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Old Apr 14, 2012, 10:07 AM
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Lenny970's Avatar
Greeley, Colorado, USA
Joined Feb 2000
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Did you measure the current on those 8S and 7S setups?

How did the CG work out? Did you need to add any nose or tail weight?

Thanks,
Lenny
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Old Apr 14, 2012, 10:40 AM
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Gungho's Avatar
Singapore
Joined Aug 2006
312 Posts
Hi Lenny,

The CG for the 8s setup is about 10mm forward of the recommended CG of between 91-97mm. I have not needed to add any weights on the plane to balance it SO far I have run these set ups

1. 5s 3300mah TPs 65C - 441 grams
2. 6s Optipower 3000mah-475 grams
3. 5S +3S TP 3300mah 65C- 8s - 715 grams
4. 5S+2S 3300mah TP 65C - 7s - 645 grams

For the single packs there is room to move the pack back and forth to adjust the CG. For the 7s and 8s setup, there is no room to move the packs. They are jammed in between the back of the nose cone and the ESC upfront. However its a tad still nose heavy which is a good situation to be in. I did not like the recommended CG range....she seems to fly better nose heavy.

As for current measurements......I don't have the unilog yet...still working on getting a set. But guesstimate the 8s setup was pulling in excess of 300amps and the 7s setup is in an around 250 amp peak. On the 7s setup, I had to put back 1.68Ah after 40 secs of full throttle time. When I eventually get my unilog I will measure it.

BTW, I hope you read Germen as I had to translate the Hurricane Glider manual to get the settings.

Id suggest to maiden your plane on 6s and than when you get into the groove...move it up to 8s. But I can't guarantee your motor on 8s won't disintegrate like mine first motor did. Its a hell of a sight to see it on 8s.
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Old Apr 14, 2012, 10:52 AM
The props of tomorrow
Varna , Bulgaria
Joined Feb 2007
945 Posts
This Neu looks like the Leomotion motors
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Old Apr 18, 2012, 08:51 PM
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Gungho's Avatar
Singapore
Joined Aug 2006
312 Posts
Some in flight photos
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Old Apr 19, 2012, 04:31 PM
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Joined Nov 2009
429 Posts
VERY Nice!!
I ordered mine a month ago with the Neu 1515 and a 18x19 / 7Deg prop. Still investigating if I should go for the recommended YGE ESC or to try the brand bew Jeti Mezon ESC.

Question, do you need to split cells into 3s and 5s as shown on your vid or can you go also for 4+4s?
Best Stephan
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Old Apr 21, 2012, 05:11 AM
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Gungho's Avatar
Singapore
Joined Aug 2006
312 Posts
Hi There,

For CG balancing purpose, you need the setup the 5s+3s or 5S_2s with the bigger pack behind the smaller pack. Reason being the large pack actually sits below and slightly behind the wing joiner. The lighter pack sits in front of the joiner. The 1515 is a heavy motor so this configuration balances the plane nicely without weights. If you go with the 4+4....there is a likely chance you will be too nose heavy.
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Old Apr 21, 2012, 10:15 AM
Needs to do 52 legs !!
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Verenigd Koninkrijk, Fareham
Joined Aug 2008
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Dennis, any more flight with the Hurricane and the YGE? On 7S now? How is that working out?

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Old Apr 21, 2012, 04:11 PM
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Singapore
Joined Aug 2006
312 Posts
7s is ok. No over temp cutoff. But I did send the YGE back for a checkup just in case.
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Old Apr 21, 2012, 04:32 PM
Needs to do 52 legs !!
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Verenigd Koninkrijk, Fareham
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Roger!
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Old Jun 28, 2012, 05:46 AM
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Joined Nov 2009
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Mine finally arrived yesterday. The manufacturing quality is really impressive.
Look forward to get it ready
Best
Stephan
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Old Jun 28, 2012, 06:29 AM
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Gungho's Avatar
Singapore
Joined Aug 2006
312 Posts
Great!!!

My suggestion...start with 7S. Thats about 5000 watts with the 1515/1/5D.

With Throttle ramp, you can lower the power to about 4500 watts...

Beware....on 8S this plane screams(from prop stalling)

See attached unilog curve on 7s
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Old Jun 28, 2012, 01:19 PM
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Greeley, Colorado, USA
Joined Feb 2000
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Quote:
Originally Posted by schiwo1 View Post
Mine finally arrived yesterday. The manufacturing quality is really impressive.
Look forward to get it ready
Best
Stephan
Sweet! That looks like the colors I ordered too.

Lenny
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Old Jul 20, 2012, 11:45 AM
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Joined Nov 2009
429 Posts
Hi Gungho,
in the middle of my built and I ran into a problem with the Rx battery placement.
Where did you place the on/off switch?
Thx for your hints.
BTW thanks for posting your built pictures above - very helpful!
Best Stephan
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Old Jul 20, 2012, 06:39 PM
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Singapore
Joined Aug 2006
312 Posts
Stephan,

I used one of these. I drill a hole just slightly behind the rx in the fuselage and installed this. It's on when you remove the Plug and off when inserted. And you can charge the rx battery thru the plug.

http://www.so!ringusa.com/product.ph...&cat=59&page=1

I will post a picture later.

The only thing I did not do is get excess to the balancing plug of the rx lipo.
One thing to note, becos of the way stratair wires up the green multiplex plugs, power from battery to rx can only flow when u plug the nose In. The nose plug is also a switch.

I must also warn you it is "fun" trying to Slide the whole assembly with the switch and the antenna wires into the back. I had to use a long stick and masking tape to hold the switch.
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Last edited by Gungho; Jul 20, 2012 at 11:09 PM.
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