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Hacker 30 8XL VS. 30 10XL??
What is the difference between these two motors? Hacker 30 8XL VS. 30 10XL?? Will the 8Xl pull a Sebart Sukhoi 30 ok? They suggest a 10XL.
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Re: Hacker 30 8XL VS. 30 10XL??
Bax,
The 10XL is the same frame with kV = 900 rpm/volt, the 8XL has a kV of 1100 rpm/volt. Both are good choices, and I would select the A30-8XL. It will turn a bit faster, and has a higher amp capacity (5 amps). I would prop it for 40-42 amps WOT, so maybe an APC 13x6.5 would be about right. Need around 450-480 watts to make that size bird work well. Use a Wattmeter to dial it in with the right prop on 3S lipo. The Hacker is a good motor, and you can push over the spec current a bit without fear, just keep WOT runs short. |
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Re: Hacker 30 8XL VS. 30 10XL??
I got a 850rpm GP rimfire in mine and wish it would turn faster. If I replace the Rimfire I'll get the 8XL, 1150 rpm/volt Hacker. Sebarts instruction book calls for a Hacker 10XL and a 15x7 prop. I'd be guessing the 8XL would be happy with a 14x7. I'm looking for a 14x8 Wood e-prop to get me some more speed with the Rimfire.
Another point to concider, I lost my first plane after about 10 flights when the HS 65MG servo died. My new plane has twin Futaba 3156 elevator servos, with rudder on a Futaba 3102 with pull pull cables. Now everything but rudder is redundant. Here's Hackers site...http://www.hackerbrushless.com/ Q for Tmaniac, Some places list the Hacker 30-10XL as a 60 ampish 800 watt motor. Chief, and Other sites have it listed as a 45 ish amp motor. Do you have a reason to keep it proped to a 42 amp draw? Hacker is so conservitive with their specs. it's dificult to figure out what they require. |
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Re: Hacker 30 8XL VS. 30 10XL??
Follow up. This am I put a couple flights on the plane. I also hooked up the watt meter. Thr 35 48 850 Rimfire pulled 38 burst and 35 constant amps and about 412 watts with the Xoar 14x7 prop. I had a Hacker a 30 12L in it for a while and it pulled 42 amps and I think 460 watts swinging a 13x7 Xoar. The 12L is much smaller, yet drew more power, yet didn't fly the plane nearly as easily as the Rimfire does. So in some convoluted way that e power is keeping some, if not all it's secrets from me; Tmaniac is right and you will be getting good performance with an amp draw around 42 amps.
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Re: Hacker 30 8XL VS. 30 10XL??
Quote:
I am not the greatest 3d pilot (yet), so I like a ton of punch when I need to get out of trouble. This philosophy works well for me, and I generally achieve a very light build, with low wing loading and big power when you need it. Couple that with a small mAH, high-C rated Lipo, you're going to get great performance. Basically, pushing a good quality motor beyond ratings will allow you to step down a frame size with a considerable weight savings. I seem to genrally still get 10 minute flight times too, which is plenty for the average guy. IMHO, if you are getting over 12 minutes of flight time, or running a >quality< motor at or below it's max rating, you are too heavy in your build. |
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