jbflier

Thanks Bob; Anyway, with the radial mount it seems like you get everything but the prop to get you going.....Regards

A10FLYR

My Feedback: (1)

I'd guess you would be better off with a 3P pack because of current draw. Here's a pic of what I did for an AXI mount on a U-CAN-DO 60. AXI 4130/20, 6S3P TP 2100s, (yellow lable), turning a Zinger 20X6 for first attempt. Zinger 18X6/10 pulls to much current, 18X6 not enough!

StephenT

jb

that 4200 mah pack does not support much more than 40 amps. My friend is pulling 50 Amps with his AXI 4120. Becareful how you prop it so you don't go beyond the batteries amp discharge rate.

jbflier

So, a 5s3p sounds more appropriate. At least I think I'm narrowing this battery thing down, except for the proper mah. Maybe 6000mah? Thanks to all for the help.....................

StephenT

Bhouin

I reformed my two 6 cell Nimh packs into one long 12cell pack. In stead of 2 packs side by side in the wing cradle area, I can shove one end of the long single pack all of the way to the fire wall and obtain better balance. When I use my 5S lipo, I put the 3S in the area in front of the wing and the 2S in the cradle area. Balance and flight is better. Also switched to a 15x8 prop. Pictures later.

StephenT

Bhouin

I checked the Funtana w the 15x8 prop. I get over 750 watts, but also over 45 amps. The Lipos I have only handle 42 Amps and the li-saver starts to pulse the motor. On the 14x7 prop every thing is okay. Flies great, limited vertical. I am going to double up my packs and make a 5S2P that canhandle 84 Amps (33 .oz). The added forward battery weight will allow me to take out more nose weight. I have a 70 Amp controller if I need it.

I also made a 14 Cell 3000 Nimh (31 .oz) pack to try when I dissconnect the Li-saver. 587 watts, 43 Amps w 15x8 prop.

Flight reports on Thursday.

jbflier

StephenT; I've been reading your threads with Bhouin with interest. I too have the Funtana with an AXI 4120/18 & Jeti70 ESC. I also purchased (2) Thunder Power lithium 3 cell 4200mAh packs for a 6s2p configuration with a 15x8 or 15x10 prop. I only sport fly; no 3-D so I am hopeful this combo should work for me. What do you think? Thanks for any imput.......

bhouin

My Feedback: (106)

Stephen,

Sounds good. Looking forward to your flight report.

StephenT

JB

According to HL catalog it should work. 16cells=19.2 volts 6S=22.2 volts. Your Amps and watts might be slightly higher with the increase in voltage. HL suggests a 14x9.5 prop=39 A and 500 watts or close to it. You may want to cut the prop size to keep the Amps down since your TP pack is rated at 42 Amps max. Try a 14x7 or 15x8.

I always check my stuff with a Astroflight Whattmeter before test flight. I don't want to over amp those LIPO's. I have ruined over 200 dollars worth already. four cells from over charging and one from over amping.

jbflier

Thanks StephenT; Well, all of the purchasing has been done. I want to thank everyone who have been patient with my questions, but as most know I'm coming from 28-30% gassers and this is all "Greek" to me. Happy Holidays to all............

StephenT

bhouin


Test results are in. Straight up forever is possible. Hover is not only because I have too much right thrust. I do need to put in a heftier speed control. after 7 min of flying, the speed control thermaled off. After a spell for cooling off I was able to fly again. I'll have to put in a 70 Amp.

bhouin

My Feedback: (106)

Stephen,

That sounds great. Getting her sorted out just fine. Sounds like you have a little better performance than what I have found yet. I will have to keep playing with different props this next spring after the weather breaks to see if I can extract a little more from my setup.

StephenT

Bhouin


Put on a 14x7 to cut the Amps. Still straight up preformance with the extra available MAH. I'm taking out some of the right thrust tonight. I'll test fly tomarrow if the weather is good.

StephenT

Bhouin

Problems with my power system have been fixed. The plane will hover in the right hands now that the extreme R thrust is corrected. Flew on Thursday. I keep spinning off the prop so I put a drop of CA in front of the nut. Christmas flying was cancelled due to ice cold rain. I have to work Christmas night. I'm there now! Working hard! Ha! Ha! Good news though. I got a 2 channel P-51 from Radio Shack from my lady as well as money for a large lipoly battery. I only gave her some jewelery and kitchen appliances.

bhouin

My Feedback: (106)

Stephen,

Glad things are getting sorted out.

To even have the ability to think about flying on Christmas is a nice thing. It was around 10 degrees here on Christmas.

Hope you had a great Christmas (other than working christmas night)

StephenT

bhouin


Rained all day and night. Got and gave lots of good presents and best of all my son is down for a week. He has been working on his Venus 40. He says it is ready to test fly with his TH .61. I'm off the next four days and am not answering the phone for work.

StephenT

Bhouin

My Funtana is dead. I was doing a maximun preformance takeoff, got into straight up verticle ten feet off of the ground when the speed controller cut out. I dropped the nose to get into a glide,but I had lost too much forward movement and pancakd into the runway.

The motor had been giving me some overheating problems with the 5S2P packs so I added a lot of air flow and a bigger speed control. Post crash investigation showed the radio and motor worked but the pinion was binding with the set screw and shutting off the motor the same as in flight. The little things will kill you!

StephenT

Here are the remains. The wing was the only thing undamaged.

bhouin

My Feedback: (106)

Stephen,

I hate to hear that. I am assuming that the drive system (batts, controller, motor, gearbox) made it thru the crash? Are you planning on rebuilding/replacing the fuse? Is that binding correctable?

StephenT

Bhouin

The binding seems to be corrected. I went to a 14 tooth pinion held w/loctite and 5: 1 gearing with a smaller 13x6.5 prop and put the system back in to my E-Magic from where it came. I had used it with 14.8 Volts without problems. The problems started with the higher voltage in the bigger plane. Now that it is in the Magic again it has tested okay on the ground even with the 18.5 Volts. Of course everything hangs in the breeze on the Magic. Working tonight, test flight in the AM or next day off.

StephenT

Bhouin

I had to drop all the way to a 12x4 prop to keep the motor from overheating even inthe E-Magic w/18.5 volts. The 13x6.5 worked for a while but then went into thermal shut down. The 12x4 yields 580 watts at 40 Amps WOT. Test Flight tomarrow.


I have chosen to try and rebuild the Funtana 40. I have pulled the fuselage covering off and glued it back togather. Recovering it will be the hardest thing for me. It was mainly a break at the front of the wing cradle with some minor damage to the elevator.

bhouin

My Feedback: (106)

Glad to see that you are going to rebuild. What are your thoughts about powering it?

StephenT

Bhouin


If I can rebuild it to a good looking ship, I will try the Big Feigao XL w/GB or the new 25 astroflight w/GB. My MEC system didn't cut it for this big plane. I'll leave it in the E-Magic.

StephenT

Bhouin


I have the Funtana recovered. I'm just waiting for the Decal Set from LHS. I installed my AXI 282010 geared 2:1. It won't have the 3D power it once had, but it should fly. 14 cells should give it 500+ watts. About 88 watts per pound. If this isn't good enough, I'll get a Kontronic or Feigio inline GB motor.

StephenT

Guys


With my 4S lipo and the AXI 2:1 with a 15x8 I get 533 cont watts. 200 less than 5S but a lighter plane. It should fly but won't be the verticle rocket it once was. I'm Still saving for a new high amp/watt motor. I was unable to test fly today. Too much fog this AM even at ten o'clock. Gotta sleep so I can work the next two nights. I'll try on Tuesday.