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Old Sep 24, 2003, 08:44 AM
A man with too many toys
United States
Joined Feb 2001
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Phasor 30-3 needs a home

I have a Phasor 30-3 and Jeti controller left over from another project. I would like a nice aerobatic sport plane. I think that this motor is for 8-10 cells.

Any suggestions?
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Old Sep 24, 2003, 08:50 AM
A man with too many toys
United States
Joined Feb 2001
17,612 Posts
Just looked at the Vermont Belle 1300. Very nice looking!

Is it too large for my motor?
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Old Sep 24, 2003, 09:14 AM
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West of California Speedway, East of LaLa, North of Disneyland
Joined May 2001
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Phasor 30-3

I am currently flying my E3D on a Phasor 30/3 Direct Drive. It will go vertical on 10 cells at about 53 ounces AUW.

I also fly my Bandit in the same motor, but with a 2:1 gearbox (maximum gear ratio to prevent throwing magnets). It will go vertical, as well. I've flow this plane on 8 cells (lively performance) and on 10 cells at about 43 ounces (definitely flaunting the wild side).

When I bought the Jeti motor it was one of the lowest priced brushless. Now, however, there's a lot of competition at around 80 bucks!!!
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Old Sep 24, 2003, 09:15 AM
modest-master's Avatar
Palm Bay, FL, USA
Joined May 2001
1,236 Posts
Pretty XL

Check this baby:
Pretty XL
wingspan: 55"
empty weight: 14 oz.
With 30/3, 11x7, Lipo 7800 3A4P
almost unlimited vertical

www.EspritModel.com
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Old Sep 24, 2003, 09:53 AM
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Peachtree City, GA
Joined Aug 2000
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The ElectroStreak is another good choice. Mine flys very good on that motor and 10 CP1700's

Bobby
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Old Sep 25, 2003, 11:59 AM
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Oakland Ca. in an old warehouse, lots of room but no rooms...
Joined Sep 2002
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Hey now,
I've got that motor, love it. I've had it in a few planes now;

1) 50" lazy bee special, 10 cells, 10-6 prop, dd. Flew the wing off that plane (literaly) Knife edge, spins, you name it.

2) world models "happy fly" arf, flys just like it did with an O.S. fp25. now with 10 cells and an 11=7 apc-e prop.

3) still in the works Lanier extra 3.25, should be fun.

4) I have a friend who put one in one of the Global waco bipes (30 size arf) and it was a blast! A serious tumble bug...
Hope this helps...
RobII
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Old Sep 26, 2003, 06:27 AM
A man with too many toys
United States
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What is the current with 10-cells and a 10-6 prop?

What is the largest prop I can use with 10-cells?
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Old Sep 26, 2003, 10:59 AM
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Oakland Ca. in an old warehouse, lots of room but no rooms...
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Hey now,
The company says it can handle thirty amps. All of the tests I've read say it's happy past fourty.
On ten cells with a MA 10-6 prop I get 28.7 amps with a whatt meter, low thirties with an APC11-7.
RobII
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Old Sep 26, 2003, 11:02 AM
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Peachtree City, GA
Joined Aug 2000
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RC Man,
I'm with RobII. It can definately handle more than 30. I run an 11x6.5 or 11x7 folder on my ElectroStreak. I just don't run full throttle the whole flight.

Bobby
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Old Sep 26, 2003, 11:15 AM
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Oakland Ca. in an old warehouse, lots of room but no rooms...
Joined Sep 2002
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Hey now,
Why would you want or need to run full tilt through an entire pack? I take off at two thirds throttle, fly level at half or less.
It's only when I'm goin to go vertical like looping or more that a crank it up. However I have run this motor at full tilt with 10 cells and an 11-7 just to see what happened and it was barely warm after the flight. I doubt it would be a problem.
RobII
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Old Sep 26, 2003, 09:55 PM
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Kitchener, Ontario, Canada
Joined Jan 2001
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I have 2 of these motors.

