ESM Dornier DO 335
I use two 6S 5000 mah packs for my 160s. You can also use 10S, but I like the extra power from the 12S. If you go with 110s they you can use a 9S setup (one 4S and one 5S pack in series). I think twin 110s would be plenty for this plane. My little DO-335 (66" wing span) flew great with twin power 32 motors front and rear using two 4S packs. I really think two 160s is too much, but if you can fit the batteries inside then great it will haul *****. The problem will be finding two nice props to use. They don't make cheap three blade props larger than 16-10. The 16-10s are too small for the Power 160 and you will loose too much power. The twin 110s may work fine with the 16-10s. I had this setup on my Me-110 and it was great. You will have to go with 18-12 or 19-12 two blades for the 160s. I have had good performance with the Zippy packs from Hobby People. You can get the 6S 5800 packs for around $80 each. Not bad !!!
Just don't push them too hard and they will last a long time
Good luck!
Jeff
Jeff
Mr DJ,
You might take a look at Greg Covey's Ampd- Issue #12 here on RCU.
There are two 160s powering a 30 pound F7F Tigercat. The article list the components.
There is also a video of the F7F flying.
The Amp'd issues do a lot to educate.
This size electric seems to be a complex place to start.
Jeff
[/quote]'>Jeff, so help me out a bit more with the batteries and ESC. If I go with E-Flight’s 160 motors on front and rear, would I need the Phonix 160 ESCs by 2 of course to run them with no worries? Also, 12S batts puts out more power than a 10S or 4 4S tied together – correct?
Thanks in advance,
Mr DJ
[/quote]
DJ
I use two 6S 5000 mah packs for my 160s. You can also use 10S, but I like the extra power from the 12S. If you go with 110s they you can use a 9S setup (one 4S and one 5S pack in series). I think twin 110s would be plenty for this plane. My little DO-335 (66" wing span) flew great with twin power 32 motors front and rear using two 4S packs. I really think two 160s is too much, but if you can fit the batteries inside then great it will haul *****. The problem will be finding two nice props to use. They don't make cheap three blade props larger than 16-10. The 16-10s are too small for the Power 160 and you will loose too much power. The twin 110s may work fine with the 16-10s. I had this setup on my Me-110 and it was great. You will have to go with 18-12 or 19-12 two blades for the 160s. I have had good performance with the Zippy packs from Hobby People. You can get the 6S 5800 packs for around $80 each. Not bad !!!
Just don't push them too hard and they will last a long time
Good luck!
Jeff
Hey Jeff,
Jim, another Gent here already has twin 160s, but I think he ran out of money or the misses took his card away for a while (Jim is a kool guy) He gave us a demo of quarter power; it wasn’t impressive at that power; we thought it was full power. Anyways, if you say twin 160s will haul *****, I’ll take your word for it. Ty is going with twin 160s also. I was goin’ to go much, much higher but no longer.
So how would I charge a 12S? I don’t see anything out there to do so. Or should my 12S be twin 6S in series?
As for props, I’m a Beila Man; those are not cheap at all and are somewhat heavier than Master Airscrews and the like, so I’m thinkin’ the 160s or any motor using the Beila won’t turn as fast because of weight; one reason why I was goin’ with a much larger motor.
Many thanks,
Mr DJ
Mr DJ,
You might take a look at Greg Covey's Ampd- Issue #12 here on RCU.
There are two 160s powering a 30 pound F7F Tigercat. The article list the components.
There is also a video of the F7F flying.
The Amp'd issues do a lot to educate.
This size electric seems to be a complex place to start.
Kool Beans on this info.
Thank you, Sir...
Mr DJ
DJ
I use two 6S 5000 mah packs for my 160s. You can also use 10S, but I like the extra power from the 12S. If you go with 110s they you can use a 9S setup (one 4S and one 5S pack in series). I think twin 110s would be plenty for this plane. My little DO-335 (66'' wing span) flew great with twin power 32 motors front and rear using two 4S packs. I really think two 160s is too much, but if you can fit the batteries inside then great it will haul *****. The problem will be finding two nice props to use. They don't make cheap three blade props larger than 16-10. The 16-10s are too small for the Power 160 and you will loose too much power. The twin 110s may work fine with the 16-10s. I had this setup on my Me-110 and it was great. You will have to go with 18-12 or 19-12 two blades for the 160s. I have had good performance with the Zippy packs from Hobby People. You can get the 6S 5800 packs for around $80 each. Not bad !!!
Just don't push them too hard and they will last a long time
Good luck!
