Hacker B50 7XL replacement

[teddyboy]

Gentlemen, I have a need to either find a Hacker B50 7XL motor or a replacement unit. Does anyone have a suggestion replacement model number? Thank you

[Fluid]

You can use a Feigao 7XL, it has a slightly higher Kv but not enough to worry about. The Feigao is not built to the quality of a Hacker but they still run pretty well. I set some P-Hydro SAW records with them several years ago.

Alternately, a Leopard 3674/2200 Kv is similar in power. It will spin a slightly larger prop slightly slower than the 7XL.


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[teddyboy]

Hacker B50 7XL

Do you think this is a similar motor for use in my rigger?

Product ID: fei-540XL
Feigao 540XL "Extra Long" Sized Brushless Motor

(Enlarge)

If your a sport boater or top notch racer on a budget, the Feigao motor is the Brushless motor for you! Feigao high performance brushless motors have the rpm and motor efficiency similar to that of Brushless motors like Hacker that are 2 to 4 times higher in Price!

New competition winds!
5xl 3,324 KV

This 540XL "Extra Long" Sized Feigao Motor is 75mm in Length.
These are the same motors as the "Nemesis Blue"
Motors being sold on other sites. Only our motor is anodized Purple.

Click for Feiago Motor Chart

Motor Specs:
6-24 NiMh or 2s to 6s Lipo cells in a medium to large sized mono or hydro.
1000 Watts Maximum with proper cooling.
35.8mm dia x 75mm long
5mm Output Shaft. Use 5mm Couplers.
372 grams
Up to 1000 watts of power with proper cooling.
50,000 rpm bearings!
Aluminum Purple Anodized Casing
2-Pole Neo Magnets & Compressed Windings.
Mounting screw holes are 25mm apart on center.
3mm mounting screws.

Water Cooling

We suggest using a high quality silicon water jacket or
metal water jacket to cool your high performance motor.
Either the Gundert 500 or 600 Silicon jackets or the OSE
Metal water jacket shown below.



Recommended RPM:
In rc boats we recommend the following
Between 23,000 to 26,000 total rpm for sport boats.
Between 26,000 to 30,000 total rpm for race boats.
Over 30,000 rpm for quick straight line racing.

Click for Motor Calculators & Chart

[sailr]

I have a Hacker B50 with water jacket I would sell. Not sure of the L or XL, etc. right now. Will check my shop tomorrow and let you know.

[Fluid]

Do you think this is a similar motor for use in my rigger?

No it is not. The Kv is 'way too high for 4S LiPos except for SAW racing. I used a Hacker 5XL to set a long standing SAW record on 12 NiMH cells but it was hard on the equipment, definitely not a sport or oval setup. You will want a 7XL.


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[longballlumber]

Gentlemen, I have a need to either find a Hacker B50 7XL motor or a replacement unit. Does anyone have a suggestion replacement model number? Thank you

I have a genuine Hacker 7XL that I personally sent to hacker and paid to have new rotor and bearings installed. It has only been run 3-4 times since the new rotor and bearings.

Let me know if you’re interested. It's the closest thing to a new hacker your going to get with out the new price tag.

Thanks,
Mike

[teddyboy]

Hacker B50 7XL

Mike, let me know, I am interested. Thanks Ted

[longballlumber]

Hi Ted,

You have a PM.