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Old Feb 01, 2016, 09:12 PM
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My flying buddy and mentor think this power setup is just too much for Habu 2, with 130 and much heavier battery, just too heavy for much other than great top end. He's trying to talk me into yanking motor and putting into a larger plane. My 6S battery weighs 483 grams, have a bunch of 5S just slightly lighter, and getting into 6S 3300 weigh around 560 grams, almost 3oz more. Sure seems to echo the sentiment here.

Tonite I'll see how where cg and battery size fall, habu is built, color added bound and ready to go. Most likely will do maiden at 80% max and get the feel. Not sure I feel like popping $ for another new edf, I did just get a used Dr. Mad Thrust Series Motor B2970 - 2600kv for 70 mm EDF / 6s, but need new blades, some chipping noted, HK has replacements. Maybe this is better for Habu, but really thing the WeMoTec/HET is in another league.

Now if I can maintain 80% and resist punching it..... And the $99 Habu bare airframe is a STEAL!!
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Old Feb 02, 2016, 12:16 AM
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Just go for it! I would stay 6S, when I ran mine on 5S it did not make sense (weight/power/speed). But on 6S it came alive!!
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Old Feb 02, 2016, 12:21 AM
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Easy decision, 1/2" tail heavy, so grabbing a 3300 65c or 3700 45c tomorrow before maiden. Good thing I have been selling combat wings, will move a couple more to fund this fun
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Old Feb 02, 2016, 12:53 AM
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Quote:
Originally Posted by Rdimand View Post
Easy decision, 1/2" tail heavy, so grabbing a 3300 65c or 3700 45c tomorrow before maiden. Good thing I have been selling combat wings, will move a couple more to fund this fun
You did say you wanted fast. As discussed, it takes more power for EDFs than a prop.
I would suggest the 45C, 3700mAh. Those Gens Ace packs I used are HUGE. There are lipos out there now that pack the same punch in a smaller lighter package.

Nice Habu 2, Great visibility.
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Old Feb 02, 2016, 01:57 AM
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Many thanks Gary. Looks like the Pulse 3700 45C wins, I am a huge Pulse fan, hope it fits without too much surgery. Should balance perfectly. Can pick up tomorrow.

The 2700 6S will find it's home in one of my large Combat Wings, already has 130A and Scorpion 3226, a perfect match.

Loved the Habu 2 build from bare airframe, if I was to do again, what would you recommend for a more lightweight setup, but still some zip?? Think I want 2 of these, perfect size and price, 2nd build will be even easier. Also, I have lots of 5S 3000 from my wings.
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Old Feb 02, 2016, 02:33 AM
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Not sure if I read that some folks may be running the stock motor on 5s, Maybe with a heat sink. You might do a search on that.
The stock EDF uses a 3200kv motor on 4s. If you want any more speed on 4s, you'll need a higher kv motor. Anything higher than stock is always gonna pull more amps.
For a light weight setup with the better sounding Wemo EVO. The the HET 2W-20 (3400kv) is 821W @ 56A (about 60A in the jet).
This would certainly be a nice light, aerobatic, floaty set up. It wouldn't even need the flap mod.
Stock speed is 82mph. This might get ya 90+mph.
Battery would be 2600-3200Mah.


There are plenty of power options out there. Just match the thrust/ amps/weight to what your priorities are.

Here's the Wemotec data chart with many of the options for the EVO fan.
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Old Today, 12:03 PM
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Maiden aborted. While doing taxiing to get rudder - nose wheel in alignment, sucked a small rock into edf, that doesn't go well. Only about 3-4 mph, found this being the stopped jet. Have a backup while I wait for new blades (Thanks efflux) and balance the setup. Day wasn't totally lost, had a great night of combat!

Hope to try again this weekend.
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