I use one in a 3 3/4 lb Tempest Mk II, on 10 CP 2400's. It has excellent climb and speed using an 11 x 8 1/2 E APC. Static RPM is 8300.

I have another in my Sea Fury. I run it on 12 CP 1700's with a 10 x 8 Master Airscrew plasitc electric prop. About 10800 RPM right off charge, settling to 10000 even after about 15 seconds. BUT....I ran it with a Watt meter in place, and showed 650 W of power consumption at 55 A. This tells me that this is above the best efficiency range of this motor, as the Aveox virtual test stand tells me that this output is about 400 W. As you would expect, climb and speed are both "more than scale".

I limit my time at full throttle in the Sea Fury, as I am also running a Jeti 40 A controller, and don't want to push my luck. I am impressed at how well the motor/controller puts up with this deliberate abuse (it sounds so cool, I can't get myself to change it back to 10 cells/11 " prop, even though I could trim weight by 1/4 lb).

I do have excellent cooling in the Sea Fury, with the controller right in the air path from the cowling to the open canopy.

I run an AXI 2820-10 (very similar performance) in my Super Chipmunk on 10 CP 1700's. It swings the APC 11 X 8 1/2 at 8000 even, and pulls this airplane vertical to the point where I don't know when it stops. I took it straight up to 570 ft one day, but turned it around, as I could not see what it was doing any more. The Phasor has a bit more power, but weighs 2.2 ounces more, as well.

The 30-3 is a powerful motor that can perform at well above its rated current values. If overpowered and then throttled back, it gives fantastic efficiency (even my 55A Sea Fury can go about 7 minutes on 1700 mAh, when flown at normal Sea Fury speeds).

I think you could put the Phasor on 10 cells into anything from one of my little, fast planes (11 X 8 1/2), right up to a Sig Seniorita (12 x 6), and come up with a good flying airplane, with good duration, when flown at the correct speeds.



Ron Daniels
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Old Sep 27, 2003, 05:55 AM
A man with too many toys
United States
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WOW!

55A with a 30A motor. How hot does the motor get?

What controller are you using for 55a?
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Old Sep 27, 2003, 09:28 AM
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Kitchener, Ontario, Canada
Joined Jan 2001
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As I said, I throttle back significantly during the flight. I certainly wouldn't reccommend the 12 cell set-up to others, as there is a danger of frying something if you are a "leave it pegged" type of flyer. 37.5% higher than the rated current rating for the controller, and 83% above the motor "limit" is pushing your luck.

If I go through the pack in 5 minutes, the motor gets hot enough to be uncomfortable, but not hot enough to burn you. It is at ambient temperature again in about 7-8 minutes.

The pack gets hot enough to make the shrink-wrapping a bit soft.

I use a Jeti 40-3 Opto controller - non-BEC.

The Phasor seems to put up with these power levels OK, but I think it is better to stick with 10 cells. I find that between a lower efficiency at the motor, and a lower prop efficiency (10" diameter vs 11" diameter), and the greater weight of the 2 extra cells, and receiver pack, the net increase in performance is small.

I would bet that a Sig Seniorita flying with one of these motors on 10 cells with a 12 x 6 would have fine performance (I had one as a first trainer, and flew it with a .40 4 stroke that swung an 11 x 8 @ 8300 RPM), and, flown at the speeds that you would fly a seniorita, you would likely get around 10 minutes on 2400's, and have a motor cool enough to immediately fly again.

I have no qualms about using the 30-3 and similar electric motors in an application that is powered normally by a powerful /25 2-stroke, or a .40 4-stroke. I think the only thing you will give up is the goop.


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Old Oct 01, 2003, 01:24 AM
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NM
Joined Jun 2002
274 Posts
I fly a 72' J3 Cub with my 30-3. 2 to 1 mega gears , 12 scr 2400 cells. APC 13 10 prop.AUW 6 lbs. lots of power for 6 min.It will fly most lite 40 size planes.

Dick Roberts
Navajo Dam , NM
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