's Avatar
I thought i read once that the "FAI" motors were the cream-of-the-crop. Picked for exceptionally low resistance when compared to its similarly wound counterparts, etc. But I could easily be mistaken...
Sep 02, 2009, 03:02 PM
Registered User
Darron's Avatar
Quote:
Originally Posted by steveburns
Anyone know what the difference is between the Hacker B50 6L and the Hacker FAI B50 6L other than the carbon can and just over £100 in price?
According to Hacker just weight.
Sep 02, 2009, 04:02 PM
Needs to do 52 legs !!
jjmouris's Avatar
Bearings?!

Magnet strenght?!
Sep 02, 2009, 04:08 PM
Registered User
la528it's Avatar
Someone on here did a side-by-side once upon a time. If I recall correctly, the amp draw on the fai motor was over 10% less than that of the standard motor, though I couldn't tell you how hacker attained the lower draw (he did mention that they had the same kv though, so it wasn't simply less revs)
Sep 03, 2009, 10:06 AM
Needs to do 52 legs !!
jjmouris's Avatar
10% less current would be equal to 10% less power for what you seem to say was the same RPM of the prop?

That would be saying it's 10% more efficient....... i doubt that is even possible.

If it was just the KV that was the same, if some of the other parameters changed you would see less RPM of the prop and this could be equal to the drop in power consumed.

I also know that one motor to the next will use more or less power on the same setup.

So basically this is not enough information to tell anything.
Sep 03, 2009, 11:54 AM
Registered User
la528it's Avatar
Quote:
Originally Posted by jjmouris
10% less current would be equal to 10% less power for what you seem to say was the same RPM of the prop?

That would be saying it's 10% more efficient....... i doubt that is even possible.

If it was just the KV that was the same, if some of the other parameters changed you would see less RPM of the prop and this could be equal to the drop in power consumed.

I also know that one motor to the next will use more or less power on the same setup.

So basically this is not enough information to tell anything.

WHAT?!? One observation point is insufficient

I'm with you Joseph, but this is not a conclusion, only a single data point. Now that the curtain has fallen, you would think hacker would be more straightforward discussing the benefits of their fai motors; e.g. kv
Sep 03, 2009, 12:00 PM
Registered User
steveburns's Avatar
Quote:
you would think hacker would be more straightforward discussing the benefits of their fai motors; e.g. kv
I have sent them a email but they are on holiday this week and it's always nice if you can find someone who has practical experience of the subject.
Sep 03, 2009, 12:12 PM
Registered User
Darron's Avatar
Hacker's response verbatim from the 27/4/09.

"the difference between both motors is only the housing. The FAI Version has a Carbon - housing. The normal version has a housing made of aluminium.
Therefore the FAI version is more lightweight. The price is also different. The FAI-version is more expensive."


Darron

*edit - on a B40 the FAI version is 10g lighter, not much but meant alot in the pre-LiPo era.
Sep 03, 2009, 12:20 PM
Registered User
steveburns's Avatar
Thanks Darron,
I was hoping that was the case.

Steve
Sep 03, 2009, 12:38 PM
Registered User
Darron's Avatar
Quote:
Originally Posted by Darron

*edit - on a B40 the FAI version is 10g lighter, not much but meant alot in the pre-LiPo era.
I guess that's £10 per gram - They're in the wrong business .

I see people still buy them thinking that there is something special about the FAI version, then add nose weight.

I also suspect that the ali casing is better at dissipating heat and that Carbon/Epoxy is a good insulator.

Anyone want to buy my B40 11L FAI?
Sep 03, 2009, 01:15 PM
Wind Happens
bigslopegrin's Avatar
the dif between a B50 and carbon vers. is 13 grams - otherwise identical.
Nov 17, 2010, 05:11 AM
Needs to do 52 legs !!
jjmouris's Avatar
Quote:
Originally Posted by Darron View Post
Hacker's response verbatim from the 27/4/09.

"the difference between both motors is only the housing. The FAI Version has a Carbon - housing. The normal version has a housing made of aluminium.
Therefore the FAI version is more lightweight. The price is also different. The FAI-version is more expensive."
Just got told exactly the same on the phone.

Don't think i will loose sleep over those few grams.

Joe
Nov 17, 2010, 03:45 PM
Registered User
If you pile it in it is easier to repair the FAI one one with epoxy and chopped glass fibre. Done it with a replacement rear plate. Don't know how you would fix a concertina-ed alu casing? There was a sugestion at one time that the FAI used higher spec Neodimium? hence lower rpm? But maybe not now.


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