Jeff
Jeff
I'm no expert on the Eflite 160 but if I read it right, the description calls for 9-10s lipo batteries. I assume that means no bigger than 10s. Is that correct?
http://www.e-fliterc.com/Products/De...odID=EFLM4160A
Mr DJ,
I'll try to do a rpm test this weekend. I'm waiting for the Sierra retracts before I do any hi rpm testing. Best done with the wings attached and sitting on ground.
On a side note, I flew my Yellow Aircraft P-47 on a 11s, Castle 160HV ESC, Hacker A-80 for the first time on Sunday. Prop was a 22-10. Weight of plane was 28 pounds. It took off in less than 100 feet at full throttle. Flew great.
Those two Eflite 160s flying a plane at (hopefully) just over 30 pounds on a 20-10 prop should fly great...maybe at 3/4 throttle. I decided to start with a couple of two bladed props and move up to the three bladed once it gets sorted out.
Ty,
I will want a cockpit kit...great job.
Jim
Jim,
Thanks for the link! Based on its info, I think I need to go larger. It is equivalent to an OS 160 – I have an OS 160 on my Giant Super Sportster, it ain’t chit. It weights 16lbs and flown with a MA 16x10 3-blade and APC 18x10 2-blade.
The electric 160 = 1.60 glow = 26cc gas. I need way more power than twin 26s turning Biela props which are way larger and heavier than MA or APC.
Gonna hold off on propulsion systems ‘til I see your baby in action.
As for you using 2-blade over the 3-blade, you will have more power and speed with the 2-blade. I use 3-blades on all my birds 'cause they are simply: Kool. I recently found out the Biela does not make a 16x8 3-blade pusher as I was led to believe; they start at 28xXtoo large for the DO. So for me, my front will be 3-blade while rear a 2-blade. Depending on my engine/motor size, my props will be 20x10 3-blade and 18x8 or 10 2-blade.
Mr DJ
I think the specs for the 160s call for 10S, but I have been running 12S as I already have lots of 6S packs that I can use. If you go onto Eflite's web site or Horizon's you can pull up the specs. If you don't already have batteries then you can just use 5S packs as you only need a 10S setup for max output. I have been using Castle 110 HV escs with no problems, but if you want to use 160s that will be fine too.
I still think two Power 110s would be plenty for this plane, but speed is nice too
Here are the specs:
Overview
The Power 160 is designed to deliver clean and quiet power equivalent to or surpassing the power of a 160-size 2-stroke glow engine for sport and scale airplanes weighing 12 to 20 pounds (5.4 to 9 kg), 3D airplanes up to 15 pounds (6.8 kg), or models requiring up to 2700 watts of power.
It provides excellent power for the popular 27% scale aerobatic models such as the Hangar 9 Extra 260, scale performance for the Hangar 9 P-47D Thunderbolt 150 ARF, and extreme performance for models like the famous Ultra Stick Lite.
Product Specifications
Type: Brushless outrunner
Size: Equivalent to or surpassing the power of a 160-size 2-stroke glow engine
Wire Gauge: 13
Recommended Prop Range: 18x8 to 20x10
Voltage: 33.3–38.4
RPM/Volt (Kv): 245
Resistance (Ri): .03 ohms
Idle Current (Io): 1.45A @ 10V
Continuous Current: 60A
Maximum Burst Current: 78A (15 sec)
Cells: 28–32 Ni-MH/Ni-Cd or 9S–10S Li-Po
Speed Control: 85–110A High Voltage Brushless
Weight: 650 g (23.0 oz)
Overall Diameter: 63mm (2.50 in)
Shaft Diameter: 8mm (.30 in) (Includes two 12mm threaded prop shaft adapters with 1.5 pitch)
Overall Length: 64mm (2.50 in)
I broke down and obtained some Sierra Gear. Sending them to Down N Locked for electric conversion – expensive puppies when done.
Check my nice photo spread.
Mr DJ
Hey Mr. DJ,
I just got my Sierra retracts yesturday. Man, they are nice. Much better than the ESM I had...and more money.[]
My wife will put both my legs in a cast if she ever finds out.[X(]
Heal quickly,
jim
Ty
Ty
Ty
You will get plenty of power with either setup and won't be able to tell much difference except in duration. I still think the best setup would be 2 x Power 110s using a 9s setup for each motor. You would reduce the overall weight by 1-2 pounds and still have lots of performance. I don't know what the AUW of the plane will be, but I would guess around 21-22 pounds based on other twins I have setup. You could almost fly this on one Power 160 if that is the final weight.
Jeff