Giant Scale Brushless Power

[caribou]

One issue I've seen and heard on the Hacker 60 series is the c clip that holds the motor together. The shaft itself is 8mm, the clip cut reduces that to about 7mm. Ther have been a few motors that snapped the shaft off right at the clip. It appears it only applies to extreme 3D flying, and violent manuveurs. At the recommended 3700watt max Hacker states, maybe it not so much an issue but most users push them well beyond that. I understand that they use a collet type prop adapter as well, something I have little faith in above 6S systems.
Most of the other 50cc class motors use a 10mm shaft and the standard 4 bolt gas pattern adapter, allowing a true centre and solid 4 or 5 mm holding bolts. Much safer at 4-5000watts you guys will want to run.
I'm running a Suppo 7035-8 (190kv) on 12S/5000/40C, spinning a 20 x 10 x 3 blade Mejzlick CF prop for 4600w @ 103A. It uses the 4 bolt 4 mm with a 12mm centre shaft. Noticibly heavier (very beefy motor, huge bearings) than a Hacker 60, but noticbly cheaper too!! 22 flights to date, absolutely no issues. Great Hobbies is now carrying the Suppo line. The 7035 sell s for $139 stateside, who knows what they'd ask for it here, but a 4130-430 was $69 at GH, 59 at Altitude Hobbies in US. fwiw caribou

[Cosmith]

One issue I've seen and heard on the Hacker 60 series is the c clip that holds the motor together. The shaft itself is 8mm, the clip cut reduces that to about 7mm. Ther have been a few motors that snapped the shaft off right at the clip. It appears it only applies to extreme 3D flying, and violent manuveurs. At the recommended 3700watt max Hacker states, maybe it not so much an issue but most users push them well beyond that. I understand that they use a collet type prop adapter as well, something I have little faith in above 6S systems.
Most of the other 50cc class motors use a 10mm shaft and the standard 4 bolt gas pattern adapter, allowing a true centre and solid 4 or 5 mm holding bolts. Much safer at 4-5000watts you guys will want to run.
I'm running a Suppo 7035-8 (190kv) on 12S/5000/40C, spinning a 20 x 10 x 3 blade Mejzlick CF prop for 4600w @ 103A. It uses the 4 bolt 4 mm with a 12mm centre shaft. Noticibly heavier (very beefy motor, huge bearings) than a Hacker 60, but noticbly cheaper too!! 22 flights to date, absolutely no issues. Great Hobbies is now carrying the Suppo line. The 7035 sell s for $139 stateside, who knows what they'd ask for it here, but a 4130-430 was $69 at GH, 59 at Altitude Hobbies in US. fwiw caribou

Great info Douglas.

Another one that I clued onto was the Dualsky, as seen here: http://www.dualsky.com/motor/GA_Series.shtml Any thoughts on this?

It's about 110g lighter than the Suppo and 290g heavier than the Hacker...however it doesn't need the special mount like the Hacker, bolts right up to standoffs. The Hacker is very proven but it scares me that it needs support front and back, that it has such a narrow shaft with the potential c-clip issue, and that Hacker underrates it so much.

[caribou]

One thing I've learned is that heavier motors handle heat better. If you take one motor at 1200gr, and another at 1000, the lighter motor will absorb more heat when running both at identical amp loads.
Realize that a strong DA50 turning 6700rpm makes 5.4 hp (4028 watts), these motors can easily outperform the DA. They can turn larger props with more pitch than the gassers. Both the Dualsky and the Suppo are supposed to be capable of 6000watts (8.04hp). IMO that would be pushing them pretty hard, but for bursts of power in 3D, probably fine. Use a wattmeter, and be careful of prop sizes, 1" can make amp loads climb at lot. I ran a 21/10/3 blade PMT CF prop on 12S on the Suppo, it showed 5238watts @117a, a 20/10/3 blade Mejzlik produced 4600watts @ 103a, both ran on 2- 6S/5000/40C Zippys. fwiw caribou

[Cosmith]

Just finished a brushless conversion on my 79" Aeroworks 35cc Extra 260 Freestyle. Should weigh around 11 - 12lbs, haven't weighed it.

Here's the setup:
Jeti Mezon 130 ESC
Motrolfly DM-4330 380Kv
6S 5000mah Lipos

Tested it with two different props.
20 x 7 Carbon Falcon (6900rpm, 1900w, 90A)
20 x 10 Wood Falcon E (6250rpm, 2400w, 111A)

All numbers approximate of course, they were bouncing around while I was reading them. Peak watts was actually around 2600 on the 20 x 10 when the lipo was fresh off the charger, but it was able to hold 2400 give or take. Really impressed, the 20 x 7 was last mounted on an EME 35 and turning around 7100rpm. So, slightly lower top end but the near perfect and linear mid range will make up for any small loss at the top end. 200 watts per pound should be very adequate, should I feel I need more there are always HV lipos!

Does anybody running the Hacker A60-6xs on 6S have any numbers? I'm curious how the Motrolfly stacks up.

What kind of runtime are you getting from a 5000mah lipo?

[Wheels]

Anyone have any experience with the YEP series hobbyking speed controls? Putting together an Aeroworks 100cc edge with a hacker A100 and a YEP 180, to run on 14s... just wondering whether the SC's are known to stand up to rated current or if they're rated as... optimistically... as some other HK products.

[CCRC]

Got about 15 flights on my 87'' Edge, Power is awesome! Rips a XAOR 25x10 electric prop with ease. Not sure the weight, but flight time is 6-7min with 2x5000mA

[CCRC]

Anyone have any experience with the YEP series hobbyking speed controls? Putting together an Aeroworks 100cc edge with a hacker A100 and a YEP 180, to run on 14s... just wondering whether the SC's are known to stand up to rated current or if they're rated as... optimistically... as some other HK products.

They are a YGE clone. YGE is great, that's what I use in all my heli's. I've heard the YEP works good.

[JoeT]

I've been using a YEP 100 amp on 6s 4000 mah Batts for 2 years. Very easy to program and I use the f3a brake also to slow down the plane for Landing and downlines.

Smooth as silk, no complaints. My friend prefers the 120AMP HV esc over the castle esc. His motor fly powered beast runs cooler and quieter using the YEP.

[Wheels]

They are a YGE clone. YGE is great, that's what I use in all my heli's. I've heard the YEP works good.

Yeah it was the YGE connection that made me willing to give it a shot, in spite of having another large HK control burn up at rated current, I'll set it up to run at rated current and see how it goes... didn't expect to get this one flying for this spring but it's looking good for a test flight in the next few weeks.

[Cosmith]

Got about 15 flights on my 87'' Edge, Power is awesome! Rips a XAOR 25x10 electric prop with ease. Not sure the weight, but flight time is 6-7min with 2x5000mA

Nice plane! My Vertigo is getting a 12s setup. Just stole the ESC for the Extra, still has the Dualsky GA6000.8 mounted.

What are you running for ESC and motor? Where are you getting Lipos?